[Federal Register: July 13, 2005 (Volume 70, Number 133)]
[Rules and Regulations]               
[Page 40419-40612]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr13jy05-20]                         
 

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Part II





Environmental Protection Agency





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40 CFR Parts 85, 86, et al.



Test Procedures for Testing Highway and Nonroad Engines and Omnibus 
Technical Amendments; Final Rule


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Parts 85, 86, 89, 90, 91, 92, 94, 1039, 1048, 1051, 1065, 
and 1068

[AMS-FRL-7922-5]
RIN 2060-AM35

 
Test Procedures for Testing Highway and Nonroad Engines and 
Omnibus Technical Amendments

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final Rule.

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SUMMARY: This regulation revises and harmonizes test procedures from 
the various EPA programs for controlling engine emissions. It does not 
change emission standards, nor is it intended to change the emission 
reductions expected from these EPA programs. Rather, it amends the 
regulations that describe laboratory specifications for equipment and 
test fuels, instructions for preparing engines and running tests, 
calculations for determining final emission levels from measured 
values, and instructions for running emission tests using portable 
measurement devices outside the laboratory. These updated testing 
regulations currently apply to land-based nonroad diesel engines, land-
based nonroad spark-ignition engines over 19 kilowatts, and 
recreational vehicles. The revisions in this final rule will update the 
regulations to deal more effectively with the more stringent standards 
recently promulgated by EPA and will also clarify and better define 
certain elements of the required test procedures. In particular, the 
amendments better specify the procedures applicable to field testing 
under the regulations.
    This action also applies the updated testing regulations to highway 
heavy-duty diesel engine regulations. This action is appropriate 
because EPA has historically drafted a full set of testing 
specifications for each vehicle or engine category subject to emission 
standards as each program was developed over the past three decades. 
This patchwork approach has led to some variation in test parameters 
across programs, which we hope to address by adopting a common set of 
test requirements. The primary goal of this effort is to create unified 
testing requirements for all engines, which when implemented will 
streamline laboratory efforts for EPA and industry.
    This action will also include other technical changes intended to 
clarify and better define requirements for several different EPA engine 
programs. These changes are relatively minor and are technical in 
scope.

DATES: This final rule is effective September 12, 2005.
    The incorporation by reference of certain publications listed in 
this regulation is approved by the Director of the Federal Register as 
of September 12, 2005.

ADDRESSES: EPA has established a docket for this action under Docket ID 
No. OAR-2004-0017. All documents in the docket are listed in the 
EDOCKET index at http://www.epa.gov/edocket. Although listed in the 

index, some information is not publicly available, i.e., CBI or other 
information whose disclosure is restricted by statute. Certain other 
material, such as copyrighted material, is not placed on the Internet 
and will be publicly available only in hard copy form. Publicly 
available docket materials are available either electronically in 
EDOCKET or in hard copy at the Air Docket in the EPA Docket Center, 
EPA/DC, EPA West, Room B102, 1301 Constitution Ave., NW., Washington, 
DC. The Public Reading Room is open from 8:30 a.m. to 4:30 p.m., Monday 
through Friday, excluding legal holidays. The telephone number for the 
Public Reading Room is (202) 566-1744, and the telephone number for the 
Air Docket is (202) 566-1742.

FOR FURTHER INFORMATION CONTACT: Alan Stout, U.S. EPA, Voice-mail (734) 
214-4636; E-mail: stout.alan@epa.gov.

SUPPLEMENTARY INFORMATION:

A. Regulated Entities

    This action affects companies that manufacture or sell engines. 
Regulated categories and entities include:

------------------------------------------------------------------------
                                                         Examples of
            Category                NAICS codes a        potentially
                                                      regulated entities
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Industry.......................  333618............  Manufacturers of
                                                      new engines.
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a North American Industry Classification System (NAICS)

    This list is not intended to be exhaustive, but rather provides a 
guide regarding entities likely to be regulated by this action. To 
determine whether particular activities may be regulated by this 
action, you should carefully examine the regulations. You may direct 
questions regarding the applicability of this action to the person 
listed in FOR FURTHER INFORMATION CONTACT.

B. How Can I Get Copies of This Document and Other Related Information?

    1. Docket. EPA has established an official public docket for this 
action under Docket ID No. OAR-2004-0017. The official public docket 
consists of the documents specifically referenced in this action, any 
public comments received, and other information related to this action. 
Although a part of the official docket, the public docket does not 
include Confidential Business Information (CBI) or other information 
whose disclosure is restricted by statute. Documents in the official 
public docket are listed in the index list in EPA's electronic public 
docket and comment system, EDOCKET. Documents may be available either 
electronically or in hard copy. Electronic documents may be viewed 
through EDOCKET. Hard copy documents may be viewed at the EPA Docket 
Center, (EPA/DC) EPA West, Room B102, 1301 Constitution Ave., NW., 
Washington, DC. Docket in The EPA Docket Center Public Reading Room is 
open from 8:30 a.m. to 4:30 p.m., Monday through Friday, excluding 
legal holidays. The telephone number for the Public Reading Room is 
(202) 566-1744.
    This rule relies in part on information related to our November 
2002 final rule, which can be found in Public Docket A-2000-01. This 
docket is incorporated by reference into the docket for this action, 
OAR-2004-0017.
    2. Electronic Access. You may access this Federal Register document 
electronically through the EPA Internet under the ``Federal Register'' 
listings at http://www.epa.gov/fedrgstr/ Or you can go to the federal-

wide eRulemaking site at http://www.regulations.gov.

    An electronic version of the public docket is available through 
EDOCKET. You may use EDOCKET at http://www.epa.gov/edocket/ to view 

public comments, access the index listing of the contents of the 
official public docket, and to access those documents in the public 
docket that are available electronically. Once in the system, select 
``search,'' then key in the appropriate docket identification number.

Table of Contents

I. Modified Test Procedures for Highway and Nonroad Engines
    A. Incorporation of Nonroad Test Procedures for Heavy Duty 
Highway Engines
    B. Revisions to Part 1065
II. Technical Amendments
    A. Standard-Setting Changes that Apply to Multiple Categories

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    B. Nonroad general compliance provisions (40 CFR part 1068)
    C. Land-based nonroad diesel engines (40 CFR parts 89 and 1039)
    D. Marine diesel engines (40 CFR part 94)
    E. Small nonroad spark-ignition engines (40 CFR part 90)
    F. Marine spark-ignition engines (40 CFR part 91)
    G. Large nonroad spark-ignition engines (40 CFR part 1048)
    H. Recreational vehicles (40 CFR part 1051)
    I. Locomotives (40 CFR part 92)
    J. Highway engines and vehicles (40 CFR part 86)
III. Public Participation
IV. Statutory and Executive Order Reviews
V. Statutory Provisions and Legal Authority

I. Modified Test Procedures for Highway and Nonroad Engines

A. Incorporation of Nonroad Test Procedures for Heavy Duty Highway 
Engines

    As part of our initiative to update the content, organization and 
writing style of our regulations, we are revising our test 
procedures.\1\ We have grouped all of our engine dynamometer and field 
testing test procedures into one part entitled, ``Part 1065: Test 
Procedures.'' For each engine or vehicle sector for which we have 
recently promulgated standards (such as land-based nonroad diesel 
engines or recreational vehicles), we identified an individual part as 
the standard-setting part for that sector. These standard-setting parts 
then refer to one common set of test procedures in part 1065. We intend 
in this rule to continue this process of having all our engine programs 
refer to a common set of procedures by applying part 1065 to all heavy-
duty highway engines.
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    \1\ For an overview of our new regulatory organization, refer to 
our fact sheet entitled, ``Plain-Language Format of Emission 
Regulations for Nonroad Engines,'' EPA420-F-02-046, September 2002, 
http://www.epa.gov/otaq/largesi.htm.

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    In the past, each engine or vehicle sector had its own set of 
testing procedures. There are many similarities in test procedures 
across the various sectors. However, as we introduced new regulations 
for individual sectors, the more recent regulations featured test 
procedure updates and improvements that the other sectors did not have. 
As this process continued, we recognized that a single set of test 
procedures would allow for improvements to occur simultaneously across 
engine and vehicle sectors. A single set of test procedures is easier 
to understand than trying to understand many different sets of 
procedures, and it is easier to move toward international test 
procedure harmonization if we only have one set of test procedures. We 
note that procedures that are particular for different types of engines 
or vehicles, for example, test schedules designed to reflect the 
conditions expected in use for particular types of vehicles or engines, 
will remain separate and will be reflected in the standard-setting 
parts of the regulations.
    In addition to reorganizing and rewriting the test procedures for 
improved clarity, we are making a variety of changes to improve the 
content of the testing specifications, including the following:
     Writing specifications and calculations in international 
units
     Adding procedures by which manufacturers can demonstrate 
that alternate test procedures are equivalent to specified procedures.
     Including specifications for new measurement technology 
that has been shown to be equivalent or more accurate than existing 
technology; procedures that improve test repeatability, calculations 
that simplify emissions determination; new procedures for field testing 
engines, and a more comprehensive set of definitions, references, and 
symbols.
     Defining calibration and accuracy specifications that are 
scaled to the applicable standard, which allows us to adopt a single 
specification that applies to a wide range of engine sizes and 
applications.
    Some emission-control programs already rely on the test procedures 
in part 1065. These programs regulate land-based nonroad diesel 
engines, recreational vehicles, and nonroad spark-ignition engines over 
19 kW.
    We are adopting the lab-testing and field-testing specifications in 
part 1065 for all heavy-duty highway engines, as described in Section 
II.J. These procedures replace those currently published in subpart N 
in 40 CFR part 86. We are making a gradual transition from the part 86 
procedures. For several years, manufacturers will be able to optionally 
use the part 1065 procedures. By the 2010 model year, part 1065 
procedures will be required for any new testing. For all testing 
completed for 2009 and earlier model years, manufacturers may continue 
to rely on carryover test data based on part 86 procedures to certify 
engine families in later years. In addition, other subparts in part 86, 
as well as regulations for many different nonroad engines refer to the 
test procedures in part 86. We are including updated references for all 
these other programs to refer instead to the appropriate cite in part 
1065.
    Part 1065 is also advantageous for in-use testing because it 
specifies the same procedures for all common parts of field testing and 
laboratory testing. It also contains new provisions that help ensure 
that engines are tested in a laboratory in a way that is consistent 
with how they operate in use. These new provisions will ensure that 
engine dynamometer lab testing and field testing are conducted in a 
consistent way.
    In the future, we may apply the test procedures specified in part 
1065 to other types of engines, so we encourage companies involved in 
producing or testing other engines to stay informed of developments 
related to these test procedures. For example, we expect to propose in 
the near future new regulations for locomotives, marine engines, and 
several types of nonroad SI engines. We are likely to consider some 
changes to part 1065 in each of these rulemakings.

B. Revisions to Part 1065

    Part 1065 was originally adopted on November 8, 2002 (67 FR 68242), 
and was initially applicable to standards regulating large nonroad 
spark-ignition engines and recreational vehicles under 40 CFR parts 
1048 and 1051. The recent rulemaking adopting emission standards for 
nonroad diesel engines has also made part 1065 optional for Tier 2 and 
Tier 3 standards and required for Tier 4 standards. The test procedures 
initially adopted in part 1065 were sufficient to conduct testing, but 
in this final rule we have reorganized these procedures and added 
content to make various improvements. In particular, we have 
reorganized part 1065 by subparts as shown below:

Subpart A: general provisions; global information on applicability, 
alternate procedures, units of measure, etc.
Subpart B: equipment specifications; required hardware for testing
Subpart C: measurement instruments
Subpart D: calibration and verifications; for measurement systems
Subpart E: engine selection, preparation, and maintenance
Subpart F: test protocols; step-by-step sequences for laboratory 
testing and test validation
Subpart G: calculations and required information
Subpart H: fuels, fluids, and analytical gases
Subpart I: oxygenated fuels; special test procedures
Subpart J: field testing and portable emissions measurement systems
Subpart K: definitions, references, and symbols

    The regulations now prescribe scaled specifications for test 
equipment and measurement instruments by parameters such as engine 
power, engine speed and the emission standards to which an engine must 
comply. That way this single set of specifications will cover the

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full range of engine sizes and our full range of emission standards. 
Manufacturers will be able to use these specifications to determine 
what range of engines and emission standards may be tested using a 
given laboratory or field testing system.
    The new content for part 1065 is mostly a combination of content 
from our most recent updates to other test procedures and from test 
procedures specified by the International Organization for 
Standardization (ISO). In some cases, however, there is new content 
that never existed in previous regulations. This new content addresses 
very recent issues such as measuring very low concentrations of 
emissions, using new measurement technology, using portable emissions 
measurement systems, and performing field testing. A full description 
of the changes is in the Technical Support Document that accompanies 
this final rule (this document is available in the docket for this 
rulemaking).
    The new content also reflects a shift in our approach for 
specifying measurement performance. In the past we specified numerous 
calibration accuracies for individual measurement instruments, and we 
specified some verifications for individual components, such as 
NO2 to NO converters. We have shifted our focus away from 
individual instruments and toward the overall performance of complete 
measurement systems. We did this for several reasons. First, some of 
what we specified in the past precluded the implementation of new 
measurement technologies. These new technologies, sometimes called 
``smart analyzers'', combine signals from multiple instruments to 
compensate for interferences that were previously tolerable at higher 
emissions levels. These analyzers are useful for detecting low 
concentrations of emissions. They are also useful for detecting 
emissions from raw exhaust, which can contain high concentrations of 
interferences, such as water vapor. This is particularly important for 
field testing, which will most likely rely upon raw exhaust 
measurements. Second, this new ``systems approach'' challenges complete 
measurement systems with a series of periodic verifications, which we 
feel will provide a more robust assurance that a measurement system as 
a whole is operating properly. Third, the systems approach provides a 
direct pathway to demonstrate that a field test system performs 
similarly to a laboratory system. This is explained in more detail in 
item 10 below. Finally, we feel that our systems approach will lead to 
a more efficient way of assuring measurement performance in the 
laboratory and in the field. We believe that this efficiency will stem 
from less frequent individual instrument calibrations, and higher 
confidence that a complete measurement system is operating properly.
    We have organized the new content relating to measurement systems 
performance into subparts C and D. We specify measurement instruments 
in subpart C and calibrations and periodic system verifications in 
subpart D. These two subparts apply to both laboratory and field 
testing. We have organized content specific to running a laboratory 
emissions test in subpart F, and we separated content specific to field 
testing in subpart J.
    In subpart C we specify the types of acceptable instruments, but we 
only recommend individual instrument performance. We provide these 
recommendations as guidance for procuring new instruments. We feel that 
the periodic verifications that we require in subpart D will 
sufficiently evaluate the individual instruments as part of their 
respective overall measurement systems. In subpart F we specify 
performance validations that must be conducted as part of every 
laboratory test. In subpart J we specify similar performance 
validations for field testing that must be conducted as part of every 
field test. We feel that the periodic verifications in subpart D and 
the validations for every test that we prescribed in subparts F and J 
ensure that complete measurement systems are operating properly.
    In subpart J we also specify an additional overall verification of 
portable emissions measurement systems (PEMS). This verification is a 
comprehensive comparison of a PEMS versus a laboratory system, and it 
may take several days of laboratory time to set up, run, and evaluate. 
However, we only require that this particular verification must be 
performed at least once for a given make, model, and configuration of a 
field test system.
    Below is a brief description of the content of each subpart, 
highlighting some of the new content. We also highlight the more 
significant changes from the regulatory language that was proposed in 
our responses to public comments. See the TSD for a more complete 
listing of the changes and comments to our proposed part 1065.
1. Subpart A: General Provisions
    In Subpart A we identify the applicability of part 1065 and 
describe how procedures other than those in part 1065 may be used to 
comply with a standard-setting part. In Sec.  1065.10(c)(1), we specify 
that testing must be conducted in a way that represents in-use engine 
operation, such that in the rare case where provisions in part 1065 
result in unrepresentative testing, other procedures would be used. We 
have revised the proposed regulatory language for this requirement to 
clarify the manufacturers' requirements and the process that we would 
use to make changes to the test procedures in these cases.
    Other information in this subpart includes a description of the 
conventions we use regarding units and certain measurements and we 
discuss recordkeeping. We also provide an overview of how emissions and 
other information are used to determine final emission results. The 
regulations in Sec.  1065.15 include a figure illustrating the 
different ways we allow brake-specific emissions to be calculated.
    In this same subpart, we describe how continuous and batch sampling 
may be used to determine total emissions. We also describe the two ways 
of determining total work that we approve. Note that the figure 
indicates our default procedures and those procedures that require 
additional approval before we will allow them.
2. Subpart B: Equipment Specifications
    Subpart B first describes engine and dynamometer related systems. 
Many of these specifications are scaled to an engine's size, speed, 
torque, exhaust flow rate, etc. We specify the use of in-use engine 
subsystems such as air intake systems wherever possible in order to 
best represent in-use operation when an engine is tested in a 
laboratory.
    Subpart B also describes sampling dilution systems. These include 
specifications for the allowable components, materials, pressures, and 
temperatures. We describe how to sample crankcase emissions. We also 
now allow limited use of partial-flow dilution for PM sampling. Subpart 
B also specifies environmental conditions for PM filter stabilization 
and weighing. Although these provisions mostly come from our recent 
update to part 86, subpart N, we also describe some new aspects in 
detail.
    The regulations in Sec.  1065.101 include a diagram illustrating 
all the available equipment for measuring emissions.
3. Subpart C: Measurement Instruments
    Subpart C specifies the requirements for the measurement 
instruments used for testing. In subpart C we recommend accuracy, 
repeatability, noise, and response time specifications for individual 
measurement instruments, but note that we require that overall

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measurement systems meet the calibrations and verifications Subpart D.
    In some cases we allow new instrument types to be used where we 
previously did not allow them. For example, we now allow the use of a 
nonmethane cutter for NMHC measurement, a nondispersive ultraviolet 
analyzers for NOX measurement, zirconia sensors for 
O2 measurement, various raw-exhaust flow meters for 
laboratory and field testing measurement, and an ultrasonic flow meter 
for CVS systems. We had proposed to also allow zirconia sensors for 
NOX measurement, but we are not finalizing that option at 
this time because of manufacturer concerns about drift and sensor 
response to NO2 and NH3.
4. Subpart D: Calibrations and Verifications
    Subpart D describes what we mean when we specify accuracy, 
repeatability and other parameters in subpart C. We are adopting 
calibrations and verifications that scale with engine size and with the 
emission standards to which an engine is certified. We are replacing 
some of what we have called ``calibrations'' in the past with a series 
of verifications, such as a linearity verification, which essentially 
verifies the calibration of an instrument without specifying how the 
instrument must be initially calibrated. Because new instruments have 
built-in routines that linearize signals and compensate for various 
interferences, our existing calibration specifications sometimes 
conflicted with an instrument manufacturer's instructions. In addition, 
there are new verifications in subpart D to ensure that the new 
instruments we specify in subpart C are used correctly. The most 
significant changes in this subpart from the proposal are that we split 
the language for continuous gas analyzer verification into two sections 
(Sec. Sec.  1065.308 and 1065.309), we provide more detailed 
descriptions for the FID O2 interference verifications 
(Sec.  1065.362) and NMHC cutter setups (Sec.  1065.365), and we added 
Sec.  1065.395 for inertial PM balance verification.
5. Subpart E: Engine Selection, Preparation, and Maintenance
    Subpart E describes how to select, prepare, and maintain a test 
engine. We updated these provisions to include both gasoline and diesel 
engines. This subpart is relatively short, and we did not make many 
changes to its proposed content.
6. Subpart F Test Protocols
    Subpart F describes the step-by-step protocols for engine mapping, 
test cycle generation, test cycle validation, pre-test preconditioning, 
engine starting, emission sampling, and post-test validations. We 
proposed an improved way to map and generate cycles for constant-speed 
engines that would better represent in-use engine operation. We have 
modified this language slightly to reflect the different ways in which 
constant-speed test cycles can be specified. We are adopting a more 
streamlined set of test cycle and validation criteria. We allow modest 
corrections for drift of emission analyzer signals within a certain 
range. We are also adopting a recommended procedure for weighing PM 
samples. We are not finalizing our proposed procedure to correct for 
instrument noise because after receiving many comments, we now 
acknowledge that the procedure is not robust and applicable to all 
emissions.
7. Subpart G Calculations and Required Information
    Subpart G includes all the calculations required in part 1065. We 
are adopting definitions of statistical quantities such as mean, 
standard deviation, slope, intercept, t-test, F-test, etc. By defining 
these quantities mathematically we intend to resolve any potential mis-
communication when we discuss these quantities in other subparts. We 
have written all calculations for calibrations and emission 
calculations in international units to comply with 15 CFR part 1170, 
which removes the voluntary aspect of the conversion to international 
units for federal agencies. Furthermore, Executive Order 12770 (56 FR 
35801, July 29, 1991) reinforces this policy by providing Presidential 
authority and direction for the use of the metric system of measurement 
by Federal agencies and departments. For our standards that are not 
completely in international units (i.e., grams/horsepower-hour, grams/
mile), we specify in part 1065 the correct use of internationally 
recognized conversion factors.
    We also specify emission calculations based on molar quantities for 
flow rates, instead of volume or mass. This change eliminates the 
frequent confusion caused by using different reference points for 
standard pressure and standard temperature. Instead of declaring 
standard densities at standard pressure and standard temperature to 
convert volumetric concentration measurements to mass-based units, we 
declare molar masses for individual elements and compounds. Since these 
values are independent of all other parameters, they are known to be 
universally constant.
    We have added some detail to the calculations relative to the 
proposed calculations to make them clearer. We also made changes in 
response to comments from manufacturers.
8. Subpart H Fuels, Fluids, and Analytical Gases
    Subpart H specifies test fuels, lubricating oils and coolants, and 
analytical gases for testing. We are eliminating the Cetane Index 
specification for all diesel fuels, because the existing specification 
for Cetane Number sufficiently determines the cetane levels of diesel 
test fuels. We are not identifying any detailed specification for 
service accumulation fuel. Instead, we specify that service 
accumulation fuel may be a test fuel or a commercially available in-use 
fuel. This helps ensure that testing is representative of in-use engine 
operation. We are adding a list of ASTM specifications for in-use fuels 
as examples of appropriate service accumulation fuels. Compared to the 
proposed regulatory language, we have clarified that Sec.  
1065.10(c)(1) does not require test fuels to be more representative 
than the specified test fuels. We have added an allowance to use 
similar test fuels that do not meet all of the specifications, provided 
they do not compromise the manufacturer's ability to demonstrate 
compliance. We also now allow the use of ASTM test methods specified in 
40 CFR part 80 in lieu of those specified in part 1065. We did this 
because we more frequently review and update the ASTM methods in 40 CFR 
part 80 versus those in part 1065.
    We proposed purity specifications for analytical gases that scale 
with the standards that an engine must meet. In the final regulations, 
we have clarified the requirement to use good engineering judgment to 
maintain the stability of these gases, and have tightened the purity 
specification for FID fuel in response to comment.
9. Subpart I Oxygenated Fuels
    Subpart I describes special procedures for measuring certain 
hydrocarbons whenever oxygenated fuels are used. We updated the 
calculations for these procedures in Subpart G. We have made some 
revisions to the proposed text to make it consistent the original 
content of the comparable provisions in 40 CFR part 86. We have also 
added an allowance to use the California NMOG

[[Page 40424]]

test procedures to measure alcohols and carbonyls.
10. Subpart J Field Testing and Portable Emissions Measurement Systems
    We are adopting a wide range of changes to subpart J Field Testing. 
Portable Emissions Measurement Systems (PEMS) must generally meet the 
same specifications and verifications that laboratory instruments must 
meet, according to subparts B, C, and D. However, allow some deviations 
from laboratory specifications. In addition to meeting many of the 
laboratory system requirements, a PEMS must meet an overall 
verification relative to a laboratory measurements. This verification 
involves repeating a duty cycle several times. The duty cycle itself 
must have several individual field-test intervals (e.g., NTE events) 
against which a PEMS is compared to the laboratory system. This is a 
comprehensive verification of a PEMS. We are also adopting a procedure 
for preparing and conducting a field test, and we are adopting drift 
corrections for emission analyzers. Given the evolving state of PEMS 
technology, the field-testing procedures provide for a number of known 
measurement techniques. We have added provisions and conditions for the 
use of PEMS in an engine dynamometer laboratory to conduct laboratory 
testing.
11. Subpart K Definitions, References, and Symbols
    In subpart K we are adopting new and revised definitions of terms 
frequently used in part 1065. For example we have revised our 
definitions of ``brake power'', ``constant-speed engine'', and 
``aftertreatment'' to provide more clarity, and we have added new 
definitions for things such as ``300 series stainless steel'', 
``barometric pressure'', and ``operator demand''. There are new 
definitions such as ``duty cycle'' and ``test interval'' to distinguish 
the difference between a single interval over which brake-specific 
emissions are calculated and the complete cycle over which emissions 
are evaluated in a laboratory. We also present a thorough and 
consistent set of symbols, abbreviations, and acronyms.

II. Technical Amendments

A. Standard-Setting Changes That Apply to Multiple Categories

1. Definitions
    We are revising several definitions that apply over more than one 
part of our regulations. These changes are designed to harmonize our 
regulations.
    We are changing the definition of Marine engine and Marine vessel 
to harmonize our approach to amphibious vehicles and clarify other 
issues. We have treated amphibious vehicles differently whether they 
had a diesel engine or a spark-ignition engine. We are harmonizing our 
treatment of amphibious vehicles by consistently treating these as 
land-based products. We are also adding a provision defining amphibious 
vehicles are those that are designed primarily for operation on land to 
clarify that we don't consider hovercraft to be amphibious vehicles. 
This is consistent with our intent and our analyses in the rulemaking 
to initially set standards for these products. See the Technical 
Support Document for additional information related to these 
definitions. In particular, note that we describe our interpretation of 
what it means for an engine to be ``installed in a marine vessel.'' 
Manufacturers have raised several questions related to this issue, 
especially as it relates to portable engines installed on barges.
2. Penalties
    The Clean Air Act specifies maximum penalty amounts corresponding 
to each prohibited Act. These maximum penalty amounts are periodically 
adjusted for inflation, based on the provisions of the Debt Collection 
Improvement Act. These maximum penalties have been updated under 40 CFR 
part 19. The new maximum penalties are $32,500 for introducing 
noncompliant engines into commerce and for manufacturers guilty of 
tampering, and $2,750 for non-manufacturers guilty of tampering. In 
addition, the maximum penalty we can recover using administrative 
procedures is $270,000. We are extending these revised penalties into 
each of our emission-control programs.
3. Deterioration Factors for HC+NOX Standards
    Manufacturers requested that we allow them to calculate a single 
deterioration factor for engines that are subject to combined 
HC+NOX emission standards, rather than calculating separate 
deterioration factors for each pollutant. We proposed for some engines 
to clarify that separate deterioration factors were appropriate. In the 
case of spark-ignition engines, it is especially true that changing 
carburetor calibrations and other things affecting air-fuel ratios have 
a direct inverse relationship on HC and NOX emissions. Where 
deterioration factors are based on service accumulation through the 
entire useful life, we believe it is therefore appropriate to base 
deterioration factors for spark-ignition engines subject to 
HC+NOX emission standards on a single deterioration factor 
for the combined pollutants. However, if deteriortion factors are based 
on service accumulation over less than the full useful life, we want to 
avoid the situation where a manufacturer is extrapolating values that 
presume further improvement in the emission levels of any particular 
pollutant. For such testing, we therefore specify that separate 
deterioration factors for each pollutant are appropriate. We are making 
a related, additional change to clarify that manufacturers must include 
both low-hour and deteriorated emission measurements for each 
pollutant, even if the regulations allow for a single deterioration 
factor for HC+NOX emissions together. Compression-ignition 
engines have different wear mechanisms and generally have much longer 
useful-life values, so it is not clear that this approach to allowing 
combined deterioration factor is appropriate for these engines. We may 
further consider applying this change to compression-ignition engines 
in a future rulemaking.
4. Emission Warranty Related to Extended Service Contracts
    Manufacturers objected to our proposal to apply emission-related 
warranty requirements to components for which a consumer pays for an 
extended performance warranty. We agree with the point raised by the 
manufacturers that these service contracts do not necessarily imply 
that the part should last longer, but rather that the manufacturer (or 
a third-party provider) has made a calculation regarding the financial 
and customer service benefits of offering contracts that provide free 
or reduced-cost coverage for certain components after collecting an up-
front charge. We will remove this provision across all engine 
categories.
5. Exemption for Staged Assembly
    Some manufacturers pointed out that they were facing difficulties 
with production processes that required them to ship nearly completed 
engines to one or more different facilities for final assembly. Without 
an exemption, this would violate the applicable prohibited acts, since 
it involves the introduction into commerce an engine that is not in its 
certified configuration. To address this concern, we have adopted an 
exemption that allows manufacturers to assemble engines at multiple 
facilities, as long as they maintain control of the engines at all 
times before final assembly. Manufacturers would need to

[[Page 40425]]

request approval for such an arrangement. EPA approval may be 
conditioned on the manufacturer taking reasonable additional steps to 
ensure that engines end up in their certified configuration. This 
exemption applies to all the engine categories that are subject to 40 
CFR part 1068 (as described in the next section), and to locomotives 
and marine diesel engines.

B. Nonroad General Compliance Provisions (40 CFR Part 1068)

    In addition to the changing test procedures described above, we are 
making various changes to the general compliance provisions in 40 CFR 
part 1068, which currently applies to land-based nonroad diesel 
engines, recreational vehicles, and nonroad spark-ignition engines over 
19 kW. We encourage manufacturers of other engines to take note of 
these changes, since we intend eventually to apply the provisions of 
part 1068 to all engines subject to EPA emission standards.
    There was extensive comment related to the existing provisions in 
Sec.  1068.260 related to the exemption that allows engine 
manufacturers to arrange for shipment of aftertreatment devices 
separately from engines that are intended to rely on aftertreatment. 
Commenters suggested that we relax some of the provisions that were 
intended to prevent noncompliance. We continue to believe the 
provisions adopted in Sec.  1068.260 are appropriate for nonroad 
engines. The more extensive oversight and control mechanisms are 
important to ensuring that engines are assembled correctly, since there 
are so many possible equipment manufacturers and so many different 
business relationships among companies. Given that we are requiring 
engine manufacturers to include the cost of aftertreatment components 
in the price of the engine, we believe it is implicitly clear that the 
engine manufacturer is responsible for shipping costs, so we have 
removed the proposal to restate that in the regulations. We are making 
three other adjustments to the proposal. First, we are removing the 
requirement for engine manufacturers to arrange for direct shipment of 
aftertreatment components from the supplier to the equipment 
manufacturer, since a third party may appropriately be involved to 
produce system assemblies for integration into equipment. Second, we 
are adding a paragraph to clarify that integrated manufacturers can 
meet their auditing requirements by maintaining a database for matching 
up engines with the appropriate aftertreatment components. Third, we 
are adopting the staged-assembly exemption, as described above, which 
would streamline the production process for integrated engine and 
equipment manufacturers and address a wide range of production 
scenarios in addition to separate shipment of aftertreatment 
components.
    The changes to part 1068 include several other minor adjustments 
and corrections. These changes are described in the Technical Support 
Document.

C. Land-Based Nonroad Diesel Engines (40 CFR Parts 89 and 1039)

    We recently adopted a new tier of emission standards for nonroad 
diesel engines, codifying these standards in 40 CFR part 1039. This 
rulemaking led us to make several regulatory changes to the existing 
tiers of standards for these engines in 40 CFR part 89. In cases where 
we discovered the need for changes after publishing the proposed rule, 
but we did not make those changes to part 89 in the final rule out of 
concern that the public had not had an opportunity for comment. 
Similarly, we are adopting some adjustments to part 1039, based on 
information that surfaced late in that rulemaking. See the Technical 
Support Document for a complete discussion of the rulemaking changes 
for these engines.
    We proposed to add a constraint for averaging, banking, and trading 
to prevent manufacturers from including credits earned in California or 
another state if there would ever be a situation in which manufacturers 
would be making engines with lower emissions to meet more stringent 
state standards or to earn emission credits under the state program. In 
the case of nonroad diesel engines, California has adopted our Tier 4 
standards without an emission-credit program that does not involve 
California-specific credit calculations. The proposed provision would 
therefore have no effect for the foreseeable future. We have decided 
not to adopt the proposed provision, but expect to pursue this if 
California adopts more stringent standards or creates a California-
specific emission-credit program for these engines (see 40 CFR 
1051.701(d)(4)).

D. Marine Diesel Engines (40 CFR Part 94)

    We are making several changes to our marine diesel engine program, 
in 40 CFR part 94. These changes are intended to clarify several 
aspects of the program. These changes are described in detail in the 
Technical Support Document. This discussion also elaborates on our 
interpretation of various provisions. For example, we describe how to 
determine which standards apply to amphibious vehicles and hovercraft. 
We also explain how we interpret the term ``marine diesel engine'' with 
respect to auxiliary applications in which it may not be clear whether 
the engine is ``installed'' on the vessel or not.

E. Small Nonroad Spark-Ignition Engines (40 CFR Part 90)

    We are adding a new Sec.  90.913 to better define the 
responsibilities for manufacturers choosing to certify their engines 
below 19 kW to the emission standards for Large SI engines in 40 CFR 
part 1048. We are also revising Sec.  90.1 to cross-reference 
provisions in parts 86, 1048, and 1051 that allow highway motorcycle 
engines and nonroad engines above 19 kW to meet the requirements in 
part 90 under certain conditions.
    We are making several amendments to the test procedures, such as 
improving calculations for humidity corrections, adding clarifying 
language, and adjusting reporting provisions. We are also updating 
current references to test procedures in 40 CFR part 86 by pointing 
instead to 40 CFR part 1065. In addition, we are making a variety of 
minor corrections and clarifications. See the Technical Support 
Document for a discussion of all these changes.

F. Marine Spark-Ignition Engines (40 CFR Part 91)

    We are adopting only minimal changes for Marine SI engines in 40 
CFR part 91. These changes are primarily to update current references 
to test procedures in 40 CFR part 86 by pointing instead to 40 CFR part 
1065. We are also updating various definitions, as described in Section 
II.A. Manufacturers raised some issues in the comment period that 
resulted in further minor corrections and adjustments for the final 
rule. We also corrected equations for typographical errors.

G. Large Nonroad Spark-Ignition Engines (40 CFR Part 1048)

    We adopted emission standards for nonroad spark-ignition engines 
over 19 kW in November 2002 (67 FR 68242). The regulations in 40 CFR 
part 1048 were our first attempt to draft emission-control regulations 
in plain-language format. In the recent final rule for nonroad diesel 
engines, we went through a similar process, including extensive 
interaction with a different set of manufacturers. This process led us 
to adopt regulatory provisions in 40 CFR part 1039 that differ somewhat 
from those in part 1048. Since the process of meeting standards, 
applying for

[[Page 40426]]

certificates, and complying with other emission-related requirements 
has a lot of commonality across programs, we have a strong interest in 
adopting consistent provisions and uniform terminology where possible. 
As a result, we are making extensive changes in part 1048 to align with 
the regulations in part 1039.
    For discussion of these changes, see the Technical Support 
Document.

H. Recreational Vehicles (40 CFR Part 1051)

    We adopted emission standards for recreational vehicles in November 
2002 (67 FR 68242). The regulations in 40 CFR part 1051 were our first 
attempt to draft emission-control regulations in plain-language format. 
In the recent final rule for nonroad diesel engines, we went through a 
similar process, including extensive interaction with a different set 
of manufacturers. This process led us to adopt regulatory provisions in 
40 CFR part 1039 that differ from those in part 1051. Since the process 
of meeting standards, applying for certificates, and complying with 
other emission-related requirements has a lot of commonality across 
programs, we have a strong interest in adopting consistent provisions 
and uniform terminology as much as possible. As a result, we are making 
extensive changes in part 1051 to align with the regulations in part 
1039. These provisions are all discussed in more detail in the 
Technical Support Document.
    We proposed to add a constraint for averaging, banking, and trading 
to prevent manufacturers from including credits earned in California or 
another state if there would ever be a situation in which manufacturers 
would be making engines with lower emissions to meet more stringent 
state standards or to earn emission credits under the state program. We 
are adopting this provision in the final rule to require exclusion of 
California sales from federal ABT calculations if a company is subject 
to more stringent state standards, or if a company generates or uses 
emissions credits to show that it meets California standards. This 
provision is necessary to prevent double-counting of emission credits. 
In the case of recreational vehicles, California adopted emission 
standards that predate the EPA rulemaking. The California emission 
standards are based on a similar technology assessment, but are in a 
different form. For example, California specifies different numerical 
standards that apply to hydrocarbon emissions only, while EPA's 
standards apply to HC+NOx emissions. Given the difficulty in 
comparing these two sets of standards, we are making the judgment that, 
for the purposes of ABT calculations, California's current exhaust 
emission standards are equivalent to the EPA standards. Under the 
current requirements, companies would therefore exclude their 
California products from federal ABT calculations only if those 
products generate or use emission credits under the California program. 
If California adopts new standards for recreational vehicles, we will 
again make a judgment regarding the relative stringency of the two 
programs for ABT purposes.

I. Locomotives (40 CFR Part 92)

    We proposed a variety of changes for our locomotive regulations in 
40 CFR part 92 to correct various technical references and 
typographical errors. We are finalizing those changes. We are also 
finalizing other changes in response to comments. The large majority of 
the comments received regarding locomotives came from the Engine 
Manufacturers Association (EMA). See the Technical Support Document for 
additional information. In addition to the changes being finalized, we 
are also publishing the following clarifications in response to public 
comments.
    EMA asked that remanufacturers be allowed to limit the practice of 
not replacing every power assembly with remanufactured power assemblies 
at the time of engine remanufacture. Remanufacturers already can limit 
this practice just as original manufacturers limit the parts that are 
used in their locomotives. In fact, remanufacturers would be expected 
to limit this practice to only those cases in which they can be certain 
that the previously used power assembly will not cause an engine to 
exceed an emission standard. By allowing an engine to be remanufactured 
under its certificate, the remanufacturer is assuming responsibility 
for the emission performance of that remanufactured engine. We define 
remanufactured locomotives to be ``new'', and the certificate holder 
has the same responsibilities as the manufacturer of a freshly 
manufactured locomotive. The remanufacturer is thus expected to 
maintain some degree of control over the remanufacturing process to 
ensure that the remanufactured locomotive. For example, the 
remanufacturer might limit the certificate to only those engines 
remanufactured by installers that has been properly trained. It must be 
noted, however, that while certificate holders have responsibility for 
the emission performance of locomotives remanufactured under their 
certificates, 40 CFR 92.209 also assigns responsibility to others 
involved in the remanufacturing process.
    EMA asked that EPA not use the term ``offer for sale'' in the 
prohibited acts (40 CFR 92.1103). They are concerned that this would be 
problematic because locomotives are generally manufactured only after a 
sales agreement has been completed. The manufacturer offers to 
manufacture and sell a locomotive at least several months before it 
actually has obtained a certificate of conformity for the locomotive. 
Given this confusion, we are clarifying that EPA does not interpret the 
phrase ``offer to sell'' to apply to products that have not yet been 
manufactured (or remanufactured, as applicable).
    EMA asked that EPA exempt replacement engines as we do in other 
nonroad engine programs. However, such exemption is not necessary with 
locomotives. Long after the manufacturer has stopped manufacturing 
brand new engines, that manufacturer (along with other remanufacturers) 
will be certifying remanufacturing systems. Thus, we believe that the 
cases in which a brand new engine will be needed will be rare. 
Nevertheless, we are finalizing a regulatory change in 40 CFR 92.204 to 
explicitly allow manufacturers to include freshly manufactured 
locomotive engines in the same engine family as remanufactured 
locomotives. We believe that this will resolve the issue, since 
manufacturers would merely need to certify a remanufacturing system for 
each engine it manufactures.
    Finally, we are adopting a provision that will allow manufacturers 
to certify locomotives that have total power less than 750 kW. This 
provision will allow manufacturers of hybrid locomotives to certify 
under 40 CFR part 92. EMA commented that if we do this, we should 
specify test procedures and duty-cycle weightings for such hybrids. We 
agree that this would be appropriate in the long term, but do not 
believe that this rulemaking would be the proper place for such 
provisions. Instead, we expect to rely on the testing and calculation 
flexibility of 40 CFR 92.207 and 92.132(e) to certify hybrids on a 
case-by-case basis.

J. Highway Engines and Vehicles (40 CFR Parts 85 and 86)

    Most of the changes we are adopting in parts 85 and 86 apply 
uniquely to different types of vehicles or engines. We are, however, 
adopting changes to the program for Independent Commercial Importers 
that affect all the different applications. The Technical

[[Page 40427]]

Support Document describes how we are limiting the importation of 
products where the applicable standards are based on the year of 
original production. We continue to allow unlimited importation of 
products where the applicable standards are based on the year of 
modification.
    The following paragraphs provide an overview of the changes for 
each type of engine or vehicle. See the Technical Support Document for 
a more detailed discussion of these changes.
1. Light-Duty Vehicles
    For light-duty vehicles, we are adopting a variety of 
clarifications and corrections, especially related to test procedures.
2. Highway Motorcycles
    For highway motorcycles, we are correcting fuel specifications, 
clarifying the requirements related to engine labels, fixing the 
provisions related to using nonroad certificates for highway 
motorcycles below 50 cc (consistent with similar changes in other 
programs), and making a variety of other minor corrections.
3. Heavy-Duty Highway Engines
    As discussed above, we are adopting the lab-testing and field-
testing specifications in part 1065 for heavy-duty highway engines, 
including both diesel and Otto-cycle engines. These procedures replace 
those currently published in 40 CFR part 86, subpart N.
    We proposed to complete the migration of heavy-duty highway test 
procedures to part 1065 by the 2008 model year. Manufacturers pointed 
out that it would be most appropriate to move this date back to 2010 to 
correspond with the implementation of the new emission standards in 
that year. We agree that it would be appropriate to make this 
transition over several model years to fully migrate to part 1065, no 
later than model year 2010. Manufacturers do not need to conduct new 
testing if they are able to use carryover data, but any new testing for 
2010 and later model years must be done using the part 1065 procedures. 
Migrating heavy-duty highway engines to the part 1065 procedures allows 
us to include all the testing-related improvements in the HD2007 rule, 
including those we have adopted through guidance.\2\ In addition, part 
1065 incorporates revisions based on updated procedures for sampling 
low concentrations of PM.
---------------------------------------------------------------------------

    \2\ ``Guidance Regarding Test Procedures for Heavy-Duty On-
Highway and Non-Road Engines,'' December 3, 2002.
---------------------------------------------------------------------------

    Another question was raised about how EPA should conduct testing 
during this transition stage. We intend to incorporate near-term 
upgrades that would make our testing facilities capable of meeting the 
requirements in part 1065. Most of the testing methods in part 1065 
result in better measurements and should therefore not pose problems, 
even if manufacturers based their certification on the test procedures 
specified in part 86. Three exceptions to this include the steps for 
mapping an engine, denormalizing test cycles, and evaluating cycle-
validation criteria. Changing the specified procedure for these three 
items would involve different engine operation that could cause an 
engine to have higher or lower emission levels.For all other 
parameters, the new procedures would be equivalent, or would give more 
accurate or more precise results. We are therefore specifying that we 
will follow the manufacturer's procedures for these three items related 
to engine operation, but will otherwise consider our tests valid if we 
use procedures from either part 86 or part 1065, regardless of the 
procedures used by the manufacturer.
    EMA responded to our request for comment related to a provision 
that would allow engine manufacturers to ship certified engines without 
applicable aftertreatment components, while providing for separate 
shipment of those components to equipment manufacturers. EMA commented 
that such a provision would be appropriate, and that it should be set 
up to require either that the component cost be included in the price 
of the engine, or auditing requirements for engine manufacturers, but 
not both, since the equipment manufacturer has enough incentive to make 
the final installation without additional oversight. We agree with 
manufacturers that these more flexible arrangements are appropriate for 
the prevailing business relationships for heavy-duty highway engines. 
There are far fewer manufacturers producing heavy-duty trucks and buses 
than nonroad equipment. Engine manufacturers are therefore expected to 
be able to maintain control with an approach that requires them either 
to include the price of the aftertreatment in the engine price or to 
conduct periodic audits of vehicle manufacturers, but not both. In the 
periodic audit we require manufacturers to confirm the number of 
aftertreatment component shipped is sufficient for the applicable 
vehicle production. This confirmation is intended to show that the 
vehicle manufacturers have purchasing and manufacturing processes in 
place to ensure that they are ordering and receiving enough 
aftertreatment components and that each vehicles is equipped with the 
correct components. To reduce the risk of noncompliance where the 
engine and aftertreatment components are not priced together, we 
require that engine manufacturers have a written confirmation that the 
vehicle manufacturer has ordered the appropriate aftertreatment before 
shipping engines without the otherwise required aftertreatment 
components.
    We are adopting a test-related provision that was described in the 
proposal. We requested comment on approaches to address the concern 
that some engines experience significant overspeed excursions when 
following the proposed approach to defining maximum test speed and 
denormalizing duty cycles. As described in the Technical Support 
Document, we are finalizing a provision to define maximum test speed at 
the highest speed point at which engines are expected to operate in 
use.

III. Public Participation

    In the proposed rule, we invited public participation in a public 
hearing, a public workshop, and a comment period for written comments. 
No one responded to indicate in interest in the public hearing, but we 
held the public workshop to talk through a wide range of issues. We 
also received written comments from about 20 organizations, mostly 
representing manufacturers. Several principle issues raised by 
commenters are described in the individual sections above. The Final 
Technical Support Document addresses the full range of comments.

IV. Statutory and Executive Order Reviews

A. Executive Order 12866: Regulatory Planning and Review

    Under Executive Order 12866 the Agency must determine whether the 
regulatory action is ``significant'' and therefore subject to review by 
the Office of Management and Budget (OMB) and the requirements of this 
Executive Order. The Executive Order defines a ``significant regulatory 
action'' as any regulatory action that is likely to result in a rule 
that may:
     Have an annual effect on the economy of $100 million or 
more or adversely affect in a material way the economy, a sector of the 
economy, productivity, competition, jobs, the environment, public 
health or safety, or State, Local, or Tribal governments or 
communities;

[[Page 40428]]

     Create a serious inconsistency or otherwise interfere with 
an action taken or planned by another agency;
     Materially alter the budgetary impact of entitlements, 
grants, user fees, or loan programs, or the rights and obligations of 
recipients thereof; or
     Raise novel legal or policy issues arising out of legal 
mandates, the President's priorities, or the principles set forth in 
the Executive Order.
    The Office of Management and Budget reviewed this rule under the 
provisions of Executive Order 12866. Any new costs associated with this 
rule will be minimal. In addition, some of the changes will 
substantially reduce the burden associated with testing, as described 
in the Regulatory Support Document.

B. Paperwork Reduction Act

    This rule does not include any new collection requirements, as it 
merely revises the measurement methods and makes a variety of technical 
amendments to existing programs.

C. Regulatory Flexibility Act

    EPA has determined that it is not necessary to prepare a regulatory 
flexibility analysis in connection with this final rule.
    For purposes of assessing the impacts of this final rule on small 
entities, a small entity is defined as: (1) A small business as defined 
in the underlying rulemakings for each individual category of engines; 
(2) a small governmental jurisdiction that is a government of a city, 
county, town, school district or special district with a population of 
less than 50,000; and (3) a small organization that is any not-for-
profit enterprise which is independently owned and operated and is not 
dominant in its field.
    After considering the economic impacts of this final rule on small 
entities, EPA has concluded that this action will not have a 
significant economic impact on a substantial number of small entities. 
The small entities directly regulated by this rule are small businesses 
that produce nonroad engines. We have determined that no small entities 
will be negatively affected as a result of this rule. This rule merely 
revises the measurement methods and makes a variety of technical 
amendments to existing programs. This rule, therefore, does not require 
a regulatory flexibility analysis.
    Although this rule will not have a significant economic impact on a 
substantial number of small entities, EPA nonetheless has tried to 
reduce the impact of this rule on small entities. For example, most of 
the changes clarify existing requirements, which will reduce the time 
needed to comply, and added flexibility, which may allow for a simpler 
effort to comply.

D. Unfunded Mandates Reform Act

    Title II of the Unfunded Mandates Reform Act of 1995 (UMRA), Public 
Law. 104-4, establishes requirements for federal agencies to assess the 
effects of their regulatory actions on state, local, and tribal 
governments and the private sector. Under section 202 of the UMRA, EPA 
generally must prepare a written statement, including a cost-benefit 
analysis, for proposed and final rules with ``federal mandates'' that 
may result in expenditures to state, local, and tribal governments, in 
the aggregate, or to the private sector, of $100 million or more in any 
one year. Before promulgating an EPA rule for which a written statement 
is needed, section 205 of the UMRA generally requires EPA to identify 
and consider a reasonable number of regulatory alternatives and adopt 
the least costly, most cost-effective, or least burdensome alternative 
that achieves the objectives of the rule. The provisions of section 205 
do not apply when they are inconsistent with applicable law. Moreover, 
section 205 allows EPA to adopt an alternative other than the least 
costly, most cost-effective, or least burdensome alternative if the 
Administrator publishes with the final rule an explanation of why that 
alternative was not adopted.
    Before EPA establishes any regulatory requirements that may 
significantly or uniquely affect small governments, including tribal 
governments, it must have developed under section 203 of the UMRA a 
small government agency plan. The plan must provide for notifying 
potentially affected small governments, enabling officials of affected 
small governments to have meaningful and timely input in the 
development of EPA regulatory proposals with significant federal 
intergovernmental mandates, and informing, educating, and advising 
small governments on compliance with the regulatory requirements.
    This rule contains no federal mandates for state, local, or tribal 
governments as defined by the provisions of Title II of the UMRA. The 
rule imposes no enforceable duties on any of these governmental 
entities. Nothing in the rule significantly or uniquely affects small 
governments. We have determined that this rule contains no federal 
mandates that may result in expenditures of more than $100 million to 
the private sector in any single year. This rule merely revises the 
measurement methods and makes a variety of technical amendments to 
existing programs. The requirements of UMRA therefore do not apply to 
this action.

E. Executive Order 13132: Federalism

    Executive Order 13132, entitled ``Federalism'' (64 FR 43255, August 
10, 1999), requires EPA to develop an accountable process to ensure 
``meaningful and timely input by State and local officials in the 
development of regulatory policies that have federalism implications.'' 
``Policies that have federalism implications'' is defined in the 
Executive Order to include regulations that have ``substantial direct 
effects on the states, on the relationship between the national 
government and the States, or on the distribution of power and 
responsibilities among the various levels of government.''
    Under Section 6 of Executive Order 13132, EPA may not issue a 
regulation that has federalism implications, that imposes substantial 
direct compliance costs, and that is not required by statute, unless 
the Federal government provides the funds necessary to pay the direct 
compliance costs incurred by State and local governments, or EPA 
consults with State and local officials early in the process of 
developing the proposed regulation. EPA also may not issue a regulation 
that has federalism implications and that preempts State law, unless 
the Agency consults with State and local officials early in the process 
of developing the proposed regulation.
    Section 4 of the Executive Order contains additional requirements 
for rules that preempt State or local law, even if those rules do not 
have federalism implications (i.e., the rules will not have substantial 
direct effects on the States, on the relationship between the national 
government and the states, or on the distribution of power and 
responsibilities among the various levels of government). Those 
requirements include providing all affected State and local officials 
notice and an opportunity for appropriate participation in the 
development of the regulation. If the preemption is not based on 
express or implied statutory authority, EPA also must consult, to the 
extent practicable, with appropriate State and local officials 
regarding the conflict between State law and Federally protected 
interests within the agency's area of regulatory responsibility.
    This rule does not have federalism implications. It will not have 
substantial direct effects on the States, on the relationship between 
the national government and the States, or on the

[[Page 40429]]

distribution of power and responsibilities among the various levels of 
government, as specified in Executive Order 13132.

F. Executive Order 13175: Consultation and Coordination With Indian 
Tribal Governments

    Executive Order 13175, entitled ``Consultation and Coordination 
with Indian Tribal Governments'' (65 FR 67249, November 6, 2000), 
requires EPA to develop an accountable process to ensure ``meaningful 
and timely input by tribal officials in the development of regulatory 
policies that have tribal implications.''
    This rule does not have tribal implications as specified in 
Executive Order 13175. This rule will be implemented at the Federal 
level and impose compliance costs only on engine manufacturers and ship 
builders. Tribal governments will be affected only to the extent they 
purchase and use equipment with regulated engines. Thus, Executive 
Order 13175 does not apply to this rule.

G. Executive Order 13045: Protection of Children From Environmental 
Health and Safety Risks

    Executive Order 13045, ``Protection of Children from Environmental 
Health Risks and Safety Risks'' (62 FR 19885, April 23, 1997) applies 
to any rule that (1) is determined to be ``economically significant'' 
as defined under Executive Order 12866, and (2) concerns an 
environmental health or safety risk that EPA has reason to believe may 
have a disproportionate effect on children. If the regulatory action 
meets both criteria, Section 5-501 of the Order directs the Agency to 
evaluate the environmental health or safety effects of the planned rule 
on children, and explain why the planned regulation is preferable to 
other potentially effective and reasonably feasible alternatives 
considered by the Agency.
    This rule is not subject to the Executive Order because it does not 
involve decisions on environmental health or safety risks that may 
disproportionately affect children.

H. Executive Order 13211: Actions That Significantly Affect Energy 
Supply, Distribution, or Use

    This rule is not a ``significant energy action'' as defined in 
Executive Order 13211, ``Actions Concerning Regulations That 
Significantly Affect Energy Supply, Distribution, or Use'' (66 FR 28355 
(May 22, 2001)), because it is not likely to have a significant effect 
on the supply, distribution, or use of energy.

I. National Technology Transfer Advancement Act

    Section 12(d) of the National Technology Transfer and Advancement 
Act of 1995 (``NTTAA''), Public Law 104-113, section 12(d) (15 U.S.C. 
272 note) directs EPA to use voluntary consensus standards in its 
regulatory activities unless doing so would be inconsistent with 
applicable law or otherwise impractical. Voluntary consensus standards 
are technical standards (e.g., materials specifications, test methods, 
sampling procedures, and business practices) that are developed or 
adopted by voluntary consensus standards bodies. NTTAA directs EPA to 
provide Congress, through OMB, explanations when the Agency decides not 
to use available and applicable voluntary consensus standards.
    This rule involves technical standards. The International 
Organization for Standardization (ISO) has a voluntary consensus 
standard that can be used to test engines. However, the test procedures 
in this final rule reflect a level of development that goes 
substantially beyond the ISO or other published procedures. The 
procedures incorporate new specifications for transient emission 
measurements, measuring PM emissions at very low levels, measuring 
emissions using field-testing procedures. The procedures we adopt in 
this rule will form the working template for ISO and national and state 
governments to define test procedures for measuring engine emissions. 
As such, we have worked extensively with the representatives of other 
governments, testing organizations, and the affected industries.

J. Congressional Review Act

    The Congressional Review Act, 5 U.S.C. 801 et seq., as added by the 
Small Business Regulatory Enforcement Fairness Act of 1996, generally 
provides that before a rule may take effect, the agency promulgating 
the rule must submit a rule report, which includes a copy of the rule, 
to each House of the Congress and to the Comptroller General of the 
United States. EPA will submit a report containing this rule and other 
required information to the U.S. Senate, the U.S. House of 
Representatives, and the Comptroller General of the United States prior 
to publication of the rule in the Federal Register. This rule is not a 
``major rule'' as defined by 5 U.S.C. 804(2).

V. Statutory Provisions and Legal Authority

    Statutory authority for the engine controls adopted in this rule is 
in 42 U.S.C. 7401--7671q.

List of Subjects

40 CFR Part 85

    Confidential business information, Imports, Labeling, Motor vehicle 
pollution, Reporting and recordkeeping requirements, Research, 
Warranties.

40 CFR Part 86

    Administrative practice and procedure, Confidential business 
information, Labeling, Motor vehicle pollution, Reporting and 
recordkeeping requirements.

40 CFR Part 89

    Environmental protection, Administrative practice and procedure, 
Confidential business information, Imports, Labeling, Motor vehicle 
pollution, Reporting and recordkeeping requirements, Research, Vessels, 
Warranties.

40 CFR Part 90

    Environmental protection, Administrative practice and procedure, 
Air pollution control, Confidential business information, Imports, 
Labeling, Reporting and recordkeeping requirements, Research, 
Warranties.

40 CFR Part 91

    Environmental protection, Administrative practice and procedure, 
Air pollution control, Confidential business information, Imports, 
Labeling, Penalties, Reporting and recordkeeping requirements, 
Warranties

40 CFR Part 92

    Administrative practice and procedure, Air pollution control, 
Confidential business information, Imports, Labeling, Railroads, 
Reporting and recordkeeping requirements, Warranties

40 CFR Part 94

    Environmental protection, Administrative practice and procedure, 
Air pollution control, Confidential business information, Imports, 
Penalties, Reporting and recordkeeping requirements, Vessels, 
Warranties.

40 CFR Parts 1039, 1048, and 1051

    Environmental protection, Administrative practice and procedure, 
Air pollution control, Confidential business information, Imports, 
Labeling, Penalties, Reporting and recordkeeping requirements, 
Warranties.

[[Page 40430]]

40 CFR Part 1065

    Environmental protection, Administrative practice and procedure, 
Incorporation by reference, Reporting and recordkeeping requirements, 
Research.

40 CFR Part 1068

    Environmental protection, Administrative practice and procedure, 
Confidential business information, Imports, Motor vehicle pollution, 
Penalties, Reporting and recordkeeping requirements, Warranties.

    Dated: June 3, 2005.
Stephen L. Johnson,
Administrator.

0
For the reasons set out in the preamble, title 40, chapter I of the 
Code of Federal Regulations is amended as follows:

PART 85--CONTROL OF AIR POLLUTION FROM MOBILE SOURCES

0
1. The authority citation for part 85 continues to read as follows:

    Authority: 42 U.S.C. 7401-7671q.


0
2. Section 85.1502 is amended by revising paragraph (a)(14) to read as 
follows:


Sec.  85.1502  Definitions.

    (a) * * *
    (14) United States. United States includes the States, the District 
of Columbia, the Commonwealth of Puerto Rico, the Commonwealth of the 
Northern Mariana Islands, Guam, American Samoa, and the U.S. Virgin 
Islands.
* * * * *

0
3. Section 85.1503 is amended by revising the section heading and 
adding paragraphs (c), (d), and (e) to read as follows:


Sec.  85.1503  General requirements for importation of nonconforming 
vehicles and engines.

* * * * *
    (c) In any one certificate year (e.g., the current model year), an 
ICI may finally admit no more than the following numbers of 
nonconforming vehicles or engines into the United States under the 
provisions of Sec.  85.1505 and Sec.  85.1509, except as allowed by 
paragraph (e) of this section:
    (1) 5 heavy-duty engines.
    (2) A total of 50 light-duty vehicles, light-duty trucks, and 
medium-duty passenger vehicles.
    (3) 50 highway motorcycles.
    (d) For ICIs owned by a parent company, the importation limits in 
paragraph (c) of this section include importation by the parent company 
and all its subsidiaries.
    (e) An ICI may exceed the limits outlined paragraphs (c) and (d) of 
this section, provided that any vehicles/engines in excess of the 
limits meet the emission standards and other requirements outlined in 
the provisions of Sec.  85.1515 for the model year in which the motor 
vehicle/engine is modified (instead of the emission standards and other 
requirements applicable for the OP year of the vehicle/engine).

0
4. Section 85.1513 is amended by revising paragraph (d) to read as 
follows:


Sec.  85.1513  Prohibited acts; penalties.

* * * * *
    (d) Any importer who violates section 203(a)(1) of the Act is 
subject to a civil penalty under section 205 of the Act of not more 
than $32,500 for each vehicle or engine subject to the violation. In 
addition to the penalty provided in the Act, where applicable, under 
the exemption provisions of Sec.  85.1511(b), or under Sec.  85.1512, 
any person or entity who fails to deliver such vehicle or engine to the 
U.S. Customs Service is liable for liquidated damages in the amount of 
the bond required by applicable Customs laws and regulations.
* * * * *

0
5. Section 85.1515 is amended by revising paragraphs (c)(1) and (c)(2) 
to read as follows:


Sec.  85.1515  Emission standards and test procedures applicable to 
imported nonconforming motor vehicles and motor vehicle engines.

* * * * *
    (c)(1) Nonconforming motor vehicles or motor vehicle engines of 
1994 OP model year and later conditionally imported pursuant to Sec.  
85.1505 or Sec.  85.1509 shall meet all of the emission standards 
specified in 40 CFR part 86 for the OP year of the vehicle or motor 
vehicle engine. At the option of the ICI, the nonconforming motor 
vehicle may comply with the emissions standards in 40 CFR 86.1708-99 or 
86.1709-99, as applicable to a light-duty vehicle or light light-duty 
truck, in lieu of the otherwise applicable emissions standards 
specified in 40 CFR part 86 for the OP year of the vehicle. The 
provisions of 40 CFR 86.1710-99 do not apply to imported nonconforming 
motor vehicles. The useful life specified in 40 CFR part 86 for the OP 
year of the motor vehicle or motor vehicle engine is applicable where 
useful life is not designated in this subpart.
    (2)(i) Nonconforming light-duty vehicles and light light-duty 
trucks(LDV/LLDTs) originally manufactured in OP years 2004, 2005 or 
2006 must meet the FTP exhaust emission standards of bin 9 in Tables 
S04-1 and S04-2 in 40 CFR 86.1811-04 and the evaporative emission 
standards for light-duty vehicles and light light-duty trucks specified 
in 40 CFR 86.1811-01(e)(5).
    (ii) Nonconforming LDT3s and LDT4s (HLDTs) and medium-duty 
passenger vehicles (MDPVs) originally manufactured in OP years 2004 
through 2006 must meet the FTP exhaust emission standards of bin 10 in 
Tables S04-1 and S04-2 in 40 CFR 86.1811-04 and the applicable 
evaporative emission standards specified in 40 CFR 86.1811-04(e)(5). 
For 2004 OP year HLDTs and MDPVs where modifications commence on the 
first vehicle of a test group before December 21, 2003, this 
requirement does not apply to the 2004 OP year. ICIs opting to bring 
all of their 2004 OP year HLDTs and MDPVs into compliance with the 
exhaust emission standards of bin 10 in Tables S04-1 and S04-2 in 40 
CFR 86.1811-04 , may use the optional higher NMOG values for their 
2004-2006 OP year LDT2s and 2004-2008 LDT4s.
    (iii) Nonconforming LDT3s and LDT4s (HLDTs) and medium-duty 
passenger vehicles (MDPVs) originally manufactured in OP years 2007 and 
2008 must meet the FTP exhaust emission standards of bin 8 in Tables 
S04-1 and S04-2 in 40 CFR 86.1811-04 and the applicable evaporative 
standards specified in 40 CFR 86.1811-04(e)(5).
    (iv) Nonconforming LDV/LDTs originally manufactured in OP years 
2007 and later and nonconforming HLDTs and MDPVs originally 
manufactured in OP years 2009 and later must meet the FTP exhaust 
emission standards of bin 5 in Tables S04-1 and S04-2 in 40 CFR 
86.1811-04, and the evaporative standards specified in 40 CFR 
86.1811(e)(1) through (e)(4).
    (v) ICIs are exempt from the Tier 2 and the interim non-Tier2 
phase-in intermediate percentage requirements for exhaust, evaporative, 
and refueling emissions described in 40 CFR 86.1811-04.
    (vi) In cases where multiple standards exist in a given model year 
in 40 CFR part 86 due to phase-in requirements of new standards, the 
applicable standards for motor vehicle engines required to be certified 
to engine-based standards are the least stringent standards applicable 
to the engine type for the OP year.
* * * * *

0
6. Section 85.1713 is added to subpart R to read as follows:


Sec.  85.1713  Delegated-assembly exemption.

    The provisions of this section apply for manufacturers of heavy-
duty

[[Page 40431]]

highway engines. (a) Shipping an engine separately from an 
aftertreatment component that you have specified as part of its 
certified configuration will not be a violation of the prohibitions in 
Clean Air Act section 203 (42 U.S.C. 7522), if you follow the 
provisions of paragraph (b) or (c) of this section.
    (b) If you include the cost of all aftertreatment components in the 
cost of the engine and ship the aftertreatment components directly to 
the vehicle manufacturer, or arrange for separate shipment by the 
component manufacturer to the vehicle manufacturer, you must meet all 
the following conditions:
    (1) Apply for and receive a certificate of conformity for the 
engine and its emission-control system before shipment.
    (2) Provide installation instructions in enough detail to ensure 
that the engine will be in its certified configuration if someone 
follows these instructions.
    (3) Have a contractual agreement with a vehicle manufacturer 
obligating the vehicle manufacturer to complete the final assembly of 
the engine so it is in its certified configuration when installed in 
the vehicle. This agreement must also obligate the vehicle manufacturer 
to provide the affidavits required under paragraph (b)(4) of this 
section.
    (4) Take appropriate additional steps to ensure that all engines 
will be in their certified configuration when installed by the vehicle 
manufacturer. At a minimum, you must obtain annual affidavits from 
every vehicle manufacturer to whom you sell engines under this section. 
Include engines that you sell through distributors or dealers. The 
affidavits must list the part numbers of the aftertreatment devices 
that vehicle manufacturers install on each engine they purchase from 
you under this section.
    (5) Describe in your application for certification how you plan to 
use the provisions of this section and any steps you plan to take under 
paragraph (b)(3) of this section.
    (6) Keep records to document how many engines you produce under 
this exemption. Also, keep records to document your contractual 
agreements under paragraph (b)(3) of this section. Keep all these 
records for five years after the end of the model year and make them 
available to us upon request.
    (7) Make sure the engine has the emission control information label 
we require under the standard-setting part.
    (c) If you do not include the cost of all aftertreatment components 
in the cost of the engine, you must meet all the conditions described 
in paragraphs (b)(1) through (7) of this section, with the following 
additional provisions:
    (1) The contractual agreement described in paragraph (b)(3) of this 
section must include a commitment that the vehicle manufacturer will do 
the following things:
    (i) Separately purchase the aftertreatment components you have 
specified in your application for certification.
    (ii) Perform audits as described in paragraph (c)(3) of this 
section.
    (2) Before you ship an engine under the provisions of this 
paragraph (c), you must have written confirmation that the vehicle 
manufacturer has ordered the appropriate aftertreatment components.
    (3) You must audit vehicle manufacturers as follows:
    (i) If you sell engines to 16 or more vehicle manufacturers under 
the provisions of this section, you must annually audit four vehicle 
manufacturers to whom you sell engines under this section. To select 
individual vehicle manufacturers, divide all the affected vehicle 
manufacturers into quartiles based on the number of engines they buy 
from you; select a single vehicle manufacturer from each quartile each 
model year. Vary the vehicle manufacturers you audit from year to year, 
though you may repeat an audit in a later model year if you find or 
suspect that a particular vehicle manufacturer is not properly 
installing aftertreatment devices.
    (ii) If you sell engines to fewer than 16 vehicle manufacturers 
under the provisions of this section, set up a plan to audit each 
vehicle manufacturer on average once every four model years.
    (iii) Starting with the 2014 model year, if you sell engines to 
fewer than 40 vehicle manufacturers under the provisions of this 
section, you may ask us to approve a reduced auditing rate. We may 
approve an alternate plan that involves auditing each vehicle 
manufacturer on average once every ten model years, as long as you show 
that you have met the auditing requirements in preceding years without 
finding noncompliance or improper procedures.
    (iv) Audits must involve the assembling companies' facilities, 
procedures, and production records to monitor their compliance with 
your instructions, must include investigation of some assembled 
engines, and must confirm that the number of aftertreatment devices 
shipped were sufficient for the number of engines produced. Where a 
vehicle manufacturer is not located in the United States, you may 
conduct the audit at a distribution or port facility in the United 
States.
    (v) If you produce engines and use them to produce vehicles under 
the provisions of this section, you must take steps to ensure that your 
facilities, procedures, and production records are set up to ensure 
compliance with the provisions of this section, but you may meet your 
auditing responsibilities under this paragraph (c)(3) of this section 
by maintaining a database showing how you pair aftertreatment 
components with the appropriate engines.
    (vi) You must keep records of these audits for five years after the 
end of the model year and provide a report to us describing any 
uninstalled or improperly installed aftertreatment components. Send us 
these reports within 90 days of the audit, except as specified in 
paragraph (f) of this section.
    (4) In your application for certification, give a detailed plan for 
auditing vehicle manufacturers, as described in paragraph (c)(3) of 
this section.
    (d) An engine you produce under this section becomes new when it is 
fully assembled, except for aftertreatment devices, for the first time. 
Use this date to determine the engine's model year.
    (e) Once the vehicle manufacturer takes possession of an engine 
exempted under this section, the exemption expires and the engine is 
subject to all the prohibitions in CleanAir Act section 203 (42 U.S.C. 
7522).
    (f) You must notify us within 15 days if you find from an audit or 
another source that a vehicle manufacturer has failed to meet its 
obligations under this section.
    (g) We may suspend, revoke, or void an exemption under this 
section, as follows:
    (1) We may suspend or revoke your exemption for the entire engine 
family if we determine that any of the engines are not in their 
certified configuration after installation in the vehicle, or if you 
fail to comply with the requirements of this section. If we suspend or 
revoke the exemption for any of your engine families under this 
paragraph (g), this exemption will not apply for future certificates 
unless you demonstrate that the factors causing the nonconformity do 
not apply to the other engine families. We may suspend or revoke the 
exemption for shipments to a single facility where final assembly 
occurs.
    (2) We may void your exemption for the entire engine family if you 
intentionally submit false or incomplete information or fail to keep 
and provide to EPA the records required by this section.

[[Page 40432]]

    (h) You are liable for the in-use compliance of any engine that is 
exempt under this section.
    (i) It is a violation of the Act for any person to complete 
assembly of the exempted engine without complying fully with the 
installation instructions.
    (j) [Reserved]
    (k) You may ask us to provide a temporary exemption to allow you to 
complete production of your engines at different facilities, as long as 
you maintain control of the engines until they are in their certified 
configuration. We may require you to take specific steps to ensure that 
such engines are in their certified configuration before reaching the 
ultimate purchaser. You may request an exemption under this paragraph 
(k) in your application for certification, or in a separate submission.

0
7. Section 85.2111 is amended by revising the introductory text and 
adding paragraph (d) to read as follows:


Sec.  85.2111  Warranty enforcement.

    The following acts are prohibited and may subject a manufacturer to 
up to a $32,500 civil penalty for each offense, except as noted in 
paragraph (d) of this section:
* * * * *
    (d) The maximum penalty value listed in this section is shown for 
calendar year 2004. Maximum penalty limits for later years may be 
adjusted based on the Consumer Price Index. The specific regulatory 
provisions for changing the maximum penalties, published in 40 CFR part 
19, reference the applicable U.S. Code citation on which the prohibited 
action is based.
0
8. Appendix II to subpart V is amended by revising section 1 of part A 
to read as follows:

Appendix II to Subpart V of Part 85--Arbitration Rules

Part A--Pre-Hearing

Section 1: Initiation of Arbitration

    Either party may commence an arbitration under these rules by 
filing at any regional office of the American Arbitration 
Association (the AAA) three copies of a written submission to 
arbitrate under these rules, signed by either party. It shall 
contain a statement of the matter in dispute, the amount of money 
involved, the remedy sought, and the hearing locale requested, 
together with the appropriate administrative fee as provided in the 
Administrative Fee Schedule of the AAA in effect at the time the 
arbitration is filed. The filing party shall notify the MOD Director 
in writing within 14 days of when it files for arbitration and 
provide the MOD Director with the date of receipt of the bill by the 
part manufacturer.
    Unless the AAA in its discretion determines otherwise and no 
party disagrees, the Expedited Procedures (as described in Part E of 
these Rules) shall be applied in any case where no disclosed claim 
or counterclaim exceeds $32,500, exclusive of interest and 
arbitration costs. Parties may also agree to the Expedited 
Procedures in cases involving claims in excess of $32,500.
    All other cases, including those involving claims not in excess 
of $32,500 where either party so desires, shall be administered in 
accordance with Parts A through D of these Rules.
* * * * *

PART 86--CONTROL OF EMISSIONS FROM NEW AND IN-USE HIGHWAY VEHICLES 
AND ENGINES

0
9. The authority citation for part 86 continues to read as follows:

    Authority: 42 U.S.C. 7401-7671q.

0
10. Section 86.004-16 is amended by revising paragraph (d) to read as 
follows:


Sec.  86.004-16  Prohibition of defeat devices.

* * * * *
    (d) For vehicle and engine designs designated by the Administrator 
to be investigated for possible defeat devices:
    (1) General. The manufacturer must show to the satisfaction of the 
Administrator that the vehicle or engine design does not incorporate 
strategies that reduce emission control effectiveness exhibited during 
the applicable Federal emissions test procedures when the vehicle or 
engine is operated under conditions which may reasonably be expected to 
be encountered in normal operation and use, unless one of the specific 
exceptions set forth in the definition of ``defeat device'' in Sec.  
86.004-2 has been met.
    (2) Information submissions required. The manufacturer will provide 
an explanation containing detailed information (including information 
which the Administrator may request to be submitted) regarding test 
programs, engineering evaluations, design specifications, calibrations, 
on-board computer algorithms, and design strategies incorporated for 
operation both during and outside of the applicable Federal emission 
test procedure.

0
11. Section 86.004-26 is amended by revising paragraph (c)(4) to read 
as follows:


Sec.  86.004-26  Mileage and service accumulation; emission 
measurements.

* * * * *
    (c) * * *
    (4) The manufacturer shall determine, for each engine family, the 
number of hours at which the engine system combination is stabilized 
for emission-data testing. The manufacturer shall maintain, and provide 
to the Administrator if requested, a record of the rationale used in 
making this determination. The manufacturer may elect to accumulate 125 
hours on each test engine within an engine family without making a 
determination. Any engine used to represent emission-data engine 
selections under Sec.  86.094-24(b)(2) shall be equipped with an engine 
system combination that has accumulated at least the number of hours 
determined under this paragraph. Complete exhaust emission tests shall 
be conducted for each emission-data engine selection under Sec.  
86.094-24(b)(2). Evaporative emission controls must be connected, as 
described in 40 CFR part 1065, subpart F. The Administrator may 
determine under Sec.  86.094-24(f) that no testing is required.
* * * * *

0
12. Section 86.007-11 is amended by revising paragraphs (a)(2) and 
(a)(3)(i) and adding paragraph (g)(6) to read as follows:


Sec.  86.007-11  Emission standards and supplemental requirements for 
2007 and later model year heavy-duty engines and vehicles.

* * * * *
    (a) * * *
    (2) The standards set forth in paragraph (a)(1) of this section 
refer to the exhaust emitted over the duty cycle specified in 
paragraphs (a)(2)(i) through (iii) of this section, where exhaust 
emissions are measured and calculated as specified in paragraphs 
(a)(2)(iv) and (v) of this section in accordance with the procedures 
set forth in 40 CFR part 1065, except as noted in Sec.  86.007-
23(c)(2):
    (i) Perform the test interval set forth in paragraph (f)(2) of 
Appendix I of this part with a cold-start according to 40 CFR part 
1065, subpart F. This is the cold-start test interval.
    (ii) Shut down the engine after completing the test interval and 
allow 20 minutes to elapse. This is the hot-soak.
    (iii) Repeat the test interval. This is the hot-start test 
interval.
    (iv) Calculate the total emission mass of each constituent, m, and 
the total work, W, over each test interval according to 40 CFR 
1065.650.
    (v) Determine your engine's brake-specific emissions using the 
following calculation, which weights the emissions from the cold-start 
and hot-start test intervals:

[[Page 40433]]

[GRAPHIC] [TIFF OMITTED] TR13JY05.000

    (3) * * *
    (i) Exhaust emissions, as determined under Sec.  86.1360-2007(b) 
pertaining to the supplemental emission test cycle, for each regulated 
pollutant shall not exceed 1.0 times the applicable emission standards 
or FELs specified in paragraph (a)(1) of this section.
* * * * *
    (g) * * *
    (6) Manufacturers may determine the number of engines and vehicles 
that are required to certify to the NOX standard in this 
section (including the phase-out engines certified to the 
NOX+NMHC standard referenced in this paragraph(g)) based on 
calendar years 2007, 2008, and 2009, rather than model years 2007, 
2008, and 2009.
* * * * *

0
13. Section 86.007-21 is amended by revising paragraph (o) to read as 
follows:


Sec.  86.007-21  Application for certification.

* * * * *
    (o) For diesel heavy-duty engines, the manufacturer must provide 
the following additional information pertaining to the supplemental 
emission test conducted under Sec.  86.1360-2007:
    (1) Weighted brake-specific emissions data (i.e., in units of g/
bhp-hr), calculated according to 40 CFR 1065.650 for all pollutants for 
which a brake-specific emission standard is established in this 
subpart;
    (2) For engines subject to the MAEL (see Sec.  86.007-
11(a)(3)(ii)), brake specific gaseous emission data for each of the 12 
non-idle test points (identified under Sec.  86.1360-2007(b)(1)) and 
the 3 EPA-selected test points (identified under Sec.  86.1360-
2007(b)(2));
    (3) For engines subject to the MAEL (see Sec.  86.007-
11(a)(3)(ii)), concentrations and mass flow rates of all regulated 
gaseous emissions plus carbon dioxide;
    (4) Values of all emission-related engine control variables at each 
test point;
    (5) A statement that the test results correspond to the test engine 
selection criteria in 40 CFR 1065.401. The manufacturer also must 
maintain records at the manufacturer's facility which contain all test 
data, engineering analyses, and other information which provides the 
basis for this statement, where such information exists. The 
manufacturer must provide such information to the Administrator upon 
request;
    (6) For engines subject to the MAEL (see Sec.  86.007-
11(a)(3)(ii)), a statement that the engines will comply with the 
weighted average emissions standard and interpolated values comply with 
the Maximum Allowable Emission Limits specified in Sec.  86.007-
11(a)(3) for the useful life of the engine where applicable. The 
manufacturer also must maintain records at the manufacturer's facility 
which contain a detailed description of all test data, engineering 
analyses, and other information which provides the basis for this 
statement, where such information exists. The manufacturer must provide 
such information to the Administrator upon request.
    (7) [Reserved]
* * * * *

0
14. Section 86.007-35 is amended by revising paragraph (c) to read as 
follows:


Sec.  86.007-35  Labeling.

* * * * *
    (c) Vehicles powered by model year 2007 and later diesel-fueled 
engines must include permanent, readily visible labels on the dashboard 
(or instrument panel) and near all fuel inlets that state ``Use Ultra 
Low Sulfur Diesel Fuel Only''; or ``Ultra Low Sulfur DieselFuel Only''.
* * * * *

0
15. Part 86 is amended by removing the first Sec.  86.008-10, which was 
added on October 6, 2000.

0
16. Section 86.084-2 is amended by revising the definition for ``Curb-
idle'' to read as follows:


Sec.  86.084-2  Definitions.

* * * * *
    Curb-idle means:
    (1) For manual transmission code light-duty trucks, the engine 
speed with the transmission in neutral or with the clutch disengaged 
and with the air conditioning system, if present, turned off. For 
automatic transmission code light-duty trucks, curb-idle means the 
engine speed with the automatic transmission in the Park position (or 
Neutral position if there is no Park position), and with the air 
conditioning system, if present, turned off.
    (2) For manual transmission code heavy-duty engines, the 
manufacturer's recommended engine speed with the clutch disengaged. For 
automatic transmission code heavy-duty engines, curb idle means the 
manufacturer's recommended engine speed with the automatic transmission 
in gear and the output shaft stalled. (Measured idle speed may be used 
in lieu of curb-idle speed for the emission tests when the difference 
between measured idle speed and curb idle speed is sufficient to cause 
a void test under 40 CFR 1065.530 but not sufficient to permit 
adjustment in accordance with 40 CFR part 1065, subpart E.
* * * * *

0
17. Section 86.095-35 is amended by revising paragraph (a)(3)(iii)(B) 
to read as follows:


Sec.  86.095-35  Labeling.

* * * * *
    (a) * * *
    (3) * * *
    (iii) * * *
    (B) The full corporate name and trademark of the manufacturer; 
though the label may identify another company and use its trademark 
instead of the manufacturer's as long as the manufacturer complies with 
the provisions of 40CFR 1039.640.
* * * * *

0
18. Section 86.096-38 is amended by revising paragraph (g)(19)(iii) to 
read as follows:


Sec.  86.096-38  Maintenance instructions.

* * * * *
    (g) * * *
    (19) * * *
    (iii) Any person who violates a provision of this paragraph (g) 
shall be subject to a civil penalty of not more than $32,500 per day 
for each violation. This maximum penalty is shown for calendar year 
2004. Maximum penalty limits for later years may be set higher based on 
the Consumer Price Index, as specified in 40 CFR part 19. In addition, 
such person shall be liable for all other remedies set forth in Title 
II of the Clean Air Act, remedies pertaining to provisions of Title II 
of the Clean Air Act, or other applicable provisions of law.

0
19. Section 86.121-90 is amended by revising paragraph (d) introductory 
text to read as follows:


Sec.  86.121-90  Hydrocarbon analyzer calibration.

* * * * *
    (d) FID response factor to methane. When the FID analyzer is to be 
used for the analysis of gasoline, diesel, methanol, ethanol, liquefied 
petroleum gas, and natural gas-fueled vehicle hydrocarbon samples, the 
methane

[[Page 40434]]

response factor of the analyzer must be established. To determine the 
total hydrocarbon FID response to methane, known methane in air 
concentrations traceable to the National Institute of Standards 
andTechnology (NIST) must be analyzed by the FID. Several methane 
concentrations must be analyzed by the FID in the range of 
concentrations in the exhaust sample. The total hydrocarbon FID 
response to methane is calculated as follows:


rCH4=FIDppm/SAMppm

    Where:
* * * * *

0
20. Section 86.144-94 is amended by revising paragraph (c)(8)(vi) to 
read as follows:


Sec.  86.144-94  Calculations; exhaust emissions.

* * * * *
    (c) * * *
    (8) * * *
    (vi) rCH4=HC FID response to methane as measured in Sec.  
86.121(d).
* * * * *

0
21. Section 86.158-00 is amended by revising the introductory text to 
read as follows:


Sec.  86.158-00  Supplemental Federal Test Procedures; overview.

    The procedures described in Sec. Sec.  86.158-00, 86.159-00, 
86.160-00, and 86.162-00 discuss the aggressive driving (US06) and air 
conditioning (SC03) elements of the Supplemental Federal Test 
Procedures (SFTP). These test procedures consist of two separable test 
elements: A sequence of vehicle operation that tests exhaust emissions 
with a driving schedule (US06) that tests exhaust emissions under high 
speeds and accelerations (aggressive driving); and a sequence of 
vehicle operation that tests exhaust emissions with a driving schedule 
(SC03) which includes the impacts of actual air conditioning operation. 
These test procedures (and the associated standards set forth in 
subpart S of this part) are applicable to light-duty vehicles and 
light-duty trucks.
* * * * *

0
22. Section 86.159-00 is amended by revising paragraph (f)(2)(ix) to 
read as follows:


Sec.  86.159-00  Exhaust emission test procedure for US06 emissions.

* * * * *
    (f) * * *
    (2) * * *
    (ix) Turn the engine off 2 seconds after the end of the last 
deceleration (i.e., engine off at 596 seconds).
* * * * *
0
23. Section 86.160-00 is amended by revising the first sentence of 
paragraph (a), and paragraphs (c)(10), (c)(12), (d)(10), and (d)(13) to 
read as follows:


Sec.  86.160-00  Exhaust emission test procedure for SC03 emissions.

    (a) Overview. The dynamometer operation consists of a single, 600 
second test on the SC03 driving schedule, as described in appendix I, 
paragraph (h), of this part. * * *
* * * * *
    (c) * * *
    (10) Eighteen seconds after the engine starts, begin the initial 
vehicle acceleration of the driving schedule.
* * * * *
    (12) Turn the engine off 2 seconds after the end of the last 
deceleration (i.e., engine off at 596 seconds).
* * * * *
    (d) * * *
    (10) Turn the engine off 2 seconds after the end of the last 
deceleration (i.e., engine off at 596 seconds).
* * * * *
    (13) Immediately after the end of the sample period, turn off the 
cooling fan, disconnect the exhaust tube from the vehicle tailpipe(s), 
and drive the vehicle from dynamometer.
* * * * *

0
24. Section 86.161-00 is amended by revising paragraph (b)(1) to read 
as follows:


Sec.  86.161-00  Air conditioning environmental test facility ambient 
requirements.

* * * * *
    (b) * * *
    (1) Ambient humidity is controlled, within the test cell, during 
all phases of the air conditioning test sequence to an average of 100 
+/-5 grains of water/pound of dry air.
* * * * *

0
25. Section 86.164-00 is amended by revising paragraph (c)(1)(i) 
introductory text to read as follows:


Sec.  86.164-00  Supplemental federal test procedure calculations.

* * * * *
    (c)(1) * * *


(i) YWSFTP = 0.35(YFTP) + 0.37(YSC03) 
+ 0.28(YUS06)

    Where:
* * * * *

0
26. Section 86.410-2006 is amended by adding paragraph (e)(3) to read 
as follows:


Sec.  86.410-2006  Emission standards for 2006 and later model year 
motorcycles.

* * * * *
    (e) * * *
    (3) Small-volume manufacturers are not required to comply with 
permeation requirements in paragraph (g) of this section until model 
year 2010.
* * * * *

0
27. A new Sec.  86.413-2006 is added to read as follows:


Sec.  86.413-2006  Labeling.

    (a)(1) The manufacturer of any motorcycle shall, at the time of 
manufacture, affix a permanent, legible label, of the type and in the 
manner described in this section, containing the information provided 
in this section, to all production models of such vehicles available 
for sale to the public and covered by a certificate of conformity.
    (2) A permanent, legible label shall be affixed in a readily 
accessible position. Multi-part labels may be used.
    (3) The label shall be affixed by the vehicle manufacturer who has 
been issued the certificate of conformity for such vehicle, in such a 
manner that it cannot be removed without destroying or defacing the 
label, and shall not be affixed to any part which is easily detached 
from the vehicle or is likely to be replaced during the useful life of 
the vehicle.
    (4) The label shall contain the following information lettered in 
the English language in block letters and numerals, which shall be of a 
color that contrasts with the background of the label:
    (i) The label heading shall read: ``Vehicle Emission Control
    Information'';
    (ii) Full corporate name and trademark of the manufacturer;
    (iii) Engine displacement (in cubic centimeters or liters) and 
engine family identification;
    (iv) Engine tuneup specifications and adjustments, as recommended 
by the manufacturer, including, if applicable: idle speed, ignition 
timing, and the idle air-fuel mixture setting procedure and value 
(e.g., idle CO, idle air-fuel ratio, idle speed drop). These 
specifications shall indicate the proper transmission position during 
tuneup, and which accessories should be in operation and which systems 
should be disconnected during a tuneup;
    (v) Any specific fuel or engine lubricant requirements (e.g., lead 
content, research octane number, engine lubricant type);
    (vi) Identification of the exhaust emission control system, using 
abbreviations in accordance with SAE J1930, June 1993, including the 
following abbreviations for items commonly appearing on motorcycles:


[[Page 40435]]


OC Oxidation catalyst;
TWC Three-way catalyst;
AIR Secondary air injection (pump);
PAIR Pulsed secondary air injection;
DFI Direct fuel injection;
O2S Oxygen sensor;
HO2S Heated oxygen sensor;
EM Engine modification;
CFI Continuous fuel injection;
MFI Multi-port (electronic) fuel injection; and
TBI Throttle body (electronic) fuel injection.

    (viii) An unconditional statement of conformity to U.S. EPA 
regulations which includes the model year; for example, ``This Vehicle 
Conforms to U.S. EPA Regulations Applicable to----Model Year New 
Motorcycles'' (the blank is to be filled in with the appropriate model 
year). For all Class III motorcycles and for Class I and Class II 
motorcycles demonstrating compliance with the averaging provisions in 
40 CFR 86.449 the statement must also include the phrase ``is certified 
to an HC+NOX emission standard of ---- grams/kilometer'' 
(the blank is to be filled in with the Family Emission Limit determined 
by the manufacturer).
    (b) The provisions of this section shall not prevent a manufacturer 
from also reciting on the label that such vehicle conforms to any other 
applicable Federal or State standards for new motorcycles or any other 
information that such manufacturer deems necessary for, or useful to, 
the proper operation and satisfactory maintenance of the vehicle.

0
28. Section 86.447-2006 is revised to read as follows:


Sec.  86.447-2006  What provisions apply to motorcycle engines below 50 
cc that are certified under the Small SI program or the Recreational-
vehicle program?

    (a) General provisions. If you are an engine manufacturer, this 
section allows you to introduce into commerce a new highway motorcycle 
(that is, a motorcycle that is a motor vehicle) if it has an engine 
below 50 cc that is already certified to the requirements that apply to 
engines or vehicles under 40 CFR part 90 or 1051 for the appropriate 
model year. If you comply with all the provisions of this section, we 
consider the certificate issued under 40 CFR part 90 or 1051 for each 
engine or vehicle to also be a valid certificate of conformity under 
this part 86 for its model year, without a separate application for 
certification under the requirements of this part 86. See Sec.  86.448-
2006 for similar provisions that apply to vehicles that are certified 
to chassis-based standards under 40CFR part 1051.
    (b) Vehicle-manufacturer provisions. If you are not an engine 
manufacturer, you may produce highway motorcycles using nonroad engines 
below 50 cc under this section as long as you meet all the requirements 
and conditions specified in paragraph (d) of this section. If you 
modify the nonroad engine in any of the ways described in paragraph 
(d)(2) of this section for installation in a highway motorcycle, we 
will consider you a manufacturer of a new highway motorcycle. Such 
engine modifications prevent you from using the provisions of this 
section.
    (c) Liability. Engines for which you meet the requirements of this 
section, and vehicles containing these engines, are exempt from all the 
requirements and prohibitions of this part, except for those specified 
in this section. Engines and vehicles exempted under this section must 
meet all the applicable requirements from 40 CFR part 90 or 1051. This 
applies to engine manufacturers, vehicle manufacturers who use these 
engines, and all other persons as if these engines were used in 
recreational vehicles or other nonroad applications. The prohibited 
acts of 42 U.S.C. 7522 apply to these new highway motorcycles; however, 
we consider the certificate issued under 40 CFR part 90 or 1051 for 
each engine to also be a valid certificate of conformity under this 
part 86 for its model year. If we make a determination that these 
engines do not conform to the regulations during their useful life, we 
may require you to recall them under 40 CFR part 86, 90, or 1068.
    (d) Specific requirements. If you are an engine or vehicle 
manufacturer and meet all the following criteria and requirements 
regarding your new engine or vehicle, the highway motorcycle is 
eligible for an exemption under this section:
    (1) Your engine must be below 50 cc and must be covered by a valid 
certificate of conformity for Class II engines issued under 40 CFR part 
90 or for recreational vehicles under 40 CFR part 1051.
    (2) You must not make any changes to the certified engine that 
could reasonably be expected to increase its exhaust emissions for any 
pollutant, or its evaporative emissions, if applicable. For example, if 
you make any of the following changes to one of these engines, you do 
not qualify for this exemption:
    (i) Change any fuel system or evaporative system parameters from 
the certified configuration.
    (ii) Change, remove, or fail to properly install any other 
component, element of design, or calibration specified in the engine 
manufacturer's application for certification. This includes 
aftertreatment devices and all related components.
    (iii) Modify or design the engine cooling system so that 
temperatures or heat rejection rates are outside the original engine 
manufacturer's specified ranges.
    (3) You must show that fewer than 50 percent of the engine family's 
total sales in the United States are used in highway motorcycles. This 
includes engines used in any application, without regard to which 
company manufactures the vehicle or equipment. In addition, if you 
manufacture highway motorcycles, you must show that fewer than 50 
percent of the engine family's total sales in the United States are 
highway motorcycles. Show that you meet the engine-sales criterion as 
follows:
    (i) If you are the original manufacturer of the engine, base this 
showing on your sales information.
    (ii) In all other cases, you must get the original manufacturer of 
the engine to confirm the engine sales volumes based on its sales 
information.
    (4) You must ensure that the engine has the label we require under 
40 CFR part 90 or 1051.
    (5) You must add a permanent supplemental label to the engine in a 
position where it will remain clearly visible after installation in the 
vehicle. In the supplemental label, do the following:
    (i) Include the heading: ``HIGHWAY MOTORCYCLE ENGINE EMISSION 
CONTROL INFORMATION''.
    (ii) Include your full corporate name and trademark. You may 
instead include the full corporate name and trademark of another 
company you choose to designate.
    (iii) State: ``THIS ENGINE WAS ADAPTED FOR HIGHWAY USE 
WITHOUTAFFECTING ITS EMISSION CONTROLS.''.
    (iv) State the date you finished installation (month and year), if 
applicable.
    (6) Send the Designated Compliance Officer a signed letter by the 
end of each calendar year (or less often if we tell you) with all the 
following information:
    (i) Identify your full corporate name, address, and telephone 
number.
    (ii) List the engine or vehicle models you expect to produce under 
this exemption in the coming year.
    (iii) State: ``We produce each listed [engine or vehicle] model for 
without making any changes that could increase its certified emission 
levels, as described in 40 CFR 86.447-2006.''.
    (e) Failure to comply. If your highway motorcycles do not meet the 
criteria listed in paragraph (d) of this section, they will be subject 
to the standards,

[[Page 40436]]

requirements, and prohibitions of this part 86 and the certificate 
issued under 40 CFR part 90 or 1051 will not be deemed to also be a 
certificate issued under this part 86. Introducing these engines into 
commerce without a valid exemption or certificate of conformity under 
this part violates the prohibitions in 40 CFR part 85.
    (f) Data submission. We may require you to send us emission test 
data on any applicable nonroad duty cycles.
    (g) Participation in averaging, banking and trading. Engines or 
vehicles adapted for recreational use under this section may not 
generate or use emission credits under this part 86. These engines or 
vehicles may generate credits under the ABT provisions in 40 CFR part 
90 or 1051. These engines or vehicles must use emission credits under 
40 CFR part 90 or 1051 if they are certified to an FEL that exceeds an 
applicable standard.

0
29. Section 86.448-2006 is revised to read as follows:


Sec.  86.448-2006  What provisions apply to vehicles certified under 
the Recreational-vehicle program?

    (a) General provisions. If you are a highway-motorcycle 
manufacturer, this section allows you to introduce into commerce a new 
highway motorcycle with an engine below 50 cc if it is already 
certified to the requirements that apply to recreational vehicles under 
40 CFR parts 1051. A highway motorcycle is a motorcycle that is a motor 
vehicle. If you comply with all of the provisions of this section, we 
consider the certificate issued under 40 CFR part 1051 for each 
recreational vehicle to also be a valid certificate of conformity for 
the motor vehicle under this part 86 for its model year, without a 
separate application for certification under the requirements of this 
part 86. See Sec.  86.447-2006 for similar provisions that apply to 
nonroad engines produced for highway motorcycles.
    (b) Nonrecreational-vehicle provisions. If you are not a 
recreational-vehicle manufacturer, you may produce highway motorcycles 
from recreational vehicles with engines below 50 cc under this section 
as long as you meet all the requirements and conditions specified in 
paragraph (d) of this section. If you modify the recreational vehicle 
or its engine in any of the ways described in paragraph (d)(2) of this 
section for installation in a highway motorcycle, we will consider you 
a manufacturer of a new highway motorcycle. Such modifications prevent 
you from using the provisions of this section.
    (c) Liability. Vehicles for which you meet the requirements of this 
section are exempt from all the requirements and prohibitions of this 
part, except for those specified in this section. Engines and vehicles 
exempted under this section must meet all the applicable requirements 
from 40 CFR part 1051. This applies to engine manufacturers, vehicle 
manufacturers, and all other persons as if the highway motorcycles were 
recreational vehicles. The prohibited acts of 42 U.S.C. 7522 apply to 
these new highway motorcycles; however, we consider the certificate 
issued under 40 CFR part 1051 for each recreational vehicle to also be 
a valid certificate of conformity for the highway motorcycle under this 
part 86 for its model year. If we make a determination that these 
engines or vehicles do not conform to the regulations during their 
useful life, we may require you to recall them under 40 CFR part 86 or 
40 CFR 1068.505.
    (d) Specific requirements. If you are a recreational-vehicle 
manufacturer and meet all the following criteria and requirements 
regarding your new highway motorcycle and its engine, the highway 
motorcycle is eligible for an exemption under this section:
    (1) Your motorcycle must have an engine below 50 cc and it must be 
covered by a valid certificate of conformity as a recreational vehicle 
issued under 40 CFR part 1051.
    (2) You must not make any changes to the certified recreational 
vehicle that we could reasonably expect to increase its exhaust 
emissions for any pollutant, or its evaporative emissions if it is 
subject to evaporative-emission standards. For example, if you make any 
of the following changes, you do not qualify for this exemption:
    (i) Change any fuel system parameters from the certified 
configuration.
    (ii) Change, remove, or fail to properly install any other 
component, element of design, or calibration specified in the vehicle 
manufacturer's application for certification. This includes 
aftertreatment devices and all related components.
    (iii) Modify or design the engine cooling system so that 
temperatures or heat rejection rates are outside the original vehicle 
manufacturer's specified ranges.
    (3) You must show that fewer than 50 percent of the engine family's 
total sales in the United States are used in highway motorcycles. This 
includes highway and off-highway motorcycles, without regard to which 
company completes the manufacturing of the highway motorcycle. Show 
this as follows:
    (i) If you are the original manufacturer of the vehicle, base this 
showing on your sales information.
    (ii) In all other cases, you must get the original manufacturer of 
the vehicle to confirm this based on their sales information.
    (4) The highway motorcycle must have the vehicle emission control 
information we require under 40 CFR part 1051.
    (5) You must add a permanent supplemental label to the highway 
motorcycle in a position where it will remain clearly visible. In the 
supplemental label, do the following:
    (i) Include the heading: ``HIGHWAY MOTORCYCLE ENGINE EMISSION 
CONTROL INFORMATION''.
    (ii) Include your full corporate name and trademark. You may 
instead include the full corporate name and trademark of another 
company you choose to designate.
    (iii) State: ``THIS VEHICLE WAS ADAPTED FOR HIGHWAY USE WITHOUT 
AFFECTING ITS EMISSION CONTROLS.''.
    (iv) State the date you finished modifying the vehicle (month and 
year), if applicable.
    (6) Send the Designated Compliance Officer a signed letter by the 
end of each calendar year (or less often if we tell you) with all the 
following information:
    (i) Identify your full corporate name, address, and telephone 
number.
    (ii) List the highway motorcycle models you expect to produce under 
this exemption in the coming year.
    (iii) State: ``We produced each listed highway motorcycle without 
making any changes that could increase its certified emission levels, 
as described in 40 CFR 86.448-2006.''.
    (e) Failure to comply. If your highway motorcycles do not meet the 
criteria listed in paragraph (d) of this section, they will be subject 
to the standards, requirements, and prohibitions of this part 86 and 40 
CFR part 85, and the certificate issued under 40 CFR part 1051 will not 
be deemed to also be a certificate issued under this part 86. 
Introducing these motorcycles into commerce without a valid exemption 
or certificate of conformity under this part violates the prohibitions 
in 40 CFR part 85.
    (f) Data submission. We may require you to send us emission test 
data on the duty cycle for Class I motorcycles.
    (g) Participation in averaging, banking and trading. Recreational 
vehicles adapted for use as highway motorcycles under this section may 
not generate or use emission credits under this part 86. These engines 
may generate credits under the ABT provisions in 40 CFR part 1051. 
These engines must use emission credits under 40 CFR part

[[Page 40437]]

1051 if they are certified to an FEL that exceeds an applicable 
standard.

0
30. In Sec.  86.513-2004, Table 1 in paragraph (a)(1) is revised to 
read as follows:


Sec.  86.513-2004  Fuel and engine lubricant specifications.

* * * * *
    (a) * * *
    (1) * * *

    Table 1 of Sec.   86.513-2004--Gasoline Test Fuel Specifications
------------------------------------------------------------------------
              Item                     Procedure             Value
------------------------------------------------------------------------
                           Distillation Range:
------------------------------------------------------------------------
1. Initial boiling point, [deg]C  ASTM D 86-97......  23.9--35.0 \1\
2. 10% point, [deg]C............  ASTM D 86-97......  48.9--57.2
3. 50% point, [deg]C............  ASTM D 86-97......  93.3--110.0
4. 90% point, [deg]C............  ASTM D 86-97......  148.9--162.8
5. End point, [deg]C............  ASTM D 86-97......  212.8
---------------------------------
                        Hydrocarbon composition:
------------------------------------------------------------------------
1. Olefins, volume %............  ASTM D 1319-98....  10 maximum
2. Aromatics, volume %..........  ASTM D 1319-98....  35 maximum
3. Saturates....................  ASTM D 1319-98....  Remainder
Lead (organic), g/liter.........  ASTM D 3237.......  0.013 maximum
Phosphorous, g/liter............  ASTM D 3231.......  0.0013 maximum
Sulfur, weight %................  ASTM D 1266.......  0.008 maximum
Volatility (Reid Vapor            ASTM D 323........  55.2 to 63.4 \1\
 Pressure), kPa.
------------------------------------------------------------------------
\1\ For testing at altitudes above 1,219 m, the specified volatility
  range is 52 to 55 kPa and the specified initial boiling point range is
  (23.9 to 40.6) [deg]C.

* * * * *

0
31. Section 86.884-8 is amended by revising paragraph (c) introductory 
text to read as follows:


Sec.  86.884-8  Dynamometer and engine equipment.

* * * * *
    (c) An exhaust system with an appropriate type of smokemeter placed 
no more than 32 feet from the exhaust manifold(s), turbocharger 
outlet(s), exhaust aftertreatment device(s), or crossover junction (on 
Vee engines), whichever is farthest downstream. The smoke exhaust 
system shall present an exhaust backpressure within 0.2 
inch Hg of the upper limit at maximum rated horsepower, as established 
by the engine manufacturer in his sales and service literature for 
vehicle application. The following options may also be used:
* * * * *

0
32. Section 86.884-10 is amended by revising paragraph (a) introductory 
text to read as follows:


Sec.  86.884-10  Information.

* * * * *
    (a) Engine description and specifications. A copy of the 
information specified in this paragraph must accompany each engine sent 
to the Administrator for compliance testing. If the engine is submitted 
to the Administrator for testing under subpart N of this part or 40 CFR 
part 1065, only the specified information need accompany the engine. 
The manufacturer need not record the information specified in this 
paragraph for each test if the information, with the exception of 
paragraphs (a)(3), (a)(12), and (a)(13) of this section, is included in 
the manufacturer's part I.
* * * * *

0
33. Section 86.884-12 is amended by revising paragraph (c)(2) to read 
as follows:


Sec.  86.884-12  Test run.

* * * * *
    (c) * * *
    (2) Warm up the engine by the procedure described in 40 CFR 
1065.530.
* * * * *

0
34. Section 86.1005-90 is amended by revising paragraphs (a)(1)(i), 
(a)(1)(ii), (a)(2)(vi)(A), and (a)(2)(vi)(B) to read as follows:


Sec.  86.1005-90  Maintenance of records; submittal of information.

    (a) * * *
    (1) * * *
    (i) If testing heavy-duty gasoline-fueled or methanol-fueled Otto-
cycle engines, the equipment requirements specified in 40 CFR part 
1065, subparts B and C;
    (ii) If testing heavy-duty petroleum-fueled or methanol-fueled 
diesel engines, the equipment requirements specified in 40 CFR part 
1065, subparts B and C;
* * * * *
    (2) * * *
    (vi) * * *
    (A) If testing gasoline-fueled or methanol-fueled Otto-cycle heavy-
duty engines, the record requirements specified in 40 CFR 1065.695;
    (B) If testing petroleum-fueled or methanol-fueled diesel heavy-
duty engines, the record requirements specified in 40 CFR 1065.695;
* * * * *

0
35. Section 86.1108-87 is amended by revising paragraphs (a)(1)(i), 
(a)(1)(ii), (a)(2)(vi)(A), and (a)(2)(vi)(B) to read as follows:


Sec.  86.1108-87  Maintenance of records.

    (a) * * *
    (1) * * *
    (i) If testing heavy-duty gasoline engines, the equipment 
requirements specified in 40 CFR part 1065, subparts B and C;
    (ii) If testing heavy-duty diesel engines, the equipment 
requirements specified in 40 CFR part 1065, subparts B and C;
* * * * *
    (2) * * *
    (vi) * * *
    (A) If testing heavy-duty gasoline engines, the record requirements 
specified in 40 CFR 1065.695;
    (B) If testing heavy-duty diesel engines, the record requirements 
specified in 40 CFR 1065.695;
* * * * *

0
36. A new Sec.  86.1213-08 is added to read as follows:

[[Page 40438]]

Sec.  86.1213-08  Fuel specifications.

    The test fuels listed in 40 CFR part 1065, subpart H, shall be used 
for evaporative emission testing.

0
37. Section 86.1301-90 is redesignated as Sec.  86.1301 and revised to 
read as follows:


Sec.  86.1301  Scope; applicability.

    This subpart specifies gaseous emission test procedures for Otto-
cycle and diesel heavy-duty engines, and particulate emission test 
procedures for diesel heavy-duty engines, as follows:
    (a) For model years 1990 through 2003, manufacturers must use the 
test procedures specified in Sec.  86.1305-90.
    (b) For model years 2004 through 2009, manufacturers may use the 
test procedures specified in Sec.  86.1305-2004 or Sec.  86.1305-2010. 
For any EPA testing before the 2010 model year, EPA will use the 
manufacturer's selected procedures for mapping engines, generating duty 
cycles, and applying cycle-validation criteria. For any other 
parameters,EPA may conduct testing using either of the specified 
procedures.
    (c) For model years 2010 and later, manufacturers must use the test 
procedures specified in Sec.  86.1305-2010.
    (d) As allowed under subpart A of this part, manufacturers may use 
carryover data from previous model years to demonstrate compliance with 
emission standards, without regard to the provisions of this section.

0
38. Section 86.1304-90 is redesignated as Sec.  86.1304 and amended by 
revising paragraph (a) to read as follows:


Sec.  86.1304  Section numbering; construction.

    (a) Section numbering. The model year of initial applicability is 
indicated by the section number. The digits following the hyphen 
designate the first model year for which a section is applicable. The 
section continues to apply to subsequent model years unless a later 
model year section is adopted. (Example: Sec.  86.13xx-2004 applies to 
the 2004 and subsequent model years. If a Sec.  86.13xx-2007 is 
promulgated it would apply beginning with the 2007 model year; Sec.  
86.13xx-2004 would apply to model years 2004 through 2006.)
* * * * *

0
39. A new Sec.  86.1305-2010 is added to read as follows:


Sec.  86.1305-2010  Introduction; structure of subpart.

    (a) This subpart specifies the equipment and procedures for 
performing exhaust-emission tests on Otto-cycle and diesel-cycle heavy-
duty engines. Subpart A of this part sets forth the emission standards 
and general testing requirements to comply with EPA certification 
procedures.
    (b) Use the applicable equipment and procedures for spark-ignition 
or compression-ignition engines in 40 CFR part 1065 to determine 
whether engines meet the duty-cycle emission standards in subpart A of 
this part. Measure the emissions of all regulated pollutants as 
specified in 40 CFR part 1065. Use the duty cycles and procedures 
specified in Sec.  86.1333-2007, Sec.  86.1360-2007, and Sec.  86.1362-
2007. Adjust emission results from engines using aftertreatment 
technology with infrequent regeneration events as described in Sec.  
86.004-28.
    (c) The provisions in Sec.  86.1370-2007 and Sec.  86.1372-2007 
apply for determining whether an engine meets the applicable not-to-
exceed emission standards.
    (d) Measure smoke using the procedures in subpart I of this part 
for evaluating whether engines meet the smoke standards in subpart A of 
this part.
    (e) Use the fuels specified in 40 CFR part 1065 to perform valid 
tests, as follows:
    (1) For service accumulation, use the test fuel or any commercially 
available fuel that is representative of the fuel that in-use engines 
will use.
    (2) For diesel-fueled engines, use the ultra low-sulfur diesel fuel 
specified in 40 CFR part 1065 for emission testing.
    (f) You may use special or alternate procedures to the extent we 
allow them under 40 CFR 1065.10.
    (g) This subpart applies to you as a manufacturer, and to anyone 
who does testing for you.

0
40. Section 86.1321-90 is amended by revising paragraph (a)(3)(ii) to 
read as follows:


Sec.  86.1321-90  Hydrocarbon analyzer calibration.

* * * * *
    (a) * * *
    (3) * * *
    (ii) The HFID optimization procedures outlined in Sec.  86.331-
79(c).
* * * * *

0
41. Section 86.1321-94 is amended by revising paragraph (a)(3)(ii) to 
read as follows:


Sec.  86.1321-94  Hydrocarbon analyzer calibration.

* * * * *
    (a) * * *
    (3) * * *
    (ii) The procedure listed in Sec.  86.331-79(c).
* * * * *

0
42. A new Sec.  86.1333-2010 is added to read as follows:


Sec.  86.1333-2010  Transient test cycle generation.

    (a) Generating transient test cycles. The heavy-duty transient 
engine cycles for Otto-cycle and diesel engines are listed in Appendix 
I((f) (1), (2) and (3)) to this part. These second-by-second listings 
represent torque and rpm maneuvers characteristic of heavy-duty 
engines. Both rpm and torque are normalized (expressed as a percentage 
of maximum) in these listings.
    (1) To unnormalize rpm, use the following equations:
    (i) For diesel engines:
    [GRAPHIC] [TIFF OMITTED] TR13JY05.001
    

Where:

MaxTestSpeed = the maximum test speed as calculated in 40 CFR part 
1065.
    (ii) For Otto-cycle engines:
    [GRAPHIC] [TIFF OMITTED] TR13JY05.002
    

Where:

MaxTestSpeed = the maximum test speed as calculated in 40 CFR part 
1065.
    (2) Torque is normalized to the maximum torque at the rpm listed 
with it. Therefore, to unnormalize the torque values in the cycle, the 
maximum torque curve for the engine in question must be used. The 
generation of the

[[Page 40439]]

maximum torque curve is described in 40 CFR part 1065.
    (b) Example of the unnormalization procedure. Unnormalize the 
following test point, given Maximum Test speed = 3800 rpm and Curb Idle 
Speed = 600 rpm.
[GRAPHIC] [TIFF OMITTED] TR13JY05.003

    (1) Calculate actual rpm:
    [GRAPHIC] [TIFF OMITTED] TR13JY05.004
    
    (2) Determine actual torque: Determine the maximum observed torque 
at 1829 rpm from the maximum torque curve. Then multiply this value 
(e.g., 358 ft-lbs) by 0.82. This results in an actual torque of 294 ft-
lbs.
    (c) Clutch operation. Manual transmission engines may be tested 
with a clutch. If used, the clutch shall be disengaged at all zero 
percent speeds, zero percent torque points, but may be engaged up to 
two points preceding a non-zero point, and may be engaged for time 
segments with zero percent speed and torque points of durations less 
than four seconds. (See 40 CFR 1065.514 for allowances in the cycle 
validation criteria.)

0
43. Section 86.1360-2007 is amended by revising paragraph (b), removing 
and reserving paragraphs (c) and (e), and removing paragraphs (h) and 
(i) to read as follows:


Sec.  86.1360-2007  Supplemental emission test; test cycle and 
procedures.

* * * * *
    (b) Test cycle. (1) Perform testing as described in Sec.  86.1362-
2007 for determining whether an engine meets the applicable standards 
when measured over the supplemental emission test.
    (2) For engines not certified to a NOX standard or FEL 
less than 1.5 g/bhp-hr, EPA may select, and require the manufacturer to 
conduct the test using, up to three discrete test points within the 
control area defined in paragraph (d) of this section. EPA will notify 
the manufacturer of these supplemental test points in writing in a 
timely manner before the test. Emission sampling for these discrete 
test modes must include all regulated pollutants except particulate 
matter.
* * * * *
0
44. A new Sec.  86.1362-2007 is added to read as follows:


Sec.  86.1362-2007  Steady-state testing with a ramped-modal cycle.

    This section describes how to test engines under steady-state 
conditions. Manufacturers may alternatively use the procedures 
specified in Sec.  86.1363-2007 through the 2009 model year.
    (a) Start sampling at the beginning of the first mode and continue 
sampling until the end of the last mode. Calculate emissions as 
described in 40 CFR 1065.650 and cycle statistics as described in 40 
CFR 1065.514.
    (b) Measure emissions by testing the engine on a dynamometer with 
the following ramped-modal duty cycle to determine whether it meets the 
applicable steady-state emission standards:

----------------------------------------------------------------------------------------------------------------
                                          Time in mode
                RMC mode                    (seconds)          Engine speed1,2            Torque (percent)2,3
----------------------------------------------------------------------------------------------------------------
1a Steady-state........................             170  Warm Idle..................  0
1b Transition..........................              20  Linear Transition..........  Linear Transition
2a Steady-state........................             170  A..........................  100
2b Transition..........................              20  A..........................  Linear Transition
3a Steady-state........................             102  A..........................  25
3b Transition..........................              20  A..........................  Linear Transition
4a Steady-state........................             100  A..........................  75
4b Transition..........................              20  A..........................  Linear Transition
5a Steady-state........................             103  A..........................  50
5b Transition..........................              20  Linear Transition..........  Linear Transition
6a Steady-state........................             194  B..........................  100
6b Transition..........................              20  B..........................  Linear Transition
7a Steady-state........................             219  B..........................  25
7b Transition..........................              20  B..........................  Linear Transition
8a Steady-state........................             220  B..........................  75
8b Transition..........................              20  B..........................  Linear Transition
9a Steady-state........................             219  B..........................  50
9b Transition..........................              20  Linear Transition..........  Linear Transition
10a Steady-state.......................             171  C..........................  100
10b Transition.........................              20  C..........................  Linear Transition
11a Steady-state.......................             102  C..........................  25
11b Transition.........................              20  C..........................  Linear Transition
12a Steady-state.......................             100  C..........................  75
12b Transition.........................              20  C..........................  Linear Transition
13a Steady-state.......................             102  C..........................  50
13b Transition.........................              20  Linear Transition..........  Linear Transition
14 Steady-state........................             168  Warm Idle..................  0
----------------------------------------------------------------------------------------------------------------
\1\ Speed terms are defined in 40 CFR part 1065.
\2\ Advance from one mode to the next within a 20-second transition phase. During the transition phase, command
  a linear progression from the speed or torque setting of the current mode to the speed or torque setting of
  the next mode.
\3\ The percent torque is relative to maximum torque at the commanded engine speed.


[[Page 40440]]

    (c) During idle mode, operate the engine with the following 
parameters:
    (1) Hold the speed within your specifications.
    (2) Set the engine to operate at its minimum fueling rate.
    (3) Keep engine torque under 5 percent of maximum test torque.
    (d) For full-load operating modes, operate the engine at its 
maximum fueling rate.
    (e) See 40 CFR part 1065 for detailed specifications of tolerances 
and calculations.
    (f) Perform the ramped-modal test with a warmed-up engine. If the 
ramped-modal test follows directly after testing over the Federal Test 
Procedure, consider the engine warm. Otherwise, operate the engine to 
warm it up as described in 40 CFR part 1065, subpart F.

0
45. A new Sec.  86.1363-2007 is added to read as follows:


Sec.  86.1363-2007  Steady-state testing with a discrete-mode cycle.

    This section describes an alternate procedure for steady-state 
testing that manufacturers may use through the 2009 model year.
    (a) Use the following 13-mode cycle in dynamometer operation on the 
test engine:

----------------------------------------------------------------------------------------------------------------
                                                                  Percent    Weighting    Mode length  (minutes)
             Mode  number                  Engine  speed \1\      load \2\    factors              \3\
----------------------------------------------------------------------------------------------------------------
1....................................  Idle....................  .........         0.15  4
2....................................  A.......................        100         0.08  2
3....................................  B.......................         50         0.10  2
4....................................  B.......................         75         0.10  2
5....................................  A.......................         50         0.05  2
6....................................  A.......................         75         0.05  2
7....................................  A.......................         25         0.05  2
8....................................  B.......................        100         0.09  2
9....................................  B.......................         25         0.10  2
10...................................  C.......................        100         0.08  2
11...................................  C.......................         25         0.05  2
12...................................  C.......................         75         0.05  2
13...................................  C.......................         50         0.05  2
----------------------------------------------------------------------------------------------------------------
\1\ Speed terms are defined in 40 CFR part 1065.
\2\ The percent torque is relative to the maximum torque at the commanded test speed.
\3\ The percent torque is relative to maximum torque at the commanded engine speed.

    (b) Prior to beginning the test sequence, the engine must be 
warmed-up according to the procedures in Sec.  86.1332-90(d)(3)(i) 
through (iv).
    (c) The test must be performed in the order of the mode numbers in 
paragraph (a) of this section. Where applicable, the EPA-selected test 
points identified under Sec.  86.1360-2007(b)(2) must be performed 
immediately upon completion of mode 13. The engine must be operated for 
the prescribed time in each mode, completing engine speed and load 
changes in the first 20 seconds of each mode. The specified speed must 
be held to within50 rpm and the specified torque must be 
held to within plus or minus two percent of the maximum torque at the 
test speed.
    (d) One filter shall be used for sampling PM over the 13-mode test 
procedure. The modal weighting factors specified in paragraph (a) of 
this section shall be taken into account by taking a sample 
proportional to the exhaust mass flow during each individual mode of 
the cycle. This can be achieved by adjusting sample flow rate, sampling 
time, and/or dilution ratio, accordingly, so that the criterion for the 
effective weighting factors is met. The sampling time per mode must be 
at least 4 seconds per 0.01 weighting factor. Sampling must be 
conducted as late as possible within each mode. Particulate sampling 
shall be completed no earlier than 5 seconds before the end of each 
mode.
    (e) The test must be conducted with all emission-related engine 
control variables in the highest brake-specific NOX 
emissions state which could be encountered for a 30 second or longer 
averaging period at the given test point and for the conditions under 
which the engine is being tested.
    (f) Manufacturers must follow the exhaust emissions sample analysis 
procedures under Sec.  86.1340, and the calculation formulas and 
procedures under Sec.  86.1342, for the 13-mode cycle and the 3 EPA-
selected test points as applicable for steady-state testing, including 
the NOX correction factor for humidity.
    (g) Calculate the weighted average emissions as follows:
    (1) For each regulated gaseous pollutant, calculate the weighted 
average emissions using the following equation:
[GRAPHIC] [TIFF OMITTED] TR13JY05.005


Where:

AWA = Weighted average emissions for each regulated gaseous 
pollutant, in grams per brake horse-power hour.
AM = Modal average mass emissions level, in grams per hour. 
Mass emissions must be calculated as described in Sec.  86.1342.
AP = Modal average power, in brake horse-power. Any power 
measured during the idle mode (mode 1) is not included in this 
calculation.
WF = Weighting factor corresponding to each mode of the 
steady-state test cycle, as defined in paragraph (a) of this section.
i = The modes of the steady-state test cycle defined in paragraph (a) 
of this section.
n = 13, corresponding to the 13 modes of the steady-state test cycle 
defined in paragraph (a) of this section.

    (2) For PM measurements, a single filter must be used to measure PM 
over the 13 modes. The brake-specific PM emission level for the test 
must be calculated as described for a transient hot start test in Sec.  
86.1343. Only the power measured during the sampling period shall be 
used in the calculation.
    (h) The test fuel used for supplemental steady-state testing under 
this section must meet the requirements of Sec.  86.1313.
    (i) Ambient conditions, charge cooling specifications, and intake 
and exhaust restrictions for supplemental steady-state testing and 
maximum allowable emission limit testing under this section must meet 
the requirements of Sec.  86.1330.

[[Page 40441]]


0
46. Section 86.1370-2007 is amended by revising paragraph (a) to read 
as follows:


Sec.  86.1370-2007  Not-To-Exceed test procedures.

    (a) General. The purpose of this test procedure is to measure in-
use emissions of heavy-duty diesel engines while operating within a 
broad range of speed and load points (the Not-To-Exceed Control Area) 
and under conditions which can reasonably be expected to be encountered 
in normal vehicle operation and use. Emission results from this test 
procedure are to be compared to the Not-To-Exceed Limits specified in 
Sec.  86.007-11(a)(4), or to later Not-To-Exceed Limits. The Not-To-
Exceed Limits do not apply for engine-starting conditions. Tests 
conducted using the procedures specified in Sec.  86.1301 are 
considered valid Not-To-Exceed tests (Note: duty cycles and limits on 
ambient conditions do not apply for Not-To-Exceed tests).

0
47. Section 86.1509-84 is amended by revising paragraphs (c) and (d) to 
read as follows:


Sec.  86.1509-84  Exhaust gas sampling system.

* * * * *
    (c) A CVS sampling system with bag or continuous analysis as 
specified in 40 CFR part 1065 is permitted as applicable. The inclusion 
of an additional raw carbon dioxide (CO2) analyzer as 
specified in 40 CFR part 1065 is required if the CVS system is used, in 
order to accurately determine the CVS dilution factor. The heated 
sample line specified in 40CFR part 1065 for raw emission requirements 
is not required for the raw (CO2) measurement.
    (d) A raw exhaust sampling system as specified in 40 CFR part 1065 
is permitted.

0
48. Section 86.1511-84 is amended by revising paragraphs (a)(1) and (b) 
to read as follows:


Sec.  86.1511-84  Exhaust gas analysis system.

    (a) * * *
    (1) The analyzer used shall conform to the accuracy provisions of 
40 CFR part 1065, subparts C, D, and F.
* * * * *
    (b) The inclusion of a raw CO2 analyzer as specified in 
40 CFR part 1065 is required in order to accurately determine the CVS 
dilution factor.

0
49. Section 86.1513-90 is revised to read as follows:


Sec.  86.1513-90  Fuel specifications.

    The requirements of this section are set forth in Sec.  86.1313-94 
for heavy-duty engines, and in Sec.  86.113-90(a) for light-duty 
trucks.

0
50. Section 86.1513-94 is revised to read as follows:


Sec.  86.1513-94  Fuel specifications.

    The requirements of this section are set forth in 40 CFR part 1065, 
subpart H, for heavy-duty engines and in Sec.  86.113-94 for light-duty 
trucks.

0
51. Section 86.1514-84 is amended by revising paragraphs (b) and (c) to 
read as follows:


Sec.  86.1514-84  Analytical gases.

* * * * *
    (b) If the raw CO sampling system specified in 40 CFR part 1065 is 
used, the analytical gases specified in 40 CFR part 1065, subpart H, 
shall be used.
    (c) If a CVS sampling system is used, the analytical gases 
specified in 40 CFR part 1065, subpart H, shall be used.

0
52. Section 86.1519-84 is revised to read as follows:


Sec.  86.1519-84  CVS calibration.

    If the CVS system is used for sampling during the idle emission 
test, the calibration instructions are specified in 40 CFR part 1065, 
subpart D, for heavy-duty engines, and Sec.  86.119-78 for light-duty 
trucks.

0
53. Section 86.1524-84 is revised to read as follows:


Sec.  86.1524-84  Carbon dioxide analyzer calibration.

    (a) The calibration requirements for the dilute-sample 
CO2 analyzer are specified in 40 CFR part 1065, subpart D, 
for heavy-duty engines and Sec.  86.124-78 for light-duty trucks.
    (b) The calibration requirements for the raw CO2 
analyzer are specified in 40 CFR part 1065, subpart D.

0
54. Section 86.1530-84 is amended by revising paragraph (b) to read as 
follows:


Sec.  86.1530-84  Test sequence; general requirements.

* * * * *
    (b) Ambient test cell conditions during the test shall be those 
specified in Sec.  86.130-78 or 40 CFR part 1065, subpart F.

0
55. Section 86.1537-84 is amended by revising paragraphs (c), (e)(6), 
and (f) to read as follows:


Sec.  86.1537-84  Idle test run.

* * * * *
    (c) Achieve normal engine operating condition. The transient engine 
or chassis dynamometer test is an acceptable technique for warm-up to 
normal operating condition for the idle test. If the emission test is 
not performed prior to the idle emission test, a heavy-duty engine may 
be warmed up according to 40 CFR part 1065, subpart F. A light-duty 
truck may be warmed up by operation through one Urban Dynamometer 
Driving Schedule test procedure (see Sec.  86.115-78 and appendix I to 
this part).
* * * * *
    (e) * * *
    (6) For bag sampling, sample idle emissions long enough to obtain a 
sufficient bag sample, but in no case shorter than 60 seconds nor 
longer than 6 minutes. Follow the sampling and exhaust measurements 
requirements of 40 CFR part 1065, subpart F, for conducting the raw 
CO2 measurement.
* * * * *
    (f) If the raw exhaust sampling and analysis technique specified in 
40 CFR part 1065 is used, the following procedures apply:
    (1) Warm up the engine or vehicle per paragraphs (c) and (d) of 
this section. Operate the engine or vehicle at the conditions specified 
in paragraph (e)(4) of this section.
    (2) Follow the sampling and exhaust measurement requirements of 40 
CFR part 1065, subpart F. The idle sample shall be taken for 60 seconds 
minimum, and no more than 64 seconds. The chart reading procedures of 
40 CFR part 1065, subpart F, shall be used to determine the analyzer 
response.
* * * * *

0
56. Section 86.1540-84 is amended by revising paragraphs (b) and (c) to 
read as follows:


Sec.  86.1540-84  Idle exhaust sample analysis.

* * * * *
    (b) If the CVS sampling system is used, the analysis procedures for 
dilute CO and CO2 specified in 40 CFR part 1065 apply. 
Follow the raw CO2 analysis procedure specified in 40 CFR 
part 1065, subpart F, for the raw CO2 analyzer.
    (c) If the continuous raw exhaust sampling technique specified in 
40 CFR part 1065 is used, the analysis procedures for CO specified in 
40 CFR part 1065, subpart F, apply.

0
57. Section 86.1542-84 is amended by revising paragraph (a) 
introductory text to read as follows:


Sec.  86.1542-84  Information required.

    (a) General data--heavy-duty engines. Information shall be recorded 
for each idle emission test as specified in 40 CFR part 1065, subpart 
G. The following test data are required:
* * * * *

0
58. Section 86.1544-84 is amended by revising paragraphs (b)(1), 
(b)(2), and (c) to read as follows:

[[Page 40442]]

Sec.  86.1544-84  Calculation; idle exhaust emissions.

* * * * *
    (b) * * *
    (1) Use the procedures, as applicable, in 40 CFR 1065.650 to 
determine the dilute wet-basis CO and CO2 in percent.
    (2) Use the procedure, as applicable, in 40 CFR 1065.650 to 
determine the raw dry-basis CO2 in percent.
* * * * *
    (c) If the raw exhaust sampling and analysis system specified in 40 
CFR part 1065 is used, the percent for carbon monoxide on a dry basis 
shall be calculated using the procedure, as applicable, in 40 CFR 
1065.650.
* * * * *

0
59. Section 86.1708-99 is amended by revising Tables R99-5 and R99-6 to 
read as follows:


Sec.  86.1708-99  Exhaust emission standards for 1999 and later light-
duty vehicles.

* * * * *
    (c) * * *
    (2) * * *

      Table R99-5.--Intermediate Useful Life (50,000 mile) In-Use Standards (g/mi) for Light-Duty Vehicles
----------------------------------------------------------------------------------------------------------------
                     Vehicle emission category                        Model year   NMOG     CO      NOX    HCHO
----------------------------------------------------------------------------------------------------------------
LEV................................................................         1999   0.100     3.4     0.3   0.015
ULEV...............................................................    1999-2002   0.055     2.1     0.3   0.008
----------------------------------------------------------------------------------------------------------------


          Table R99-6.--Full Useful Life (100,000 mile) In-Use Standards (g/mi) for Light-Duty Vehicles
----------------------------------------------------------------------------------------------------------------
                     Vehicle emission category                        Model year   NMOG     CO      NOX    HCHO
----------------------------------------------------------------------------------------------------------------
LEV................................................................         1999   0.125     4.2     0.4   0.018
ULEV...............................................................    1999-2002   0.075     3.4     0.4   0.011
----------------------------------------------------------------------------------------------------------------

* * * * *
0
60. Section 86.1709-99 is amended by revising paragraph (c)(1) 
introductory text and by revising Table R99-14.2, to read as follows:


Sec.  86.1709-99  Exhaust emission standards for 1999 and later light 
light-duty trucks.

* * * * *
    (c) * * *
    (1) 1999 model year light light-duty trucks certified as LEVs and 
1999 through 2002 model year light light-duty trucks certified as ULEVs 
shall meet the applicable intermediate and full useful life in-use 
standards in paragraph (c)(2) of this section, according to the 
following provisions:
* * * * *
    (e) * * *
    (2) * * *

                   Table R99-14.2.--SFTP Exhaust Emission Standards (g/mi) for LEVs and ULEVs
----------------------------------------------------------------------------------------------------------------
                                                                         US06 Test               A/C Test
----------------------------------------------------------------------------------------------------------------
                   Loaded vehicle weight (lbs)                    MNHC + NOX      CO      NMHC + NOX      CO
----------------------------------------------------------------------------------------------------------------
0-3750..........................................................        0.14         8.0        0.20         2.7
3751-5750.......................................................        0.25        10.5        0.27         3.5
----------------------------------------------------------------------------------------------------------------

* * * * *

0
61. Section 86.1710-99 is amended by revising paragraph (c)(8) 
introductory text to read as follows:


Sec.  86.1710-99  Fleet average non-methane organic gas exhaust 
emission standards for light-duty vehicles and light light-duty trucks.

* * * * *
    (c) * * *
    (8) Manufacturers may earn and bank credits in the NTR for model 
years 1997 and 1998. In states without a Section 177 Program effective 
in model year 1997 or 1998, such credits will be calculated as set 
forth in paragraphs (a) and (b) of this section, except that the 
applicable fleet average NMOG standard shall be 0.25 g/mi NMOG for the 
averaging set for light light-duty trucks from 0-3750 lbs LVW and 
light-duty vehicles or 0.32 g/mi NMOG for the averaging set for light 
light-duty trucks from 3751-5750 lbs LVW. In states that opt into 
National LEV and have a Section 177Program effective in model year 1997 
or 1998, such credits will equal the unused credits earned in those 
states.
* * * * *

0
62. Section 86.1711-99 is amended by revising the section heading and 
paragraph (a) to read as follows:


Sec.  86.1711-99  Limitations on sale of Tier 1 vehicles and TLEVs.

    (a) In the 2001 and subsequent model years, manufacturers may sell 
Tier 1 vehicles and TLEVs in the NTR only if vehicles with the same 
engine families are certified and offered for sale in California in the 
same model year, except as provided under Sec.  86.1707(d)(4).
* * * * *

0
63. Section 86.1807-07 is amended by revising paragraph (h) to read as 
follows:


Sec.  86.1807-07  Vehicle labeling.

* * * * *
    (h) Vehicles powered by model year 2007 and later diesel-fueled 
engines and other diesel vehicles certified using a test fuel with 15 
ppm sulfur or less, must include permanent readily visible labels on 
the dashboard (or instrument panel) and near all fuel inlets that state 
``Use Ultra Low Sulfur Diesel Fuel Only'' or ``Ultra Low Sulfur Diesel 
Fuel Only''.

0
64. Section 86.1808-01 is amended by revising paragraph (f)(19)(iii) to 
read as follows:

[[Page 40443]]

Sec.  86.1808-01  Maintenance instructions.

* * * * *
    (f) * * *
    (19) * * *
    (iii) Any person who violates a provision of this paragraph (f) 
shall be subject to a civil penalty of not more than $32,500 per day 
for each violation. This maximum penalty is shown for calendar year 
2004. Maximum penalty limits for later years may be set higher based on 
the Consumer Price Index, as specified in 40 CFR part 19. In addition, 
such person shall be liable for all other remedies set forth in Title 
II of the Clean Air Act, remedies pertaining to provisions of Title II 
of the Clean Air Act, or other applicable provisions of law.

0
65. Section 86.1808-07 is amended by revising paragraph (g) to read as 
follows:


Sec.  86.1808-07  Maintenance instructions.

* * * * *
    (g) For each new diesel-fueled Tier 2 vehicle (certified using a 
test fuel with 15 ppm sulfur or less), the manufacturer shall furnish 
or cause to be furnished to the purchaser a statement that ``This 
vehicle must be operated only with ultra low sulfur diesel fuel (that 
is, diesel fuel meeting EPA specifications for highway diesel fuel, 
including a 15 ppm sulfur cap).''.

0
66. Section 86.1811-04 is amended by revising Table S04-2 in paragraph 
(c)(6) to read as follows:


Sec.  86.1811-04  Emission standards for light-duty vehicles, light-
duty trucks and medium-duty passenger vehicles.

* * * * *
    (c) * * *
    (6) * * *

           Table S04-2.--Tier 2 and Interim Non-Tier 2 Intermediate Useful Life (50,000 mile) Exhaust Mass Emission Standards (grams per mile)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                  Bin No.                         NOX            NMOG             CO             HCHO             PM                    Notes
--------------------------------------------------------------------------------------------------------------------------------------------------------
11........................................            0.6            0.195             5.0           0.022  ..............  \a\ \c\ \f\ \h\
10........................................            0.4      0.125/0.160         3.4/4.4     0.015/0.018  ..............  \a\ \b\ \d\ \f\ \g\ \h\
9.........................................            0.2      0.075/0.140             3.4           0.015  ..............  \a\ \b\ \e\ \f\ \g\ \h\
8.........................................            0.14     0.100/0.125             3.4           0.015  ..............  \b\ \f\ \h\ \i\
7.........................................            0.11           0.075             3.4           0.015  ..............  \f\ \h\
6.........................................            0.08           0.075             3.4           0.015  ..............  \f\ \h\
5.........................................            0.05           0.075             3.4           0.015  ..............  \f\ \h\
--------------------------------------------------------------------------------------------------------------------------------------------------------
Notes:
\a\ This bin deleted at end of 2006 model year (end of 2008 model year for HLDTs and MDPVs ).
\b\ Higher NMOG, CO and HCHO values apply for HLDTs and MDPVs only.
\c\ This bin is only for MDPVs.
\d\ Optional NMOG standard of 0.195 g/mi applies for qualifying LDT4s and qualifying MDPVs only.
\e\ Optional NMOG standard of 0.100 g/mi applies for qualifying LDT2s only.
\f\ The full useful life PM standards from Table S04-1 also apply at intermediate useful life.
\g\ Intermediate life standards of this bin are optional for diesels.
\h\ Intermediate life standards are optional for vehicles certified to a useful life of 150,000 miles.
\i\ Higher NMOG standard deleted at end of 2008 model year.

* * * * *

0
67. Section 86.1816-08 is amended by revising paragraph (j)(2) to read 
as follows:


Sec.  86.1816-08  Emission standards for complete heavy-duty vehicles.

* * * * *
    (j) * * *
    (2) The in-use adjustments are:
    (i) 0.1 g/mi for NOX.
    (ii) 0.100 g/mi NMHC.
    (iii) 0.01 g/mi for PM.

0
68. Section 86.1834-01 is amended by revising paragraph (b)(4) 
introductory text,(b)(6)(ii) introductory text, and (b)(6)(ii)(D) to 
read as follows:


Sec.  86.1834-01  Allowable maintenance.

* * * * *
    (b) * * *
    (4) For diesel-cycle light-duty vehicles and light-duty trucks, 
emission-related maintenance in addition to, or at shorter intervals 
than the following will not be accepted as technologically necessary, 
except as provided in paragraph (b)(7) of this section:
* * * * *
    (6) * * *
    (ii) All critical emission-related scheduled maintenance must have 
a reasonable likelihood of being performed in use. The manufacturer 
shall be required to show the reasonable likelihood of such maintenance 
being performed in use, and such showing shall be made prior to the 
performance of the maintenance on the durability data vehicle. Critical 
emission-related scheduled maintenance items which satisfy one of the 
following conditions will be accepted as having a reasonable likelihood 
of the maintenance item being performed in use:
* * * * *
    (D) A manufacturer may desire to demonstrate through a survey that 
a critical maintenance item is likely to be performed without a visible 
signal on a maintenance item for which there is no prior in-use 
experience without the signal. To that end, the manufacturer may in a 
given model year market up to 200 randomly selected vehicles per 
critical emission-related maintenance item without such visible 
signals, and monitor the performance of the critical maintenance item 
by the owners to show compliance with paragraph(b)(6)(ii)(B) of this 
section. This option is restricted to two consecutive model years and 
may not be repeated until any previous survey has been completed.
    If the critical maintenance involves more than one test group, the 
sample will be sales weighted to ensure that it is representative of 
all the groups in question.
* * * * *
0
69. In Appendix I to Part 86, paragraph (a) is amended by revising the 
table entries for ``961'' and ``1345'', paragraph (b) is amended by 
revising the table entries for ``363,'' ``405,'' ``453,'' ``491,'' 
``577,'' ``662,'' ``663,'' ``664,'' and ``932'', and paragraph (h) is 
amended by adding table entries for ``595,'' ``596,'' ``597,'' ``598,'' 
``599,'' and ``600'' in numerical order to read as follows:

Appendix I to Part 86--Urban Dynamometer Schedules

    (a) EPA Urban Dynamometer Driving Schedule for Light-Duty 
Vehicles and Light-Duty Trucks.

[[Page 40444]]



                 EPA Urban Dynamometer Driving Schedule
                      [Speed versus Time Sequence]
------------------------------------------------------------------------
                                                               Speed
                      Time  (sec.)                           (m.p.h.)
------------------------------------------------------------------------

                                * * * * *
961.....................................................             5.3

                                * * * * *
1345....................................................            18.3

                                * * * * *
------------------------------------------------------------------------

    (b) EPA Urban Dynamometer Driving Schedule for Light-Duty 
Vehicles, Light-Duty Trucks, and Motorcycles with engine 
displacements equal to or greater than 170 cc (10.4 cu. in.).

                       Speed versus Time Sequence
------------------------------------------------------------------------
                                                               Speed
                     Time  (seconds)                        (kilometers
                                                             per hour)
------------------------------------------------------------------------

                                * * * * *
363.....................................................            52.8

                                * * * * *
405.....................................................            14.8

                                * * * * *
453.....................................................            31.9

                                * * * * *
491.....................................................            55.5

                                * * * * *
577.....................................................            27.4

                                * * * * *
662.....................................................            42.0
663.....................................................            42.2
664.....................................................            42.2

                                * * * * *
932.....................................................            40.2

                                * * * * *
------------------------------------------------------------------------

* * * * *
    (h) EPA SC03 Driving Schedule for Light-Duty Vehicles and Light-
Duty Trucks.

                        EPA SC03 DRIVING SCHEDULE
                      [Speed versus Time Sequence]
------------------------------------------------------------------------
                       Time  (sec)                         Speed  (mph)
------------------------------------------------------------------------

                                * * * * *
595.....................................................             0.0
596.....................................................             0.0
597.....................................................             0.0
598.....................................................             0.0
599.....................................................             0.0
600.....................................................             0.0
------------------------------------------------------------------------

PART 89--CONTROL OF EMISSIONS FROM NEW AND IN-USE NONROAD 
COMPRESSION-IGNITION ENGINES

0
70. The authority citation for part 89 is revised to read as follows:

    Authority: 42 U.S.C. 7401-7671q.


0
71. Section 89.1 is amended by revising paragraph (b)(4)(ii) and adding 
paragraph (c) to read as follows:


Sec.  89.1  Applicability.

* * * * *
    (b) * * *
    (4) * * *
    (ii) Are exempted from the requirements of 40 CFR part 94 by 
exemption provisions of 40 CFR part 94 other than those specified in 40 
CFR 94.907 or 94.912.
* * * * *
    (c) In certain cases, the regulations in this part 89 apply to 
engines at or above 250 kW that would otherwise be covered by 40 CFR 
part 1048. See 40 CFR 1048.620 for provisions related to this 
allowance.

0
72. Section 89.2 is amended by removing the definitions for ``Marine 
diesel engine'' and ``Vessel'', revising the definition of ``United 
States'', and adding definitions for ``Amphibious vehicle'', ``Marine 
engine'', and ``Marine vessel'' to read as follows:


Sec.  89.2  Definitions.

* * * * *
    Amphibious vehicle means a vehicle with wheels or tracks that is 
designed primarily for operation on land and secondarily for operation 
in water.
* * * * *
    Marine engine means a nonroad engine that is installed or intended 
to be installed on a marine vessel. This includes a portable auxiliary 
marine engine only if its fueling, cooling, or exhaust system is an 
integral part of the vessel. There are two kinds of marine engines:
    (1) Propulsion marine engine means a marine engine that moves a 
vessel through the water or directs the vessel's movement.
    (2) Auxiliary marine engine means a marine engine not used for 
propulsion.
    Marine vessel has the meaning given in 1 U.S.C. 3, except that it 
does not include amphibious vehicles. The definition in 1 U.S.C. 3 very 
broadly includes every craft capable of being used as a means of 
transportation on water.
* * * * *
    United States means the States, the District of Columbia, the 
Commonwealth of Puerto Rico, the Commonwealth of the Northern Mariana 
Islands, Guam, American Samoa, and the U.S. Virgin Islands.
* * * * *

0
73. Section 89.102 is amended by revising paragraph (d)(1)(i) to read 
as follows:


Sec.  89.102  Effective dates, optional inclusion, flexibility for 
equipment manufacturers.

* * * * *
    (d) * * *
    (1) * * *
    (i) Equipment rated at or above 37 kW. For nonroad equipment and 
vehicles with engines rated at or above 37 kW, a manufacturer may take 
any of the actions identified in Sec.  89.1003(a)(1) for a portion of 
its U.S.-directed production volume of such equipment and vehicles 
during the seven years immediately following the date on which Tier 2 
engine standards first apply to engines used in such equipment and 
vehicles, provided that the seven-year sum of these portions in each 
year, as expressed as a percentage for each year, does not exceed 80, 
and provided that all such equipment and vehicles or equipment contain 
Tier 1 or Tier 2 engines;
* * * * *

0
74. Section 89.110 is amended by revising paragraph (b)(2) to read as 
follows:


Sec.  89.110  Emission control information label.

* * * * *
    (b) * * *
    (2) The full corporate name and trademark of the manufacturer; 
though the label may identify another company and use its trademark 
instead of the manufacturer's if the provisions of Sec.  89.1009 are 
met.
* * * * *

0
75. Section 89.112 is amended by revising paragraph (f)(3) to read as 
follows:


Sec.  89.112  Oxides of nitrogen, carbon monoxide, hydrocarbon, and 
particulate matter exhaust emission standards.

* * * * *
    (f) * * *
    (3) Test procedures. NOX, NMHC, and PM emissions are 
measured using the procedures set forth in 40 CFR part 1065, in lieu of 
the procedures set forth in subpartE of this part. CO emissions may be 
measured using the procedures set forth either in 40 CFR part 1065 or 
in subpart E of this part. Manufacturers may use an alternate procedure 
to demonstrate the desired level of emission control if approved in 
advance by the Administrator. Engines meeting the requirements to 
qualify as Blue Sky

[[Page 40445]]

Series engines must be capable of maintaining a comparable level of 
emission control when tested using the procedures set forth in 
paragraph (c) of this section and subpart E of this part. The numerical 
emission levels measured using the procedures from subpartE of this 
part may be up to 20 percent higher than those measured using the 
procedures from 40 CFR part 1065 and still be considered comparable.
* * * * *

0
76. Section 89.114 is amended by revising paragraph (b)(3) and adding 
paragraph (b)(4) to read as follows:


Sec.  89.114  Special and alternate test procedures.

* * * * *
    (b) * * *
    (3) A manufacturer may elect to use the test procedures in 40 CFR 
part 1065 as an alternate test procedure without advance approval by 
the Administrator. The manufacturer must identify in its application 
for certification that the engines were tested using the procedures in 
40 CFR part 1065. For any EPA testing with Tier 2 orTier 3 engines, EPA 
will use the manufacturer's selected procedures for mapping engines, 
generating duty cycles, and applying cycle-validation criteria. For any 
other parameters, EPA may conduct testing using either of the specified 
procedures.
    (4) Where we specify mandatory compliance with the procedures of 40 
CFR part 1065, such as in Sec.  89.419, manufacturers may elect to use 
the procedures specified in 40 CFR part 86, subpart N, as an alternate 
test procedure without advance approval by the Administrator.

0
77. Section 89.130 is revised to read as follows:


Sec.  89.130  Rebuild practices.

    The provisions of 40 CFR 1068.120 apply to rebuilding of engines 
subject to the requirements of this part 89, except Tier 1 engines 
rated at or above 37 kW.

0
78. Section 89.301 is amended by revising paragraph (d) to read as 
follows:


Sec.  89.301  Scope; applicability.

* * * * *
    (d) Additional information about system design, calibration 
methodologies, and so forth, for raw gas sampling can be found in 40 
CFR part 1065. Examples for system design, calibration methodologies, 
and so forth, for dilute exhaust gas sampling can be found in 40 CFR 
part 1065.

0
79. Section 89.319 is amended by revising paragraphs (b)(2)(ii) and (c) 
introductory text to read as follows:


Sec.  89.319  Hydrocarbon analyzer calibration.

    (b) * * *
    (2) * * *
    (ii) The HFID optimization procedures outlined in 40 CFR part 1065, 
subpart D.
* * * * *
    (c) Initial and periodic calibration. Prior to introduction into 
service, after any maintenance which could alter calibration, and 
monthly thereafter, the FID or HFID hydrocarbon analyzer shall be 
calibrated on all normally used instrument ranges using the steps in 
this paragraph (c). Use the same flow rate and pressures as when 
analyzing samples. Calibration gases shall be introduced directly at 
the analyzer, unless the ``overflow'' calibration option of 40 CFR part 
1065, subpart F, for the HFID is taken. New calibration curves need not 
be generated each month if the existing curve can be verified as 
continuing to meet the requirements of paragraph (c)(3) of this 
section.
* * * * *

0
80. Section 89.320 is amended by revising paragraph (d) to read as 
follows:


Sec.  89.320  Carbon monoxide analyzer calibration.

* * * * *
    (d) The initial and periodic interference, system check, and 
calibration test procedures specified in 40 CFR part 1065 may be used 
in lieu of the procedures specified in this section.

0
81. Section 89.321 is amended by revising paragraph (d) to read as 
follows:


Sec.  89.321  Oxides of nitrogen analyzer calibration.

* * * * *
    (d) The initial and periodic interference, system check, and 
calibration test procedures specified in 40 CFR part 1065 may be used 
in lieu of the procedures specified in this section.

0
82. Section 89.322 is amended by revising paragraph (b) to read as 
follows:


Sec.  89.322  Carbon dioxide analyzer calibration.

* * * * *
    (b) The initial and periodic interference, system check, and 
calibration test procedures specified in 40 CFR part 1065 may be used 
in lieu of the procedures in this section.

0
83. Section 89.410 is amended by adding paragraph (e) to read as 
follows:


Sec.  89.410  Engine test cycle.

* * * * *
    (e) Manufacturers may optionally use the ramped-modal duty cycles 
corresponding to the discrete-mode duty cycles specified in this 
section, as described in 40 CFR 1039.505.

0
84. Section 89.419 is amended by revising paragraphs (a) introductory 
text, (a)(3)(i),(b)(1) introductory text, (b)(2)(i), (b)(2)(v)(B), 
(b)(4)(ii), and (b)(4)(iii) to read as follows:


Sec.  89.419  Dilute gaseous exhaust sampling and analytical system 
description.

    (a) General. The exhaust gas sampling system described in this 
section is designed to measure the true mass of gaseous emissions in 
the exhaust of petroleum-fueled nonroad compression-ignition engines. 
This system utilizes the CVS concept (described in 40CFR part 1065, 
subparts A and B) of measuring mass emissions of HC, CO, and 
CO2. A continuously integrated system is required for HC and 
NOX measurement and is allowed for all CO and CO2 
measurements. The mass of gaseous emissions is determined from the 
sample concentration and total flow over the test period. As an option, 
the measurement of total fuel mass consumed over a cycle may be 
substituted for the exhaust measurement of CO2. General 
requirements are as follows:
* * * * *
    (3) * * *
    (i) Bag sampling (see 40 CFR part 1065) and analytical capabilities 
(see 40 CFR part 1065), as shown in Figure 2 and Figure 3 in appendix A 
to this subpart; or
* * * * *
    (b) * * *
    (1) Exhaust dilution system. The PDP-CVS shall conform to all of 
the requirements listed for the exhaust gas PDP-CVS in 40 CFR part 
1065. The CFV-CVS shall conform to all the requirements listed for the 
exhaust gas CFV-CVS in 40 CFR part 1065. In addition, the CVS must 
conform to the following requirements:
* * * * *
    (2) * * *
    (i) The continuous HC sample system (as shown in Figure 2 or 3 in 
appendix A to this subpart) uses an ``overflow'' zero and span system. 
In this type of system, excess zero or span gas spills out of the probe 
when zero and span checks of the analyzer are made. The ``overflow'' 
system may also be used to calibrate the HC analyzer according to 40 
CFR part 1065, subpart F, although this is not required.
* * * * *
    (v) * * *
    (B) Have a wall temperature of 191 [deg]C 11 [deg]C 
over its entire length. The temperature of the system shall be 
demonstrated by profiling the thermal characteristics of the system 
where possible at initial installation and after

[[Page 40446]]

any major maintenance performed on the system. The profiling shall be 
accomplished using the insertion thermocouple probing technique. The 
system temperature will be monitored continuously during testing at the 
locations and temperature described in 40 CFR 1065.145.
* * * * *
    (4) * * *
    (ii) The continuous NOX, CO, or CO2 sampling 
and analysis system shall conform to the specifications of 40 CFR 
1065.145 with the following exceptions and revisions:
    (A) The system components required to be heated by 40 CFR 1065.145 
need only be heated to prevent water condensation, the minimum 
component temperature shall be 55 [deg]C.
    (B) The system response shall meet the specifications in 40 CFR 
part 1065, subpart C.
    (C) Alternative NOX measurement techniques outlined in 
40 CFR part 1065, subpart D, are not permitted for NOX 
measurement in this subpart.
    (D) All analytical gases must conform to the specifications of 
Sec.  89.312.
    (E) Any range on a linear analyzer below 155 ppm must have and use 
a calibration curve conforming to Sec.  89.310.
    (iii) The chart deflections or voltage output of analyzers with 
non-linear calibration curves shall be converted to concentration 
values by the calibration curve(s) specified in Sec.  89.313 before 
flow correction (if used) and subsequent integration takes place.

0
85. Section 89.421 is amended by revising paragraphs (b) and (c) to 
read as follows:


Sec.  89.421  Exhaust gas analytical system; CVS bag sample.

* * * * *
    (b) Major component description. The analytical system, Figure 4 in 
appendix A to this subpart, consists of a flame ionization detector 
(FID) (heated for petroleum-fueled compression-ignition engines to 191 
[deg]C 6 [deg]C) for the measurement of hydrocarbons, 
nondispersive infrared analyzers (NDIR) for the measurement of carbon 
monoxide and carbon dioxide, and a chemiluminescence detector (CLD) (or 
HCLD) for the measurement of oxides of nitrogen. The exhaust gas 
analytical system shall conform to the following requirements:
    (1) The CLD (or HCLD) requires that the nitrogen dioxide present in 
the sample be converted to nitric oxide before analysis. Other types of 
analyzers may be used if shown to yield equivalent results and if 
approved in advance by the Administrator.
    (2) If CO instruments are used which are essentially free of 
CO2 and water vapor interference, the use of the 
conditioning column may be deleted. (See 40 CFR part 1065, subpart D.)
    (3) A CO instrument will be considered to be essentially free of 
CO2 and water vapor interference if its response to a 
mixture of 3 percent CO2 in N2, which has been bubbled 
through water at room temperature, produces an equivalent CO response, 
as measured on the most sensitive CO range, which is less than 1 
percent of full scaleCO concentration on ranges above 300 ppm full 
scale or less than 3 ppm on ranges below 300 ppm full scale. (See 40 
CFR part 1065, subpart D.)
    (c) Alternate analytical systems. Alternate analysis systems 
meeting the specifications of 40 CFR part 1065, subpart A, may be used 
for the testing required under this subpart. Heated analyzers may be 
used in their heated configuration.
* * * * *

0
86. Section 89.424 is amended by revising the note at the end of 
paragraph (d)(3) to read as follows:


Sec.  89.424  Dilute emission sampling calculations.

* * * * *
    (d) * * *
    (3) * * *
    (Note: If a CO instrument that meets the criteria specified in 40 
CFR part 1065, subpart C, is used without a sample dryer according to 
40 CFR 1065.145, COem must be substituted directly for 
COe and COdm must be substituted directly for 
COd.)
* * * * *

0
87. Appendix A to Subpart F is amended by revising Table 1 to read as 
follows:

Appendix A to Subpart F of Part 89--Sampling Plans for Selective 
Enforcement Auditing of Nonroad Engines

                   Table 1.--Sampling Plan Code Letter
------------------------------------------------------------------------
                                                                   Code
                   Annual engine family sales                     letter
------------------------------------------------------------------------
20-50..........................................................     AA 1
20-99..........................................................        A
100-299........................................................        B
300-499........................................................        C
500 or greater.................................................        D
------------------------------------------------------------------------
1 A manufacturer may optionally use either the sampling plan for code
  letter ``AA'' or sampling plan for code letter ``A'' for Selective
  Enforcement Audits of engine families with annual sales between 20 and
  50 engines. Additionally, the manufacturer may switch between these
  plans during the audit.

* * * * *

0
88. Section 89.603 is amended by adding paragraph (e) to read as 
follows:


Sec.  89.603  General requirements for importation of nonconforming 
nonroad engines.

* * * * *
    (e)(1) The applicable emission standards for engines imported by an 
ICI under this subpart are the emission standards applicable to the 
Original Production (OP) year of the engine.
    (2) Where engine manufacturers have choices in emission standards 
for one or more pollutants in a given model year, the standard that 
applies to the ICI is the least stringent standard for that pollutant 
applicable to the OP year for the appropriate power category.
    (3) ICIs may not generate, use or trade emission credits or 
otherwise participate in any way in the averaging, banking and trading 
program.
    (4) An ICI may import no more than a total of five engines under 
this part for any given model year, except as allowed by paragraph 
(e)(5) of this section. For ICIs owned by a parent company, the 
importation limit includes importation by the parent company and all 
its subsidiaries.
    (5) An ICI may exceed the limit outlined in paragraph (e)(4) of 
this section, provided that any engines in excess of the limit meet the 
emission standards and other requirements outlined in the applicable 
provisions of Part 89 or 1039 of this chapter for the model year in 
which the engine is modified (instead of the emission standards and 
other requirements applicable for the OP year of the vehicle/engine).

0
89. Section 89.611 is amended by revising paragraph (b)(1) to read as 
follows:


Sec.  89.611  Exemptions and exclusions.

* * * * *
    (b) * * *
    (1) Exemption for repairs or alterations. A person may 
conditionally import under bond a nonconforming engine solely for 
purpose of repairs or alterations. The engine may not be operated in 
the United States other than for the sole purpose of repair or 
alteration or shipment to the point of repair or alteration and to the 
port of export. It may not be sold or leased in the United States and 
is to be exported upon completion of the repairs or alterations.
* * * * *

0
90. Section 89.612 is amended by revising paragraph (d) to read as 
follows:


Sec.  89.612  Prohibited acts; penalties.

* * * * *

[[Page 40447]]

    (d) An importer who violates section 213(d) and section 203 of the 
Act is subject to the provisions of section 209 of the Act and is also 
subject to a civil penalty under section 205 of the Act of not more 
than $32,500 for each nonroad engine subject to the violation.
    In addition to the penalty provided in the Act, where applicable, a 
person or entity who imports an engine under the exemption provisions 
of Sec.  89.611(b) and, who fails to deliver the nonroad engine to the 
U.S. Customs Service is liable for liquidated damages in the amount of 
the bond required by applicable Customs laws and regulations. The 
maximum penalty value listed in this paragraph (d) is shown for 
calendar year 2004. Maximum penalty limits for later years may be 
adjusted based on the Consumer Price Index. The specific regulatory 
provisions for changing the maximum penalties, published in 40 CFR part 
19, reference the applicable U.S. Code citation on which the prohibited 
action is based.
* * * * *

0
91. A new Sec.  89.614 is added to subpart G to read as follows:


Sec.  89.614  Importation of partially complete engines.

    The provisions of 40 CFR 1068.330 apply for importation of 
partially complete engines, or engines that will be modified for 
applications other than those covered by this part 89.

0
92. A new Sec.  89.913 is added to subpart J to read as follows:


Sec.  89.913  What provisions apply to engines certified under the 
motor-vehicle program?

    You may use the provisions of 40 CFR 1039.605 to introduce new 
nonroad engines into commerce if they are already certified to the 
requirements that apply to compression-ignition engines under 40 CFR 
parts 85 and 86. However, when using the provisions of 40 CFR 1039.605, 
references to this part 89 or sections in this part shall be used 
instead of references to 40 CFR part 1039 or sections in that part.

0
93. A new Sec.  89.914 is added to subpart J to read as follows:


Sec.  89.914  What provisions apply to vehicles certified under the 
motor-vehicle program?

    You may use the provisions of 40 CFR 1039.610 to introduce new 
nonroad engines or equipment into commerce if the vehicle is already 
certified to the requirements that apply under 40 CFR parts 85 and 86. 
However, when using the provisions of 40 CFR 1039.610, references to 
this part 89 or sections in this part shall be used instead of 
references to 40 CFR part 1039 or sections in that part.

0
94. A new Sec.  89.915 is added to subpart J to read as follows:


Sec.  89.915  Staged-assembly exemption.

    You may ask us to provide a temporary exemption to allow you to 
complete production of your engines at different facilities, as long as 
you maintain control of the engines until they are in their certified 
configuration. We may require you to take specific steps to ensure that 
such engines are in their certified configuration before reaching the 
ultimate purchaser. You may request an exemption under this section in 
your application for certification, or in a separate submission.

0
95. Section 89.1003 is amended by removing and reserving paragraphs 
(b)(5) and (b)(6), redesignating (b)(7)(iv) as (b)(7)(vii), revising 
paragraphs (a)(3)(iii), (b)(7)(ii), and(b)(7)(iii), and adding 
paragraphs (b)(7)(iv) and (b)(7)(viii) to read as follows:


Sec.  89.1003  Prohibited acts.

    (a) * * *
    (3) * * *
    (iii) For a person to deviate from the provisions of Sec.  89.130 
when rebuilding an engine (or rebuilding a portion of an engine or 
engine system). Such a deviation violates paragraph (a)(3)(i) of this 
section.
* * * * *
    (b) * * *
    (7) * * *
    (ii) The engine manufacturer or its agent takes ownership and 
possession of the engine being replaced or confirms that the engine has 
been destroyed; and
    (iii) If the engine being replaced was not certified to any 
emission standards under this part, the replacement engine must have a 
permanent label with your corporate name and trademark and the 
following language, or similar alternate language approved by the 
Administrator: THIS ENGINE DOES NOT COMPLY WITH FEDERAL NONROAD OR ON-
HIGHWAY EMISSION REQUIREMENTS. SALE OR INSTALLATION OF THIS ENGINE FOR 
ANY PURPOSE OTHER THAN AS A REPLACEMENT ENGINE FOR AN ENGINE 
MANUFACTURED PRIOR TO JANUARY 1 [INSERT APPROPRIATE YEAR] IS A 
VIOLATION OF FEDERAL LAW SUBJECT TO CIVIL PENALTY.
    (iv) If the engine being replaced was certified to emission 
standards less stringent than those in effect when you produce the 
replacement engine, the replacement engine must have a permanent label 
with your corporate name and trademark and the following language, or 
similar alternate language approved by the Administrator: THIS ENGINE 
COMPLIES WITH U.S. EPA NONROAD EMISSIONREQUIREMENTS FOR [Insert 
appropriate year reflecting when the Tier 1 or Tier 2 standards for the 
replaced engine began to apply] ENGINES UNDER 40 CFR 89.1003(b)(7). 
SELLING OR INSTALLING THIS ENGINE FOR ANY PURPOSE OTHER THAN TO REPLACE 
A NONROAD ENGINE BUILT BEFORE JANUARY 1, [Insert appropriate year 
reflecting when the next tier of emission standards began to apply] MAY 
BE A VIOLATION OF FEDERAL LAW SUBJECT TO CIVIL PENALTY.
* * * * *
    (viii) The provisions of this section may not be used to circumvent 
emission standards that apply to new engines under this part.

0
96. Section 89.1006 is amended by revising paragraphs (a)(1), (a)(2), 
(a)(5), and (c)(1) and adding paragraph (a)(6) to read as follows:


Sec.  89.1006  Penalties.

    (a) * * *
    (1) A person who violates Sec.  89.1003(a)(1), (a)(4), or (a)(6), 
or a manufacturer or dealer who violates Sec.  89.1003(a)(3)(i), is 
subject to a civil penalty of not more than $32,500 for each violation.
    (2) A person other than a manufacturer or dealer who violates Sec.  
89.1003(a)(3)(i) or any person who violates Sec.  89.1003(a)(3)(ii) is 
subject to a civil penalty of not more than $2,750 for each violation.
* * * * *
    (5) A person who violates Sec.  89.1003(a)(2) or (a)(5) is subject 
to a civil penalty of not more than $32,500 per day of violation.
    (6) The maximum penalty values listed in this section are shown for 
calendar year 2004. Maximum penalty limits for later years may be 
adjusted based on the Consumer Price Index. The specific regulatory 
provisions for changing the maximum penalties, published in 40 CFR part 
19, reference the applicable U.S. Code citation on which the prohibited 
action is based.
* * * * *
    (c) * * *
    (1) Administrative penalty authority. In lieu of commencing a civil 
action under paragraph (b) of this section, the Administrator may 
assess any civil penalty prescribed in paragraph (a) of this section, 
except that the maximum amount of penalty sought against each violator 
in a penalty assessment proceeding shall not exceed $270,000, unless 
the Administrator and the Attorney General jointly determine that a 
matter involving a larger penalty

[[Page 40448]]

amount is appropriate for administrative penalty assessment. Any such 
determination by the Administrator and the Attorney General is not 
subject to judicial review. Assessment of a civil penalty shall be by 
an order made on the record after opportunity for a hearing held in 
accordance with the procedures found at part 22 of this chapter. The 
Administrator may compromise, or remit, with or without conditions, any 
administrative penalty which may be imposed under this section.
* * * * *

0
97. A new Sec.  89.1009 is added to subpart K to read as follows:


Sec.  89.1009  What special provisions apply to branded engines?

    A manufacturer identifying the name and trademark of another 
company on the emission control information label, as provided by Sec.  
89.110(b)(2), must comply with the provisions of 40 CFR 1039.640.

PART 90--CONTROL OF EMISSIONS FROM NONROAD SPARK-IGNITION ENGINES 
AT OR BELOW 19 KILOWATTS

0
98. The authority citation for part 90 is revised to read as follows:

    Authority: 42 U.S.C. 7401--7671q.

0
99. Section 90.1 is amended by revising paragraphs (b) and (d)(5) and 
adding text to paragraph (c) to read as follows:


Sec.  90.1  Applicability.

* * * * *
    (b) In certain cases, the regulations in this part 90 also apply to 
new engines with a gross power output above 19 kW that would otherwise 
be covered by 40 CFR part 1048 or 1051. See 40 CFR 1048.615 or 
1051.145(a)(3) for provisions related to this allowance.
    (c) In certain cases, the regulations in this part 90 apply to new 
engines below 50 cc used in motorcycles that are motor vehicles. See 40 
CFR 86.447-2006 for provisions related to this allowance.
    (d) * * *
    (5) Engines certified to meet the requirements of 40 CFR part 1048, 
subject to the provisions of Sec.  90.913.
* * * * *

0
100. Section 90.3 is amended by revising the definitions for Marine 
engine, Marine vessel, and United States and adding definitions for 
Amphibious vehicle, Good engineering judgment, and Maximum engine power 
in alphabetical order to read as follows:


Sec.  90.3  Definitions.

* * * * *
    Amphibious vehicle means a vehicle with wheels or tracks that is 
designed primarily for operation on land and secondarily for operation 
in water.
* * * * *
    Good engineering judgment has the meaning given in 40 CFR 1068.30. 
See 40 CFR 1068.5 for the administrative process we use to evaluate 
good engineering judgment.
* * * * *
    Marine engine means a nonroad engine that is installed or intended 
to be installed on a marine vessel. This includes a portable auxiliary 
marine engine only if its fueling, cooling, or exhaust system is an 
integral part of the vessel. There are two kinds of marine engines:
    (1) Propulsion marine engine means a marine engine that moves a 
vessel through the water or directs the vessel's movement.
    (2) Auxiliary marine engine means a marine engine not used for 
propulsion.
    Marine vessel has the meaning given in 1 U.S.C. 3, except that it 
does not include amphibious vehicles. The definition in 1 U.S.C. 3 very 
broadly includes every craft capable of being used as a means of 
transportation on water.
    Maximum engine power means the maximum value of gross power at 
rated speed.
* * * * *
    United States means the States, the District of Columbia, the 
Commonwealth of Puerto Rico, the Commonwealth of the Northern Mariana 
Islands, Guam, American Samoa, and the U.S. Virgin Islands.
* * * * *

0
101. Section 90.119 is amended by revising paragraph (a)(1)(i) to read 
as follows:


Sec.  90.119  Certification procedure--testing.

    (a) * * *
    (1) * * *
    (i) Class I and II engines must use the test cycle that is 
appropriate for their application. Engines that operate only at 
intermediate speed must use Test Cycle A, which is described in Table 2 
of Appendix A to subpart E of this part. Engines that operate only at 
rated speed must use Test Cycle B, which is described in Table 2 of 
Appendix A to subpart E of this part. If an engine family includes 
engines used in both rated-speed and intermediate-speed applications, 
the manufacturer must select the duty cycle that will result in worst-
case emission results for certification. For any testing after 
certification, the engine must be tested using the most appropriate 
test cycle based on the engine's installed governor.
* * * * *

0
102. Section 90.120 is amended by adding and reserving paragraph (b)(3) 
and adding paragraph (b)(4) to read as follows:


Sec.  90.120  Certification procedure--use of special test procedures.

* * * * *
    (b) * * *
    (3) [Reserved]
    (4) Where we specify mandatory compliance with the procedures of 40 
CFR part 1065, manufacturers may elect to use the procedures specified 
in 40 CFR part 86, subpart N, as an alternate test procedure without 
advance approval by the Administrator.
* * * * *

0
103. Section 90.301 is amended by revising paragraphs (c) and (d) to 
read as follows:


Sec.  90.301  Applicability.

* * * * *
    (c) Additional information about system design, calibration 
methodologies, and so forth, for raw gas sampling can be found in 40 
CFR part 1065. Examples for system design, calibration methodologies, 
and so forth, for dilute exhaust gas sampling can be found in 40 CFR 
part 1065.
    (d) For Phase 2 Class I, Phase 2 Class I-B, and Phase 2 Class II 
natural gas fueled engines, use the procedures of 40 CFR part 1065 to 
measure nonmethane hydrocarbon (NMHC) exhaust emissions from Phase 2 
Class I, Phase 2 Class I-B, and Phase 2 Class II natural gas fueled 
engines.

0
104. Section 90.308 is amended by revising paragraph (b)(1) to read as 
follows:


Sec.  90.308  Lubricating oil and test fuels.

* * * * *
    (b) * * *
    (1) The manufacturer must use gasoline having the specifications, 
or substantially equivalent specifications approved by the 
Administrator, as specified in Table 3 in Appendix A of this subpart 
for exhaust emission testing of gasoline fueled engines. As an option, 
manufacturers may use the fuel specified in 40 CFR part 1065, subpart 
H, for gasoline-fueled engines.
* * * * *

0
105. Section 90.316 is amended by revising paragraphs (b)(2)(ii) and 
(c) introductory text to read as follows:


Sec.  90.316  Hydrocarbon analyzer calibration.

* * * * *
    (b) * * *
    (2) * * *

[[Page 40449]]

    (ii) The HFID optimization procedures outlined in 40 CFR part 1065, 
subpart D.
* * * * *
    (c) Initial and periodic calibration. Prior to initial use and 
monthly thereafter, or within one month prior to the certification 
test, the FID or HFID hydrocarbon analyzer must be calibrated on all 
normally used instrument ranges using the steps in this paragraph. Use 
the same flow rate and pressures as when analyzing samples. Introduce 
calibration gases directly at the analyzer. An optional method for 
dilute sampling described in 40 CFR part 1065, subpart F, may be used.
* * * * *

0
106. Section 90.318 is amended by revising paragraph (d) to read as 
follows:


Sec.  90.318  Oxides of nitrogen analyzer calibration.

* * * * *
    (d) The initial and periodic interference, system check, and 
calibration test procedures specified in 40 CFR part 1065, subpart D, 
may be used in lieu of the procedures specified in this section.

0
107. Section 90.320 is amended by revising paragraph (b) to read as 
follows:


Sec.  90.320  Carbon dioxide analyzer calibration.

* * * * *
    (b) The initial and periodic interference, system check, and 
calibration test procedures specified in 40 CFR part 1065, subparts C 
and D, may be used in lieu of the procedures in this section.

0
108. Section 90.324 is amended by revising paragraphs (a)(3) and (b) to 
read as follows:


Sec.  90.324  Analyzer leakage check.

    (a) * * *
    (3) The sample probe and the connection between the sample probe 
and valve V2, see Figure 1 in Appendix B of subpart E of this part, may 
be excluded from the leak check.
    (b) Pressure-side leak check. Substantial leaks of the sample on 
the pressure side of the system may impact sample integrity if the 
leaks are of sufficient magnitude. As a safety precaution, good 
engineering practice would require that manufacturers perform periodic 
pressure-side leak checks of the sampling system. The recommended 
maximum leakage rate on the pressure side is five percent of the in-use 
flow rate.
0
109. Section 90.326 is amended by revising the introductory text, and 
paragraphs (a) and (e)(4) to read as follows:


Sec.  90.326  Pre- and post-test analyzer calibration.

    Calibrate only the range of each analyzer used during the engine 
exhaust emission test prior to and after each test in accordance with 
the following:
    (a) Make the calibration by using a zero gas and a span gas. The 
span gas value must be between 75 and 100 percent of the highest range 
used.
* * * * *
    (e) * * *
    (4) If the response of the zero gas or span gas differs more than 
one percent of full scale at the highest range used, then repeat 
paragraphs (e)(1) through (3) of this section.

0
110. Section 90.401 is amended by revising paragraph (d) to read as 
follows:


Sec.  90.401  Applicability.

* * * * *
    (d) For Phase 2 Class I, Phase 2 Class I-B, and Phase 2 Class II 
natural gas fueled engines, use the equipment specified in 40 CFR part 
1065, subparts D and E, to measure nonmethane hydrocarbon (NMHC) 
exhaust emissions from Phase 2 Class I, Phase 2 Class I-B, and Phase 2 
Class II natural gas fueled engines.

0
111. Section 90.405 is amended by removing paragraph (d)(10).

0
112. Section 90.408 is amended by revising paragraph (b)(2) to read as 
follows:


Sec.  90.408  Pre-test procedures.

* * * * *
    (b) * * *
    (2) An evaluation of the effects of test measurement systems on 
engine emissions shall be conducted using good engineering judgment to 
ensure that such test systems do not significantly impact exhaust 
emissions from the engine. For example, this would require evaluation 
of all types of emission sampling systems, and of fuel- and air-flow 
measurement systems for raw sampling. This can be accomplished by 
operating the engine at the highest engine torque value that will be 
encountered on the test cycle before and after such test systems are 
installed to ensure that the impact on measured torque is less than 5 
percent. This may also be accomplished by measuring air-to-fuel ratio 
using a zirconia universal exhaust gas oxygen (UEGO) sensor to ensure 
that the impact on measured air-to-fuel ratio is less than 5 percent at 
the highest engine torque value that will be encountered on the test 
cycle before and after such test systems are installed. The impact of 
air- and fuel-flow measurement systems may be evaluated based on an 
engineering analysis of the impact of the change in pressure induced on 
air-intake pressure and fuel supply pressure by these measurement 
systems. While this would typically be done before testing, it may also 
be done as a post-test verification.
* * * * *

0
113. Section 90.409 is amended by revising paragraph (c)(6) to read as 
follows:


Sec.  90.409  Engine dynamometer test run.

* * * * *
    (c) * * *
    (6) If, during the emission measurement portion of a mode, the 
value of the gauges downstream of the NDIR analyzer(s) G3 or G4 (see 
Figure 1 in Appendix B of this subpart), differs by more than < plus-
minus>0.5kPa from the pretest value, the test mode is void.

0
114. Section 90.417 is revised to read as follows:


Sec.  90.417  Fuel flow measurement specifications.

    (a) Fuel flow measurement is required only for raw testing. Fuel 
flow is allowed for dilute testing.
    (b) The fuel flow measurement instrument must have a minimum 
accuracy of one percent of full-scale flow rate for each measurement 
range used. An exception is allowed for the idle mode. For this mode, 
the minimum accuracy is  five percent of full-scale flow 
rate for the measurement range used. The controlling parameters are the 
elapsed time measurement of the event and the weight or volume 
measurement. You may apply the accuracy specifications of 40 CFR part 
1065, subpart C, instead of those in this paragraph(b).

0
115. Section 90.418 is revised to read as follows:


Sec.  90.418  Data evaluation for gaseous emissions.

    For the evaluation of the gaseous emissions recording, record the 
last two minutes of each mode and determine the average values for HC, 
CO, CO2 and NOX during each mode from the average 
concentration readings determined from the corresponding calibration 
data. Longer averaging times are acceptable, but the reported sampling 
period must be a continuous set of data.

0
116. Section 90.419 is amended by removing paragraph (e) and revising 
the equations for KH and H in paragraphs (b) and (c) to read 
as follows:


Sec.  90.419  Raw emission sampling calculations--gasoline fueled 
engines.

* * * * *
    (b) * * *
KH = Factor for correcting the effects of humidity on 
NO2 formation for 4-

[[Page 40450]]

stroke gasoline small engines, as follows:

KH = (9.953 x H + 0.832)


Where:

H = the amount of water in an ideal gas; 40 CFR 1065.645 describes how 
to determine this value (referred to as xH2O).
KH = 1 for two-stroke gasoline engines.

    (c) * * *

    KH = Factor for correcting the effects of humidity on 
NO2 formation for 4-stroke gasoline small engines, as 
follows:
    KH = (9.953 x H + 0.832)


Where:

H = the amount of water in an ideal gas; 40 CFR 1065.645 describes how 
to determine this value (referred to as xH2O).
KH = 1 for two-stroke gasoline engines.
* * * * *

0
117. Section 90.421 is amended by revising paragraph (b) introductory 
text and (b)(4)(ii) introductory text to read as follows:


Sec.  90.421  Dilute gaseous exhaust sampling and analytical system 
description.

* * * * *
    (b) Component description. The components necessary for exhaust 
sampling must meet the following requirements:
* * * * *
    (4) * * *
    (ii) Conform to the continuous NOX, CO, or 
CO2 sampling and analysis system to the specifications of 40 
CFR 1065.145, with the following exceptions and revisions:
* * * * *

0
118. Section 90.426 is amended by removing and reserving paragraphs (f) 
and (g) and revising paragraph (e) to read as follows:


Sec.  90.426  Dilute emission sampling calculations--gasoline fueled 
engines.

* * * * *
    (e) The humidity correction factor KH is an adjustment 
made to measured NOX values. This corrects for the 
sensitivity that a spark-ignition engine has to the humidity of its 
combustion air. The following formula is used to determine 
KH for NOX calculations:

KH = (9.953 H + 0.832)


Where:

H = the amount of water in an ideal gas; 40 CFR 1065.645 describes how 
to determine this value (referred to as xH2O).

KH = 1 for two-stroke gasoline engines.

    (f) [Reserved]
    (g) [Reserved]
* * * * *

0
119. Section 90.612 is amended by revising paragraph (b)(1) to read as 
follows:


Sec.  90.612  Exemptions and exclusions.

* * * * *
    (b) * * *
    (1) Exemption for repairs or alterations. A person may 
conditionally import under bond a nonconforming engine solely for 
purpose of repairs or alterations. The engine may not be operated in 
the United States other than for the sole purpose of repair or 
alteration or shipment to the point of repair or alteration and to the 
port of export. It may not be sold or leased in the United States and 
is to be exported upon completion of the repairs or alterations.
* * * * *

0
120. Section 90.613 is amended by revising paragraph (d) to read as 
follows:


Sec.  90.613  Prohibited acts; penalties.

* * * * *
    (d) An importer who violates section 213(d) and section 203 of the 
Act is subject to a civil penalty under section 205 of the Act of not 
more than $32,500 for each engine subject to the violation. In addition 
to the penalty provided in the Act, where applicable, under the 
exemption provisions of Sec.  90.612(b), a person or entity who fails 
to deliver the engine to the U.S. Customs Service is liable for 
liquidated damages in the amount of the bond required by applicable 
Customs laws and regulations. The maximum penalty value listed in this 
paragraph (d) is shown for calendar year 2004. Maximum penalty limits 
for later years may be adjusted based on the Consumer Price Index. The 
specific regulatory provisions for changing the maximum penalties, 
published in 40 CFR part 19, reference the applicable U.S. Code 
citation on which the prohibited action is based.

0
121. A new Sec.  90.615 is added to subpart G to read as follows:


Sec.  90.615  Importation of partially complete engines.

    The provisions of 40 CFR 1068.330 apply for importation of 
partially complete engines, or engines that will be modified for 
applications other than those covered by this part 90.

0
122. Section 90.706 is amended by revising the equation for N in 
paragraph (b)(1) to read as follows:


Sec.  90.706  Engine sample selection.

* * * * *
    (b) * * *
    [GRAPHIC] [TIFF OMITTED] TR13JY05.006
    
* * * * *

0
123. A new Sec.  90.913 is added to subpart J to read as follows:


Sec.  90.913  Exemption for engines certified to standards for large SI 
engines.

    (a) An engine is exempt from the requirements of this part if it is 
in an engine family that has a valid certificate of conformity showing 
that it meets emission standards and other requirements under 40 CFR 
part 1048 for the appropriate model year.
    (b) The only requirements or prohibitions from this part that apply 
to an engine that is exempt under this section are in this section.
    (c) If your engines do not have the certificate required in 
paragraph (a) of this section, they will be subject to the provisions 
of this part. Introducing these engines into commerce without a valid 
exemption or certificate of conformity violates the prohibitions in 
Sec.  90.1003.
    (d) Engines exempted under this section are subject to all the 
requirements affecting engines under 40 CFR part 1048. The requirements 
and restrictions of 40 CFR part 1048 apply to anyone manufacturing 
these engines, anyone manufacturing equipment that uses these engines, 
and all other persons in the same manner as if these were nonroad 
spark-ignition engines above 19 kW.
    (e) Engines exempted under this section may not generate or use 
emission credits under this part 90.

0
124. Section 90.1006 is amended by revising paragraphs (a)(1), (a)(2), 
(a)(5), and (c)(1) and adding paragraph (a)(6) to read as follows:


Sec.  90.1006  Penalties.

    (a) * * *
    (1) A person who violates Sec.  90.1003(a)(1), (a)(4), or (a)(5), 
or a manufacturer or dealer who violates Sec.  90.1003(a)(3)(i), is 
subject to a civil penalty of not more than $32,500 for each violation.
    (2) A person other than a manufacturer or dealer who violates Sec.  
90.1003(a)(3)(i) or any person who violates Sec.  90.1003(a)(3)(ii) is 
subject to a civil penalty of not more than $2,750 for each violation.
* * * * *
    (5) A person who violates Sec.  90.1003(a)(2) or (a)(6) is subject 
to a civil penalty of not more than $32,500 per day of violation.
    (6) The maximum penalty values listed in this section are shown for

[[Page 40451]]

calendar year 2004. Maximum penalty limits for later years may be 
adjusted based on the Consumer Price Index. The specific regulatory 
provisions for changing the maximum penalties, published in 40 CFR part 
19, reference the applicable U.S. Code citation on which the prohibited 
action is based.
* * * * *
    (c) * * *
    (1) Administrative penalty authority. In lieu of commencing a civil 
action under paragraph (b) of this section, the Administrator shall 
assess any civil penalty prescribed in paragraph (a) of this section, 
except that the maximum amount of penalty sought against each violator 
in a penalty assessment proceeding can not exceed $270,000, unless the 
Administrator and the Attorney General jointly determine that a matter 
involving a larger penalty amount is appropriate for administrative 
penalty assessment. Any such determination by the Administrator and the 
Attorney General is not subject to judicial review. Assessment of a 
civil penalty is made by an order made on the record after opportunity 
for a hearing held in accordance with the procedures found at part 22 
of this chapter. The Administrator may compromise, or remit, with or 
without conditions, any administrative penalty which may be imposed 
under this section.
* * * * *

PART 91--CONTROL OF EMISSIONS FROM MARINE SPARK-IGNITION ENGINES

0
125. The authority citation for part 91 is revised to read as follows:

    Authority: 42 U.S.C. 7401--7671q.

0
126. Section 91.3 is amended by revising the definitions for ``Marine 
spark-ignition engine'', ``Marine vessel'', and ``United States'', 
adding definitions for ``Amphibious vehicle'', ``Marine engine'', and 
``Spark-ignition'' in alphabetical order to read as follows:


Sec.  91.3  Definitions.

* * * * *
    Amphibious vehicle means a vehicle with wheels or tracks that is 
designed primarily for operation on land and secondarily for operation 
in water.
* * * * *
    Marine engine means a nonroad engine that is installed or intended 
to be installed on a marine vessel. This includes a portable auxiliary 
marine engine only if its fueling, cooling, or exhaust system is an 
integral part of the vessel. There are two kinds of marine engines:
    (1) Propulsion marine engine means a marine engine that moves a 
vessel through the water or directs the vessel's movement.
    (2) Auxiliary marine engine means a marine engine not used for 
propulsion.
* * * * *
    Marine spark-ignition engine means a spark-ignition marine engine 
that propels a marine vessel.
    Marine vessel has the meaning given in 1 U.S.C. 3, except that it 
does not include amphibious vehicles. The definition in 1 U.S.C. 3 very 
broadly includes every craft capable of being used as a means of 
transportation on water.
* * * * *
    Spark-ignition means relating to a gasoline-fueled engine or any 
other type of engine with a spark plug (or other sparking device) and 
with operating characteristics significantly similar to the theoretical 
Otto combustion cycle. Spark-ignition engines usually use a throttle to 
regulate intake air flow to control power during normal operation.
* * * * *
    United States means the States, the District of Columbia, the 
Commonwealth of Puerto Rico, the Commonwealth of the Northern Mariana 
Islands, Guam, American Samoa, and the U.S. Virgin Islands.
* * * * *

0
127. Section 91.119 is amended by adding and reserving paragraph (b)(3) 
and adding paragraph (b)(4) to read as follows:


Sec.  91.119  Certification procedure--use of special test procedures.

* * * * *
    (b) * * *
    (3) [Reserved]
    (4) Where we specify mandatory compliance with the procedures of 40 
CFR part 1065, manufacturers may elect to use the procedures specified 
in 40 CFR part 86, subpart N, as an alternate test procedure without 
advance approval by the Administrator.

0
128. Section 91.207 is amended by revising the second equation for S(t) 
in paragraph (a) to read as follows:


Sec.  91.207  Credit calculation and manufacturer compliance with 
emission standards.

    (a) * * *

S(t) = exp -(0.906 x t/[mu]life)4
* * * * *

0
129. Section 91.301 is amended by revising paragraph (c) to read as 
follows:


Sec.  91.301  Scope; applicability.

* * * * *
    (c) Additional information about system design, calibration 
methodologies, and so forth, for raw gas sampling can be found in 40 
CFR part 1065. Examples for system design, calibration methodologies, 
and so forth, for dilute sampling can be found in 40 CFR part 1065.

0
130. Section 91.316 is amended by revising paragraphs (b)(2)(ii) and 
(c) introductory text, and the first equation in paragraph (d)(6) to 
read as follows:


Sec.  91.316  Hydrocarbon analyzer calibration.

* * * * *
    (b) * * *
    (2) * * *
    (ii) The HFID optimization procedures outlined in 40 CFR part 1065, 
subpart D.
* * * * *
    (c) Initial and periodic calibration. Prior to introduction into 
service and monthly thereafter, or within one month prior to the 
certification test, calibrate the FID or HFID hydrocarbon analyzer on 
all normally used instrument ranges, using the steps in this paragraph. 
Use the same flow rate and pressures as when analyzing samples. 
Introduce calibration gases directly at the analyzer. An optional 
method for dilute sampling described in 40 CFR part 1065, subpart F, 
may be used.
* * * * *
    (d) * * *
    (6) * * *

percent O2 I = (B - Analyzer response (ppm C))/B x 100
* * * * *

0
131. Section 91.318 is amended by revising paragraph (d) and the 
equation in paragraph (b)(11) to read as follows:


Sec.  91.318  Oxides of nitrogen analyzer calibration.

* * * * *
    (b) * * *
    (11) * * *

percent efficiency = (1 + (a - b)/(c - d)) x 100
* * * * *
    (d) The initial and periodic interference, system check, and 
calibration test procedures specified in 40 CFR part 1065, subparts C 
and D, may be used in lieu of the procedures specified in this section.

0
132. Section 91.320 is amended by revising paragraph (b) to read as 
follows:


Sec.  91.320  Carbon dioxide analyzer calibration.

* * * * *
    (b) The initial and periodic interference, system check, and 
calibration test procedures specified in 40 CFR part 1065, subparts C 
and D, may be used in lieu of the procedures in this section.

0
133. Section 91.325 is amended by revising the equations in paragraphs

[[Page 40452]]

(c)(1)(iv) and (c)(2)(iii) and adding paragraph (c)(2)(iv) to read as 
follows:


Sec.  91.325  Analyzer interference checks.

* * * * *
    (c) * * *
    (1) * * *
    (iv) * * *

percent CO2 quench =100 - 100 x [c x a/(d x a - d x b)] x a/
b
* * * * *
    (2) * * *
    (iii) * * *

D1 = D x (1 - Z1/100)

    (iv)(A) The maximum raw or dilute exhaust water vapor concentration 
expected during testing (designated as Wm) can be estimated from the 
CO2 span gas (or as defined in the equation in this 
paragraph and designated as A) criteria in paragraph (c)(1) of this 
section and the assumption of a fuel atom H/C ratio of 1.8:1 as:

Wm(%) = 0.9 x A(%)


Where:

A = maximum CO2 concentration expected in the sample system 
during testing.

    (B) Percent water quench shall not exceed 3 percent and shall be 
calculated by:

% Water Quench = 100 x (D1 - AR)/D1 x Wm/Z1


0
134. Section 91.419 is amended by revising the entry defining 
``MHCexh'' in paragraph (b) to read as follows:


Sec.  91.419  Raw emission sampling calculations.

* * * * *
    (b) * * *

MHCexh = Molecular weight of hydrocarbons in the exhaust; 
see the following equation:
MHCexh = 12.01 + 1.008 x [alpha]
* * * * *

0
135. Section 91.421 is amended by revising paragraph (b)(4)(ii) and 
(b)(4)(iii) to read as follows:


Sec.  91.421  Dilute gaseous exhaust sampling and analytical system 
description.

* * * * *
    (b) * * *
    (4) * * *
    (ii) Conform to the continuous NOX, CO, or 
CO2 sampling and analysis system to the specifications of 40 
CFR 1065.145, with the following exceptions and revisions:
    (A) Heat the system components requiring heating only to prevent 
water condensation, the minimum component temperature is 55 [deg]C.
    (B) Coordinate analysis system response time with CVS flow 
fluctuations and sampling time/test cycle offsets to meet the time-
alignment and dispersion specifications in 40 CFR pat 1065, subpart C.
    (C) Use only analytical gases conforming to the specifications of 
40 CFR 1065.750 for calibration, zero, and span checks.
    (D) Use a calibration curve conforming to 40 CFR part 1065, 
subparts C and D, for CO, CO2, and NOX for any 
range on a linear analyzer below 155 ppm.
    (iii) Convert the chart deflections or voltage output of analyzers 
with non-linear calibration curves to concentration values by the 
calibration curve(s) specified in 40 CFR part 1065, subpart D, before 
flow correction (if used) and subsequent integration takes place.

0
136. Section 91.705 is amended by revising paragraph (d) to read as 
follows:


Sec.  91.705  Prohibited acts; penalties.

* * * * *
    (d) An importer who violates Sec.  91.1103(a)(1), section 213(d) 
and section 203 of the Act is subject to a civil penalty under Sec.  
91.1106 and section 205 of the Act of not more than$32,500 for each 
marine engine subject to the violation. In addition to the penalty 
provided in the Act, where applicable, a person or entity who imports 
an engine under the exemption provisions of Sec.  91.704(b) and, who 
fails to deliver the marine engine to the U.S. Customs Service by the 
end of the period of conditional admission is liable for liquidated 
damages in the amount of the bond required by applicable Customs laws 
and regulations. The maximum penalty value listed in this paragraph (d) 
is shown for calendar year 2004. Maximum penalty limits for later years 
may be adjusted based on the Consumer Price Index. The specific 
regulatory provisions for changing the maximum penalties, published in 
40 CFR part 19, reference the applicable U.S. Code citation on which 
the prohibited action is based.

0
137. A new Sec.  91.707 is added to read as follows:


Sec.  91.707  Importation of partially complete engines.

    The provisions of 40 CFR 1068.330 apply for importation of 
partially complete engines.

0
138. Section 91.1106 is amended by revising paragraphs (a)(1), (a)(2), 
(a)(5), and (c)(1) and adding paragraph (a)(6) to read as follows:


Sec.  91.1106  Penalties.

    (a) * * *
    (1) A person who violates Sec.  91.1103 (a)(1), (a)(4), or (a)(5), 
or a manufacturer or dealer who violates Sec.  91.1103(a)(3)(i), is 
subject to a civil penalty of not more than $32,500 for each violation.
    (2) A person other than a manufacturer or dealer who violates Sec.  
91.1103(a)(3)(i) or any person who violates Sec.  91.1103(a)(3)(ii) is 
subject to a civil penalty of not more than $2,750 for each violation.
* * * * *
    (5) A person who violates Sec.  91.1103 (a)(2) or (a)(6) is subject 
to a civil penalty of not more than $32,500 per day of violation.
    (6) The maximum penalty values listed in this section are shown for 
calendar year 2004. Maximum penalty limits for later years may be 
adjusted based on the Consumer Price Index. The specific regulatory 
provisions for changing the maximum penalties, published in 40 CFR part 
19, reference the applicable U.S. Code citation on which the prohibited 
action is based.
* * * * *
    (c) * * *
    (1) Administrative penalty authority. In lieu of commencing a civil 
action under paragraph (b) of this section, the Administrator shall 
assess any civil penalty prescribed in paragraph (a) of this section, 
except that the maximum amount of penalty sought against each violator 
in a penalty assessment proceeding can not exceed $270,000, unless the 
Administrator and the Attorney General jointly determine that a matter 
involving a larger penalty amount is appropriate for administrative 
penalty assessment. Any such determination by the Administrator and the 
Attorney General is not subject to judicial review. Assessment of a 
civil penalty is made by an order made on the record after opportunity 
for a hearing held in accordance with the procedures found at part 22 
of this chapter. The Administrator may compromise, or remit, with or 
without conditions, any administrative penalty which may be imposed 
under this section.
* * * * *

PART 92--CONTROL OF AIR POLLUTION FROM LOCOMOTIVES AND LOCOMOTIVE 
ENGINES

0
139. The authority citation for part 92 is revised to read as follows:

    Authority: 42 U.S.C. 7401-7671q.


0
140. Section 92.1 is amended by revising paragraphs (a) introductory 
text, (b)(3), and (b)(4) and adding paragraph (d) to read as follows:

[[Page 40453]]

Sec.  92.1  Applicability.

    (a) Except as noted in paragraphs (b) and (d) of this section, the 
provisions of this part apply to manufacturers, remanufacturers, owners 
and operators of:
* * * * *
    (b) * * *
    (3) Locomotive engines which provide only hotel power (see 40 CFR 
parts 89 and 1039 to determine if such engines are subject to EPA 
emission requirements); or
    (4) Nonroad vehicles excluded from the definition of locomotive in 
Sec.  92.2, and the engines used in such nonroad vehicles (see 40 CFR 
parts 86, 89, and 1039 to determine if such vehicles or engines are 
subject to EPA emission requirements).
* * * * *
    (d) The provisions of subpart L of this part apply to all persons.

0
141. Section 92.2 is amended in paragraph (b) by revising the 
definitions for ``Calibration'', ``Locomotive'', paragraph (5) of the 
definition for ``New locomotive or new locomotive engine'', 
``Repower'', and ``United States'' to read as follows:


Sec.  92.2  Definitions.

* * * * *
    (b) * * *
    Calibration means the set of specifications, including tolerances, 
specific to a particular design, version, or application of a 
component, or components, or assembly capable of functionally 
describing its operation over its working range. This definition does 
apply to Subpart B of this part.
* * * * *
    Locomotive means a self-propelled piece of on-track equipment 
designed for moving or propelling cars that are designed to carry 
freight, passengers or other equipment, but which itself is not 
designed or intended to carry freight, passengers (other than those 
operating the locomotive) or other equipment. The following other 
equipment are not locomotives (see 40 CFR parts 86 and 89 for this 
equipment):
    (1) Equipment which is designed for operation both on highways and 
rails are not locomotives.
    (2) Specialized railroad equipment for maintenance, construction, 
post accident recovery of equipment, and repairs; and other similar 
equipment, are not locomotives.
    (3) Vehicles propelled by engines with total rated horsepower of 
less than 750 kW (1006 hp) are not locomotives (see 40 CFR parts 86 and 
89 for this equipment), unless the owner (including manufacturers) 
chooses to have the equipment certified under the requirements of this 
part. Where equipment is certified as a locomotive pursuant to this 
paragraph (3), it shall be subject to the requirements of this part for 
the remainder of its service life. For locomotives propelled by two or 
more engines, the total rated horsepower is the sum of the rated 
horsepowers of each engine.
* * * * *
    New locomotive or new locomotive engine means: * * *
    (5) Notwithstanding paragraphs (1) through (3) of this definition, 
locomotives and locomotive engines which are owned by a small railroad 
and which have never been manufactured or remanufactured into a 
certified configuration are not new.
* * * * *
    Repower means replacement of the engine in a previously used 
locomotive with a freshly manufactured locomotive engine. Replacing a 
locomotive engine with a freshly manufactured locomotive engine in a 
locomotive that has a refurbished or reconditioned chassis such that 
less than 25 percent of the parts of the locomotive were previously 
used(as weighted by dollar value) is not repowering.
* * * * *
    United States means the States, the District of Columbia, the 
Commonwealth of Puerto Rico, the Commonwealth of the Northern Mariana 
Islands, Guam, American Samoa, and the U.S. Virgin Islands.
* * * * *

0
142. Section 92.8 is amended by revising paragraph (b) to read as 
follows:


Sec.  92.8  Emission standards.

* * * * *
    (b) No crankcase emissions shall be discharged directly into the 
ambient atmosphere from any new locomotive or new locomotive engine, 
except as allowed by paragraph (1) of this paragraph (b).
    (1) Discharge of crankcase emissions into the engine exhaust 
complies with this prohibition, provided crankcase emissions are 
measured and included with exhaust emissions. Other discharge of 
crankcase emissions complies with this prohibition, provided crankcase 
emissions are measured in all certification, production-line, and in-
use tests and the masses are added mathematically to the exhaust 
emissions.
    (2) Compliance with this standard is required throughout the entire 
service life of the locomotive or locomotive engine.
* * * * *

0
143. Section 92.12 is amended by adding paragraphs (g) and (h) to read 
as follows:


Sec.  92.12  Interim provisions.

* * * * *
    (g) Tier 0 locomotive labels. Remanufacturers may use identical 
labels for locomotives and engines for Tier 0 locomotives, provided the 
remanufacturer demonstrates to EPA that they will supply two labels 
(one for the locomotive and one for the engine) only with those 
remanufacturing systems being applied to locomotives that have not been 
previously labeled (i.e., locomotives that have not been previously 
certified). For other locomotives, the remanufacturer may only supply 
one label.
    (h) Labels for calendar year 2005. During calendar year 2005, 
manufacturers and remanufacturers may comply with the labeling 
requirements that were applicable during calendar year 2004, instead of 
the labeling requirements specified in Sec.  92.212(c)(2)(v).

0
144. Section 92.104 is amended by revising paragraph (b)(1)(i) to read 
as follows:


Sec.  92.104  Locomotive and engine testing; overview.

* * * * *
    (b) * * *
    (1) * * *
    (i) Engine speed setpoints for each mode shall be within 2 percent 
of the speed of the engine when it is operated in the locomotive. 
Engine load setpoints for each mode shall be within 2 percent (or 3.0 
horsepower, whichever is greater) of the load of the engine when it is 
operated in the locomotive.
* * * * *

0
145. Section 92.105 is amended by revising paragraph (d) to read as 
follows:


Sec.  92.105  General equipment specifications.

* * * * *
    (d) Electrical measurements. Instruments used to measure engine 
power output shall comply with the requirements of Sec.  92.106.
* * * * *

0
146. Section 92.106 is amended by revising paragraph (b)(1)(ii) to read 
as follows:


Sec.  92.106  Equipment for loading the engine.

* * * * *
    (b) * * *
    (1) * * *
    (ii) Engine flywheel torque readout shall be accurate to within 
2 percent of the NIST ``true'' value torque at all power 
settings above 10 percent of full-

[[Page 40454]]

scale, and accurate to within 5 percent of the NIST 
``true'' value torque at power settings at or below 10 percent of full-
scale.

0
147. Section 92.109 is amended by revising paragraph (c)(3) to read as 
follows:


Sec.  92.109  Analyzer specifications.

* * * * *
    (c) * * *
    (3) Alcohols and Aldehydes. The sampling and analysis procedures 
for alcohols and aldehydes, where applicable, shall be approved by the 
Administrator prior to the start of testing. Procedures are allowed if 
they are consistent with the general requirements of 40 CFR part 1065, 
subpart I, for sampling and analysis of alcohols and aldehydes, and 
with good engineering practice.
* * * * *

0
148. Section 92.114 is amended by revising paragraphs (a)(2)(ii), 
(d)(2) introductory text and (e)(1) to read as follows:


Sec.  92.114  Exhaust gas and particulate sampling and analytical 
system.

* * * * *
    (a) * * *
    (2) * * *
    (ii) For locomotive testing where the locomotive has multiple 
exhaust stacks, proportional samples may be collected from each exhaust 
outlet instead of ducting the exhaust stacks together, provided that 
the CO2 concentrations in each exhaust stream are shown 
(either prior to testing or during testing) to be within 5 percent of 
each other at notch 8.
* * * * *
    (d) * * *
    (2) For engine testing, either a locomotive-type or a facility-type 
exhaust system (or a combination system) may be used. The exhaust 
backpressure for engine testing shall be set between 90 and 100 percent 
of the maximum backpressure that will result with the exhaust systems 
of the locomotives in which the engine will be used. Backpressure less 
than 90 percent of the maximum value is also allowed, provided the 
backpressure is within 0.07 psi of the maximum value. The facility-type 
exhaust system shall meet the following requirements:
* * * * *
    (e) * * *
    (1) Dilution of the exhaust prior to sampling is allowed for 
gaseous emissions. The equipment and methods used for dilution, 
sampling and analysis shall comply with the requirements of 40 CFR part 
1065, with the following exceptions and additional requirements:
    (i) Proportional sampling and heat exchangers are not required;
    (ii) Larger minimum dimensions for the dilution tunnel(s) shall be 
specified by the Administrator;
    (iii) Other modifications may be made with written approval from 
the Administrator.
* * * * *

0
149. Section 92.123 is amended by revising paragraph (a)(2) to read as 
follows:


Sec.  92.123  Test procedure; general requirements.

    (a) * * *
    (2) For locomotives with multiple exhaust stacks, smoke testing is 
required for only one of the exhaust stacks provided the following 
conditions are met:
    (i) The stack that is not tested is not visibly smokier than the 
stack that is tested, and
    (ii) None of the measured opacity values for the stack tested are 
greater than three-quarters of the level allowed by any of the 
applicable smoke standards.
* * * * *

0
150. Section 92.124 is amended by revising paragraph (f) to read as 
follows:


Sec.  92.124  Test sequence; general requirements.

* * * * *
    (f) The required test sequence is described in Table B124-1 of this 
section, as follows:

                                                  Table B124-1
----------------------------------------------------------------------------------------------------------------
                              Test sequence for locomotives and locomotive engines
-----------------------------------------------------------------------------------------------------------------
                                                                                               Power,  and fuel
           Mode No.              Notch setting       Time in notch       Emissions measured      consumption
                                                                                \2\                measured
----------------------------------------------------------------------------------------------------------------
Warmup.......................  Notch 8.........  5  1 min.  None...............  None
Warmup.......................  Lowest Idle.....  15 min maximum (after  None...............  None
                                                  engine speed reaches
                                                  lowest idle speed).
1a...........................  Low Idle\1\.....  6 min minimum........  All................  Both
1............................  Normal Idle.....  6 min minimum........  All................  Both
2............................  Dynamic Brake\1\  6 min minimum........  All................  Both
3............................  Notch 1.........  6 min minimum........  All................  Both
4............................  Notch 2.........  6 min minimum........  All................  Both
5............................  Notch 3.........  6 min minimum........  All................  Both
6............................  Notch 4.........  6 min minimum........  All................  Both
7............................  Notch 5.........  6 min minimum........  All................  Both
8............................  Notch 6.........  6 min minimum........  All................  Both
9............................  Notch 7.........  6 min minimum........  All................  Both
10...........................  Notch 8.........  15 min minimum.......  All................  Both
----------------------------------------------------------------------------------------------------------------
\1\ Omit if not so equipped.
\2\ The EPA test sequence for locomotives and locomotive engines may be performed once, with gaseous,
  particulate and smoke measurements performed simultaneously, or it may be performed twice with gaseous, and
  particulate measurements performed during one test sequence and smoke measurements performed during the other
  test sequence. The minimum time in notch is three minutes for test sequences in which only smoke is measured.


0
151. Section 92.126 is amended by revising paragraph (b)(3) to read as 
follows:


Sec.  92.126  Test run.

* * * * *
    (b) * * *
    (3) Fuel flow rate shall be measured continuously. The value 
reported for the fuel flow rate shall be a one-minute average of the 
instantaneous fuel flow

[[Page 40455]]

measurements taken during the last minute of the minimum sampling 
period listed in Table B124-1 in Sec.  92.124; except for testing 
during idle modes, where it shall be a three-minute average of the 
instantaneous fuel flow measurements taken during the last three 
minutes of the minimum sampling period listed in Table B124-1 in Sec.  
92.124. Sampling periods greater than one minute are allowed, 
consistent with good engineering practice. Fuel flow averaging periods 
should generally match the emission sampling periods as closely as is 
practicable.
* * * * *

0
152. Section 92.131 is amended by revising paragraph (b)(3) to read as 
follows:


Sec.  92.131  Smoke, data analysis.

* * * * *
    (b) * * *
    (3) The ``steady-state'' value is either:
    (i) The highest reading occurring more than two minutes after the 
notch change (excluding peaks lasting less than 5 seconds, caused by 
such random events as the cycling of an air compressor) if opacity 
measurements are recorded graphically; or
    (ii) The average of the second by second values between 120 and 180 
seconds after the notch change if opacity measurements are recorded 
digitally.
* * * * *

0
153. Section 92.132 is amended by revising paragraphs (b)(3)(iii)(D)(2) 
and (d) to read as follows:


Sec.  92.132  Calculations.

* * * * *
    (b) * * *
    (3) * * *
    (iii) * * *
    (D) * * *
    (2) If a CO instrument that meets the criteria specified in 40 CFR 
part 1065, subpart C, is used without a sample dryer according to 40 
CFR 1065.145, COem must be substituted directly for 
COe and COdm must be substituted directly for 
COd.
* * * * *
    (d) NOX correction factor. (1) NOX emission 
rates (MNOx mode) shall be adjusted to account for the 
effects of humidity and temperature by multiplying each emission rate 
by KNOx, which is calculated from the following equations:

KNOX = (K)(1 + (0.25(logK) 2)\1/2\)
K = (KH)(KT)
KH = [C1+C2exp((-0.0143)(10.714))]/
[C1+C2exp((-0.0143)(1000H))]
C1 = -8.7 +164.5exp(-0.0218(A/F)wet)
C2 = 130.7 + 3941exp(- 0.0248(A/F)wet)


Where:

(A/F)wet = Mass of moist air intake divided by mass of fuel 
intake.
KT = 1/[1 - 0.0107(T30 - TA)] for 
tests conducted at ambient temperatures below 30 [deg]C.
KT = 1.00 for tests conducted at ambient temperatures at or 
above 30 [deg]C.
T30 = The measured intake manifold air temperature in the 
locomotive when operated at 30 [deg]C (or 100 [deg]C, where intake 
manifold air temperature is not available).
TA = The measured intake manifold air temperature in the 
locomotive as tested (or the ambient temperature ([deg]C), where intake 
manifold air temperature is not available).
* * * * *

0
154. Section 92.203 is amended by revising paragraph (d)(1)(i) to read 
as follows:


Sec.  92.203  Application for certification.

* * * * *
    (d) Required content. Each application must include the following 
information:(1)(i) A description of the basic engine design including, 
but not limited to, the engine family specifications, the provisions of 
which are contained in Sec.  92.204;
* * * * *

0
155. Section 92.204 is amended by revising paragraph (a) to read as 
follows:


Sec.  92.204  Designation of engine families.

* * * * *
    (a) Manufacturers and remanufacturers shall divide their 
locomotives and locomotive engines into groupings of locomotives and 
locomotive engines which are expected to have similar emission 
characteristics throughout their useful life. Each group shall be 
defined as a separate engine family. Freshly manufactured locomotives 
may not be included in the same engine family as remanufactured 
locomotives. Freshly manufactured engines may be included in the same 
engine family as remanufactured locomotives, provided such engines are 
used as replacement engines for locomotive models included in the 
engine family.
* * * * *

0
156. Section 92.205 is amended by revising paragraph (a) introductory 
text to read as follows:


Sec.  92.205  Prohibited controls, adjustable parameters.

    (a) Any system installed on, or incorporated in, a new locomotive 
or new locomotive engine to enable such locomotive or locomotive engine 
to conform to standards contained in this part:
* * * * *

0
157. Section 92.208 is amended by revising paragraphs (a) and (b) to 
read as follows:


Sec.  92.208  Certification.

    (a) Paragraph (a) of this section applies to manufacturers of new 
locomotives and new locomotive engines. If, after a review of the 
application for certification, test reports and data acquired from a 
freshly manufactured locomotive or locomotive engine or from a 
development data engine, and any other information required or obtained 
by EPA, the Administrator determines that the application is complete 
and that the engine family meets the requirements of the Act and this 
part, he/she will issue a certificate of conformity with respect to 
such engine family except as provided by paragraph (c)(3) of this 
section. The certificate of conformity is valid for each engine family 
from the date of issuance by EPA until 31 December of the model year or 
calendar year for which it is issued and upon such terms and conditions 
as the Administrator deems necessary or appropriate to assure that the 
production locomotives or engines covered by the certificate will meet 
the requirements of the Act and of this part.
    (b) This paragraph (b) applies to remanufacturers of locomotives 
and locomotive engines. If, after a review of the application for 
certification, test reports and data acquired from a remanufactured 
locomotive or locomotive engine or from a development data engine, and 
any other information required or obtained by EPA, the Administrator 
determines that the engine family meets the requirements of the Act and 
of this subpart, he/she will issue a certificate of conformity with 
respect to such engine family except as provided by paragraph (c)(3) of 
this section. The certificate of conformity is valid for each engine 
family from the date of issuance by EPA until 31 December of the model 
year or calendar year for which it is issued and upon such terms and 
conditions as the Administrator deems necessary or appropriate to 
assure that the production locomotives or engines covered by the 
certificate will meet the requirements of the Act and of this part.
* * * * *

0
158. Section 92.210 is amended by revising paragraphs (b)(1), (b)(2), 
(d)(2), and (d)(3) to read as follows:

[[Page 40456]]

Sec.  92.210  Amending the application and certificate of conformity.

* * * * *
    (b) * * *
    (1) A full description of the change to be made in production, or 
of the locomotives or engines to be added;
    (2) Engineering evaluations or data showing that the locomotives or 
engines as modified or added will comply with all applicable emission 
standards; and
* * * * *
    (d) * * *
    (2) If the Administrator determines that the change or new 
locomotive(s) or engine(s) meets the requirements of this part and the 
Act, the appropriate certificate of conformity shall be amended.
    (3) If the Administrator determines that the changed or new 
locomotive(s) or engine(s) does not meet the requirements of this part 
and the Act, the certificate of conformity will not be amended. The 
Administrator shall provide a written explanation to the manufacturer 
or remanufacturer of the decision not to amend the certificate. The 
manufacturer or remanufacturer may request a hearing on a denial.
* * * * *

0
159. Section 92.212 is amended by revising paragraphs (b)(2)(ii), 
(b)(2)(v)(A), (b)(2)(v)(G), (c)(2)(v)(A), and(c)(2)(v)(D)(2) to read as 
follows:


Sec.  92.212  Labeling.

* * * * *
    (b) * * *
    (2) * * *
    (ii) The label shall be attached to a locomotive chassis part 
necessary for normal operation and not normally requiring replacement 
during the service life of the locomotive. This label may not be 
attached to the engine.
* * * * *
    (v) * * *
    (A) The label heading: Original Locomotive Emission Control 
Information. Manufacturers and remanufacturers may add a subheading to 
distinguish this label from the engine label described in paragraph (c) 
of this section.
* * * * *
    (G) The standards and/or FELs to which the locomotive was 
certified.
* * * * *
    (c) * * *
    (2) * * *
    (v) * * *
    (A) The label heading: Engine Emission Control Information. 
Manufacturers and remanufacturers may add a subheading to distinguish 
this label from the locomotive label described in paragraph (b) of this 
section.
* * * * *
    (D) * * *
    (2) This locomotive and locomotive engine conform to U.S. EPA 
regulations applicable to locomotives and locomotive engines originally 
manufactured on or after January 1, 2002 and before January 1, 2005; or
* * * * *

0
160. Section 92.215 is amended by revising paragraphs (a)(2)(i)(A) and 
(b) to read as follows:


Sec.  92.215  Maintenance of records; submittal of information; right 
of entry.

    (a) * * *
    (2) * * *
    (i) * * *
    (A) In the case where a current production engine is modified for 
use as a certification engine or in a certification locomotive, a 
description of the process by which the engine was selected and of the 
modifications made. In the case where the certification locomotive or 
the engine for a certification locomotive is not derived from a current 
production engine, a general description of the buildup of the engine 
(e.g., whether experimental heads were cast and machined according to 
supplied drawings). In the cases in the previous two sentences, a 
description of the origin and selection process for fuel system 
components, ignition system components, intake-air pressurization and 
cooling-system components, cylinders, pistons and piston rings, exhaust 
smoke control system components, and exhaust aftertreatment devices as 
applicable, shall be included. The required descriptions shall specify 
the steps taken to assure that the certification locomotive or 
certification locomotive engine, with respect to its engine, 
drivetrain, fuel system, emission-control system components, exhaust 
aftertreatment devices, exhaust smoke control system components or any 
other devices or components as applicable, that can reasonably be 
expected to influence exhaust emissions will be representative of 
production locomotives or locomotive engines and that either: All 
components and/or locomotive or engine, construction processes, 
component inspection and selection techniques, and assembly techniques 
employed in constructing such locomotives or engines are reasonably 
likely to be implemented for production locomotives or engines; or that 
they are as close as practicable to planned construction and assembly 
process.
* * * * *
    (b) The manufacturer or remanufacturer of any locomotive or 
locomotive engine subject to any of the standards prescribed in this 
part shall submit to the Administrator, at the time of issuance by the 
manufacturer or remanufacturer, copies of all instructions 
orexplanations regarding the use, repair, adjustment, maintenance, or 
testing of such locomotive or engine, relevant to the control of 
crankcase, or exhaust emissions issued by the manufacturer or 
remanufacturer, for use by other manufacturers or remanufacturers, 
assembly plants, distributors, dealers, owners and operators. Any 
material not translated into the English language need not be submitted 
unless specifically requested by the Administrator.
* * * * *

0
161. Section 92.216 is amended by removed by removing and reserving 
paragraph (a)(2).


Sec.  92.216  [Amended]

0
162. Section 92.403 is amended by revising paragraph (b) to read as 
follows:


Sec.  92.403  Emission defect information report.

* * * * *
    (b) Defect information reports required under paragraph (a) of this 
section must be submitted not more than 15 working days after the same 
emission-related defect is found to affect 10 or more locomotives or 
locomotive engines. Information required by paragraph (c) of this 
section that is either not available within 15 working days or is 
significantly revised must be submitted as it becomes available.
* * * * *

0
163. Section 92.508 is amended by revising paragraph (e) introductory 
text to read as follows:


Sec.  92.508  Calculation and reporting of test results.

* * * * *
    (e) Within 45 calendar days of the end of each quarter, each 
manufacturer or remanufacturer must submit to the Administrator a 
report which includes the following information:
* * * * *

0
164. Section 92.511 is amended by revising paragraph (g) introductory 
text to read as follows:


Sec.  92.511  Remanufactured locomotives: installation audit 
requirements.

* * * * *
    (g) Within 45 calendar days of the end of each quarter, each 
remanufacturer must submit to the Administrator a

[[Page 40457]]

report which includes the following information:
* * * * *

0
165. Section 92.512 is amended by revising paragraph (e) to read as 
follows:


Sec.  92.512  Suspension and revocation of certificates of conformity.

* * * * *
    (e) The Administrator shall notify the manufacturer or 
remanufacturer in writing of any suspension or revocation of a 
certificate of conformity in whole or in part; a suspension or 
revocation is effective upon receipt of such notification or thirty 
days from the time an engine family is deemed to be in noncompliance 
under Sec. Sec.  92.508(d), 92.510(a), 92.510(b) or 92.511(f), 
whichever is earlier, except that the certificate is immediately 
suspended with respect to any failed locomotives or locomotive engines 
as provided for in paragraph (a) of this section.
* * * * *

0
166. A new Sec.  92.806 is added to read as follows:


Sec.  92.806  Importation of partially complete engines.

    The provisions of 40 CFR 1068.330 apply for importation of 
partially complete engines, or engines that will be modified for 
applications other than those covered by this part 92.

0
167. Section 92.906 is amended by revising paragraph (a) introductory 
text to read as follows:


Sec.  92.906  Manufacturer-owned, remanufacturer-owned exemption and 
display exemption.

    (a) Any manufacturer-owned or remanufacturer-owned locomotive or 
locomotive engine is exempt from Sec.  92.1103, without application, if 
the manufacturer complies with the following terms and conditions:
* * * * *

0
168. Section 92.907 is amended by revising paragraphs (a)(3) and (b)(3) 
to read as follows:


Sec.  92.907  Non-locomotive-specific engine exemption.

    (a) * * *
    (3) The number of such engines exempted under this paragraph (a) 
does not exceed:
    (i) 50 per manufacturer in any calendar year, where EPA determines 
that the use of the non-locomotive-specific engines will result in a 
significantly greater degree of emission control over the lifetime of 
the locomotive than using remanufactured engines certified under this 
part 92; or
    (ii) 25 per manufacturer in any calendar year, where EPA has not 
determined that the use of the non-locomotive-specific engines will 
result in a significantly greater degree of emission control over the 
lifetime of the locomotive than using remanufactured engines certified 
under this part 92;
* * * * *
    (b) * * *
    (3) The number of such locomotives sold or leased by the locomotive 
manufacturer within any three-year period, and exempted under this 
paragraph (b) does not exceed 30; and
* * * * *

0
169. A new Sec.  92.912 is added to subpart J to read as follows:


Sec.  92.912  Staged-assembly exemption.

    You may ask us to provide a temporary exemption to allow you to 
complete production of your engines at different facilities, as long as 
you maintain control of the engines until they are in their certified 
configuration. We may require you to take specific steps to ensure that 
such engines are in their certified configuration before reaching the 
ultimate purchaser. You may request an exemption under this section in 
your application for certification, or in a separate submission.
0
170. Section 92.1106 is amended by revising paragraphs (a)(1), (a)(2), 
(a)(5), and (c)(1) and adding paragraph (a)(6) to read as follows:


Sec.  92.1106  Penalties.

    (a) * * *
    (1) A person who violates Sec.  92.1103 (a)(1), (a)(4), or (a)(5), 
or a manufacturer, remanufacturer, dealer or railroad who violates 
Sec.  92.1103(a)(3)(i) or (iii) is subject to a civil penalty of not 
more than $32,500 for each violation.
    (2) A person other than a manufacturer, remanufacturer, dealer, or 
railroad who violates Sec.  92.1103(a)(3)(i) or any person who violates 
Sec.  92.1103(a)(3)(ii) is subject to a civil penalty of not more than 
$2,750 for each violation.
* * * * *
    (5) A person who violates Sec.  92.1103(a)(2) is subject to a civil 
penalty of not more than$32,500 per day of violation.
    (6) The maximum penalty values listed in this section are shown for 
calendar year 2004. Maximum penalty limits for later years may be 
adjusted based on the Consumer Price Index. The specific regulatory 
provisions for changing the maximum penalties, published in 40 CFR part 
19, reference the applicable U.S. Code citation on which the prohibited 
action is based.
* * * * *
    (c) * * *
    (1) Administrative penalty authority. In lieu of commencing a civil 
action under paragraph (b) of this section, the Administrator may 
assess any civil penalty prescribed in paragraph (a) of this section, 
except that the maximum amount of penalty sought against each violator 
in a penalty assessment proceeding shall not exceed $270,000, unless 
the Administrator and the Attorney General jointly determine that a 
matter involving a larger penalty amount is appropriate for 
administrative penalty assessment. Any such determination by the 
Administrator and the Attorney General is not subject to judicial 
review. Assessment of a civil penalty shall be by an order made on the 
record after opportunity for a hearing held in accordance with the 
procedures found at part 22 of this chapter. The Administrator may 
compromise, or remit, with or without conditions, any administrative 
penalty which may be imposed under this section.
* * * * *

0
171. Appendix IV to part 92 is amended by revising paragraph (d)(1) to 
read as follows:

Appendix IV to Part 92--Guidelines for Determining Equivalency Between 
Emission Measurement Systems

* * * * *
    (d) * * *
    (1) Four locomotive or locomotive engine tests, conducted in 
accordance with the provisions of subpart B of this part; or
* * * * *

PART 94--CONTROL OF AIR POLLUTION FROM MARINE COMPRESSION-IGNITION 
ENGINES

0
172. The authority citation for part 94 is revised to read as follows:

    Authority: 42 U.S.C. 7401-7671q.


0
173. Section 94.2 is amended in paragraph (b) by removing the 
definitions of Auxiliary engine and Propulsion engine, revising the 
definitions of Marine engine, Marine vessel, and United States, and 
adding a definition of Amphibious vehicle in alphabetical order to read 
as follows:


Sec.  94.2  Definitions.

* * * * *
    Amphibious vehicle means a vehicle with wheels or tracks that is 
designed primarily for operation on land and secondarily for operation 
in water.
* * * * *
    Marine engine means a nonroad engine that is installed or intended 
to be

[[Page 40458]]

installed on a marine vessel. This includes a portable auxiliary marine 
engine only if its fueling, cooling, or exhaust system is an integral 
part of the vessel. There are two kinds of marineengines:
    (1) Propulsion marine engine means a marine engine that moves a 
vessel through the water or directs the vessel's movement.
    (2) Auxiliary marine engine means a marine engine not used for 
propulsion.
    Marine vessel has the meaning given in 1 U.S.C. 3, except that it 
does not include amphibious vehicles. The definition in 1 U.S.C. 3 very 
broadly includes every craft capable of being used as a means of 
transportation on water.
* * * * *
    United States means the States, the District of Columbia, the 
Commonwealth of Puerto Rico, the Commonwealth of the Northern Mariana 
Islands, Guam, American Samoa, and the U.S. Virgin Islands.
* * * * *

0
174. Section 94.9 is amended by revising paragraph (a)(3) to read as 
follows:


Sec.  94.9  Compliance with emission standards.

    (a) * * *
    (3) Manufacturers may request in the application for certification 
that we approve a shorter useful life for an engine family. We may 
approve a shorter useful life, in hours of engine operation but not in 
years, if we determine that these engines will rarely operate longer 
than the shorter useful life. If engines identical to those in the 
engine family have already been produced and are in use, the 
demonstration must include documentation from such in-use engines. In 
other cases, the demonstration must include an engineering analysis of 
information equivalent to such in-use data, such as data from research 
engines or similar engine models that are already in production. The 
demonstration must also include recommended overhaul intervals, any 
mechanical warranty offered for the engine or its components, and any 
relevant customer design specifications. The demonstration may include 
any other relevant information. The useful life value may not be 
shorter than any of the following:
    (i) 1,000 hours of operation.
    (ii) The recommended overhaul interval.
    (iii) The mechanical warranty for the engine.
* * * * *

0
175. Section 94.12 is amended by revising paragraph (h) to read as 
follows:


Sec.  94.12  Interim provisions.

* * * * *
    (h) Flexibility for small-volume boat builders. Notwithstanding the 
other provisions of this part, manufacturers may sell uncertified 
recreational engines to small-volume boat builders during the first 
five years for which the emission standards in Sec.  94.8 apply, 
subject to the following provisions:
    (1) The U.S.-directed production volume of boats from any small-
volume boat builder using uncertified engines during the total five-
year period may not exceed 80 percent of the manufacturer's average 
annual production for the three years prior to the general 
applicability of the recreational engine standards in Sec.  94.8, 
except as allowed in paragraph (h)(2) of this section.
    (2) Small-volume boat builders may exceed the production limits in 
paragraph (h)(1) of this section, provided they do not exceed 20 boats 
during the five-year period or 10 boats in any single calendar year. 
This does not apply to boats powered by engines with displacement 
greater than 2.5 liters per cylinder.
    (3) Small-volume boat builders must keep records of all the boats 
and engines produced under this paragraph (h), including boat and 
engine model numbers, serial numbers, and dates of manufacture. Records 
must also include information verifying compliance with the limits in 
paragraph (h)(1) or (2) of this section. Keep these records until at 
least two full years after you no longer use the provisions in this 
paragraph (h).
    (4) Manufacturers must add a permanent, legible label, written in 
block letters in English, to a readily visible part of each engine 
exempted under this paragraph (h).
    This label must include at least the following items:
    (i) The label heading ``EMISSION CONTROL INFORMATION''.
    (ii) Your corporate name and trademark.
    (iii) Engine displacement (in liters), rated power, and model year 
of the engine or whom to contact for further information.
    (iv) The statement ``THIS ENGINE IS EXEMPT UNDER 40 CFR 94.12(h)
    FROM EMISSION STANDARDS AND RELATED REQUIREMENTS.''.

0
176. Section 94.105 is amended by revising paragraph (b) before the 
table to read as follows:


Sec.  94.105  Duty cycles.

* * * * *
    (b) General cycle. Propulsion engines that are used with (or 
intended to be used with) fixed-pitch propellers, propeller-law 
auxiliary engines, and any other engines for which the other duty 
cycles of this section do not apply, shall be tested using the duty 
cycle described in the following Table B-1:
* * * * *

0
177. Section 94.106 is amended by revising paragraph (b)(3)(i) to read 
as follows:


Sec.  94.106  Supplemental test procedures for Category 1 and Category 
2 marine engines.

* * * * *
    (b) * * *
    (3) * * *
    (i) The Not to Exceed zone is the region above the curve power = 
0.85SPD \4\, excluding all operation below 25% of maximum power at 
rated speed and excluding all operation below 63% of maximum test.
* * * * *

0
178. Section 94.107 is amended by revising paragraph (b) to read as 
follows:


Sec.  94.107  Determination of maximum test speed.

* * * * *
    (b) Generation of lug curve. Prior to beginning emission testing, 
generate maximum measured brakepower versus engine speed data points 
using the applicable method specified in 40 CFR 1065.510. These data 
points form the lug curve. It is not necessary to generate the entire 
lug curve. For the portion of the curve where power increases with 
increasing speed, it is not necessary to generate points with power 
less than 90 percent of the maximum power value. For the portion of the 
curve where power decreases with increasing speed, it is not necessary 
to generate points with power less than 75 percent of the maximum power 
value.
* * * * *

0
179. Section 94.109 is amended by revising paragraph (b) to read as 
follows:


Sec.  94.109  Test procedures for Category 3 marine engines.

* * * * *
    (b) Analyzers meeting the specifications of either 40 CFR part 
1065, subpart C, or ISO 8178-1 (incorporated by reference in Sec.  
94.5) shall be used to measure THC and CO.
* * * * *

0
180. Section 94.211 is amended by revising paragraph (k) to read as 
follows:


Sec.  94.211  Emission-related maintenance instructions for purchasers.

* * * * *
    (k) For Category 3 engines, the manufacturer must provide the 
ultimate purchaser with a Technical File meeting the specifications of 
section 2.4 of the

[[Page 40459]]

Annex VI Technical Code(incorporated by reference in Sec.  94.5). The 
maintenance instructions required by this part to be provided by 
manufacturer may be included in this Technical File. The manufacturer 
must provide a copy of this Technical File to EPA upon request.
* * * * *

0
181. Section 94.212 is amended by revising paragraph (b)(6) and (b)(7) 
to read as follows:


Sec.  94.212  Labeling.

* * * * *
    (b) * * *
    (6) A prominent unconditional statement of compliance with U.S. 
Environmental Protection Agency regulations that apply to marine 
compression-ignition engines.
    (7) The useful life of the engine, unless the applicable useful 
life is based on the provisions of Sec.  94.9(a)(1).
* * * * *

0
182. A new Sec.  94.806 is added to read as follows:


Sec.  94.806  Importation of partially complete engines.

    The provisions of 40 CFR 1068.330 apply for importation of 
partially complete engines, or engines that will be modified for 
applications other than those covered by this part 94.

0
183. Section 94.904 is amended by revising paragraph (a) and adding a 
new paragraph (c) to read as follows:


Sec.  94.904  Exemptions.

    (a) Except as specified otherwise in this subpart, the provisions 
of Sec. Sec.  94.904 through 94.913 exempt certain new engines from the 
standards, other requirements, and prohibitions of this part, except 
for the requirements of this subpart and the requirements of Sec.  
94.1104. Additional requirements may apply for imported engines; these 
are described in subpart I of this part.
* * * * *
    (c) If you want to take an action with respect to an exempted or 
excluded engine that is prohibited by the exemption or exclusion, such 
as selling it, you need to certify the engine. We will issue a 
certificate of conformity if you send us an application for 
certification showing that you meet all the applicable requirements 
from this part 94 and pay the appropriate fee. Also, in some cases, we 
may allow manufacturers to modify the engine as needed to make it 
identical to engines already covered by a certificate. We would base 
such an approval on our review of any appropriate documentation. 
Theseengines must have emission control information labels that 
accurately describe their status.

0
184. Section 94.907 is revised to read as follows:


Sec.  94.907  Engine dressing exemption.

    (a) General provisions. If you are an engine manufacturer, this 
section allows you to introduce new marine engines into commerce if 
they are already certified to the requirements that apply to 
compression-ignition engines under 40 CFR parts 85 and 86 or 40 CFR 
part 89, 92 or 1039 for the appropriate model year. If you comply with 
all the provisions of this section, we consider the certificate issued 
under 40 CFR part 86, 89, 92, or 1039 for each engine to also be a 
valid certificate of conformity under this part 94 for its model year, 
without a separate application for certification under the requirements 
of this part 94.
    (b) Boat-builder provisions. If you are not an engine manufacturer, 
you may install an engine certified for the appropriate model year 
under 40 CFR part 86, 89, 92, or 1039 in a marine vessel as long as you 
do not make any of the changes described in paragraph(d)(3) of this 
section and you meet the requirements of paragraph (e) of this section. 
If you modify the non-marine engine in any of the ways described in 
paragraph (d)(3) of this section, we will consider you a manufacturer 
of a new marine engine. Such engine modifications prevent you from 
using the provisions of this section.
    (c) Liability. Engines for which you meet the requirements of this 
section are exempt from all the requirements and prohibitions of this 
part, except for those specified in this section. Engines exempted 
under this section must meet all the applicable requirements from 40 
CFR parts 85 and 86 or 40 CFR part 89, 92, or 1039. This paragraph (c) 
applies to engine manufacturers, boat builders who use such an engine, 
and all other persons as if the engine were used in its originally 
intended application. The prohibited acts of Sec.  94.1103(a)(1) apply 
to these new engines and vessels; however, we consider the certificate 
issued under 40 CFR part 86, 89, 92, or 1039 for each engine to also be 
a valid certificate of conformity under this part 94 for its model 
year. If we make a determination that these engines do not conform to 
the regulations during their useful life, we may require you to recall 
them under this part 94 or under 40 CFR part 85, 89, 92, or 1039.
    (d) Specific requirements. If you are an engine manufacturer and 
meet all the following criteria and requirements regarding your new 
marine engine, the engine is eligible for an exemption under this 
section:
    (1) You must produce it by marinizing an engine covered by a valid 
certificate of conformity from one of the following programs:
    (i) Heavy-duty highway engines (40 CFR part 86).
    (ii) Land-based nonroad diesel engines (40 CFR part 89 or 1039).
    (iii) Locomotive engines (40 CFR part 92).
    (2) The engine must have the label required under 40 CFR part 86, 
89, 92, or 1039.
    (3) You must not make any changes to the certified engine that 
could reasonably be expected to increase its emissions. For example, if 
you make any of the following changes to one of these engines, you do 
not qualify for the engine dressing exemption:
    (i) Change any fuel system parameters from the certified 
configuration, or change, remove, or fail to properly install any other 
component, element of design, or calibration specified in the engine 
manufacturer's application for certification. This includes 
aftertreatment devices and all related components.
    (ii) Replacing an original turbocharger, except that small-volume 
manufacturers of recreational engines may replace an original 
turbocharger with one that matches the performance of the original 
turbocharger.
    (iii) Modify or design the marine engine cooling or aftercooling 
system so that temperatures or heat rejection rates are outside the 
original engine manufacturer's specified ranges.
    (4) You must show that fewer than 50 percent of the engine family's 
total sales in the United States are used in marine applications. This 
includes engines used in any application, without regard to which 
company manufactures the vessel orequipment. Show this as follows:
    (i) If you are the original manufacturer of the engine, base this 
showing on your sales information.
    (ii) In all other cases, you must get the original manufacturer of 
the engine to confirm this based on its sales information.
    (e) If you are an engine manufacturer or boat builder using this 
exemption, you must do all of the following:
    (1) Make sure the original engine label will remain clearly visible 
after installation in the vessel.
    (2) Add a permanent supplemental label to the engine in a position 
where it will remain clearly visible after installation in the vessel. 
In your engine label, do the following:
    (i) Include the heading: ``Marine Engine Emission Control 
Information''.

[[Page 40460]]

    (ii) Include your full corporate name and trademark.
    (iii) State: ``This engine was marinized without affecting its 
emission controls.''
    (iv) State the date you finished marinizing the engine (month and 
year).
    (3) Send a signed letter to the Designated Officer by the end of 
each calendar year (or less often if we tell you) with all the 
following information:
    (i) Identify your full corporate name, address, and telephone 
number.
    (ii) List the engine models for which you expect to use this 
exemption in the coming year and describe your basis for meeting the 
sales restrictions of paragraph (d)(4) of this section.
    (iii) State: ``We prepare each listed engine model for marine 
application without making any changes that could increase its 
certified emission levels, as described in 40 CFR 94.907.''
    (f) Engine inventories. In general you may use up your inventory of 
engines that are not certified to new marine emission standards if they 
were originally manufactured before the date of the new standards. 
However, stockpiling these engines is a violation of Sec.  
94.1103(a)(1)(i)(A).
    (g) Failure to comply. If your engines do not meet the criteria 
listed in paragraph (d) of this section, they will be subject to the 
standards, requirements, and prohibitions of this part 94 and the 
certificate issued under 40 CFR part 86, 89, 92, or 1039 will not be 
deemed to also be a certificate issued under this part 94. Introducing 
these engines into commerce without a valid exemption or certificate of 
conformity under this part violates the prohibitions in 40 CFR 
94.1103(a)(1).
    (h) Data submission. (1) If you are the original manufacturer and 
marinizer of an exempted engine, you must send us emission test data on 
the appropriate marine duty cycles. You can include the data in your 
application for certification or in the letter described in paragraph 
(e)(3) of this section.
    (2) If you are the original manufacturer of an exempted engine that 
is marinized by a post-manufacture marinizer, you may be required to 
send us emission test data on the appropriate marine duty cycles. If 
such data are requested you will be allowed a reasonable amount of time 
to collect the data.
    (i) Participation in averaging, banking and trading. Engines 
adapted for marine use under this section may not generate or use 
emission credits under this part 94. These engines may generate credits 
under the ABT provisions in 40 CFR part 86, 89, 92, or 1039, as 
applicable. These engines must use emission credits under 40 CFR part 
86, 89, 92, or 1039 as applicable if they are certified to an FEL that 
exceeds an applicable standard.
    (j) Operator requirements. The requirements for vessel 
manufacturers, owners, and operators in subpart K of this part apply to 
these engines whether they are certified under this part 94 or another 
part as allowed by this section.

0
185. A new Sec.  94.912 is added to subpart J to read as follows:


Sec.  94.912  Optional certification to land-based standards for 
auxiliary marine engines.

    This section applies to auxiliary marine engines that are identical 
to certified land-based engines. See Sec.  94.907 for provisions that 
apply to propulsion marine engines or auxiliary marine engines that are 
modified for marine applications.
    (a) General provisions. If you are an engine manufacturer, this 
section allows you to introduce new marine engines into commerce if 
they are already certified to the requirements that apply to 
compression-ignition engines under 40 CFR part 89 or 1039 for the 
appropriate model year. If you comply with all the provisions of this 
section, we consider the certificate issued under 40 CFR part 86 or 
1039 for each engine to also be a valid certificate of conformity under 
this part 94 for its model year, without a separate application for 
certification under the requirements of this part 94.
    (b) Boat builder provisions. If you are not an engine manufacturer, 
you may install an engine certified for land-based applications in a 
marine vessel as long as you meet all the qualifying criteria and 
requirements specified in paragraphs (d) and (e) of this section. If 
you modify the non-marine engine, we will consider you a manufacturer 
of a new marine engine. Such engine modifications prevent you from 
using the provisions of this section.
    (c) Liability. Engines for which you meet the requirements of this 
section are exempt from all the requirements and prohibitions of this 
part, except for those specified in this section. Engines exempted 
under this section must meet all the applicable requirements from 40 
CFR part 89 or 1039. This paragraph (c) applies to engine 
manufacturers, boat builders who use such an engine, and all other 
persons as if the engine were used in its originally intended 
application. The prohibited acts of Sec.  94.1103(a)(1) apply to these 
new engines and vessels; however, we consider the certificate issued 
under 40 CFR part 89 or 1039 for each engine to also be a valid 
certificate of conformity under this part 94 for its model year. If we 
make a determination that these engines do not conform to the 
regulations during their useful life, we may require you to recall them 
under this part 94 or under 40 CFR part 89 or 1068.
    (d) Qualifying criteria. If you are an engine manufacturer and meet 
all the following criteria and requirements regarding your new marine 
engine, the engine is eligible for an exemption under this section:
    (1) The marine engine must be identical in all material respects to 
a land-based engine covered by a valid certificate of conformity for 
the appropriate model year showing that it meets emission standards for 
engines of that power rating under 40 CFR part 89 or 1039.
    (2) The engines may not be used as propulsion marine engines.
    (3) You must show that the number of auxiliary marine engines from 
the engine family must be smaller than the number of land-based engines 
from the engine family sold in the United States, as follows:
    (i) If you are the original manufacturer of the engine, base this 
showing on your sales information.
    (ii) In all other cases, you must get the original manufacturer of 
the engine to confirm this based on its sales information.
    (e) Specific requirements. If you are an engine manufacturer or 
boat builder using this exemption, you must do all of the following:
    (1) Make sure the original engine label will remain clearly visible 
after installation in the vessel. This label or a supplemental label 
must identify that the original certification is valid for marine 
auxiliary applications.
    (2) Send a signed letter to the Designated Officer by the end of 
each calendar year (or less often if we tell you) with all the 
following information:
    (i) Identify your full corporate name, address, and telephone 
number.
    (ii) List the engine models you expect to produce under this 
exemption in the coming year.
    (iii) State: ``We produce each listed engine model for marine 
application without making any changes that could increase its 
certified emission levels, as described in 40 CFR 94.907.''
    (3) If you are the certificate holder, you must describe in your 
application for certification how you plan to produce engines for both 
land-based and auxiliary marine applications, including projected sales 
of auxiliary marine engines to the extent this can be determined. If 
the projected marine sales are substantial, we may ask for the

[[Page 40461]]

year-end report of production volumes to include actual auxiliary 
marine engine sales.
    (f) Failure to comply. If your engines do not meet the criteria 
listed in paragraph (d) of this section, they will be subject to the 
standards, requirements, and prohibitions of this part 94 and the 
certificate issued under 40 CFR part 89 or 1039 will not be deemed to 
also be a certificate issued under this part 94. Introducing these 
engines into commerce without a valid exemption or certificate of 
conformity under this part violates the prohibitions in 40 CFR 
94.1103(a)(1).
    (g) Participation in averaging, banking and trading. Engines using 
this exemption may not generate or use emission credits under this part 
94. These engines may generate credits under the ABT provisions in 40 
CFR part 89 or 1039, as applicable. These engines must use emission 
credits under 40 CFR part 89 or 1039 as applicable if they are 
certified to an FEL that exceeds an applicable standard.
    (h) Operator requirements. The requirements for vessel 
manufacturers, owners, and operators in subpart K of this part apply to 
these engines whether they are certified under this part 94 or another 
part as allowed by this section.

0
186. A new Sec.  94.913 is added to subpart J to read as follows:


Sec.  94.913  Staged-assembly exemption.

    You may ask us to provide a temporary exemption to allow you to 
complete production of your engines at different facilities, as long as 
you maintain control of the engines until they are in their certified 
configuration. We may require you to take specific steps to ensure that 
such engines are in their certified configuration before reaching the 
ultimate purchaser. You may request an exemption under this section in 
your application for certification, or in a separate submission to the 
Designated Officer.

0
187. Section 94.1004 is amended by revising paragraphs (b) and (c) 
introductory text to read as follows:


Sec.  94.1004  Maintenance, repair, adjustment, and recordkeeping.

* * * * *
    (b) Unless otherwise approved by the Administrator, all 
maintenance, repair, adjustment,and alteration of Category 3 engines 
subject to the provisions of this part performed by any owner, operator 
or other maintenance provider that is not covered by paragraph (a) of 
this section shall be performed, using good engineering judgment, in 
such a manner that the engine continues (after the maintenance, repair, 
adjustment or alteration) to meet the emission standards it was 
certified as meeting prior to the need for service. Adjustmentsare 
limited to the range specified by the engine manufacturer in the 
approved application for certification.
    (c) A Category 3 engine may not be adjusted or altered contrary to 
the requirements of Sec.  94.11 or paragraph (b) of this section, 
except as allowed by Sec.  94.1103(b)(2). If such an adjustment or 
alteration occurs, the engine must be returned to a configuration 
allowed by this part within two hours of operation. Each two-hour 
period during which there is noncompliance is a separate violation. The 
following provisions apply to adjustments oralterations made under 
Sec.  94.1103(b)(2):
* * * * *

0
188. Section 94.1103 is amended by revising paragraph (b)(3) and adding 
paragraphs (a)(8) and (b)(4) to read as follows:


Sec.  94.1103  Prohibited acts.

    (a) * * *
    (8) For an owner or operator of a vessel installing a replacement 
engine under the provisions of paragraph (b)(4) of this section to make 
modifications to significantly increase the value of the vessel within 
six months after installing the replacement engine.
    (b) * * *
    (3) Where the Administrator determines that no engine that is 
certified to the requirements of this part is produced by any 
manufacturer with the appropriate physical or performance 
characteristics to repower a vessel, the Administrator may allow an 
engine manufacturer to introduce into commerce a replacement engine 
without complying with all of the otherwise applicable requirements of 
this part. Such engine shall not be subject to the prohibitions of 
paragraph (a)(1) of this section, subject to all the following 
provisions:
    (i) The engine requiring replacement is not certified or is 
certified to emission standards that are less stringent than those in 
effect when the replacement engine is built.
    (ii) The engine manufacturer or its agent takes ownership and 
possession of the engine being replaced or confirms that the engine has 
been destroyed.
    (iii) If the engine being replaced was not certified to any 
emission standards under this part, the replacement engine must have a 
permanent label with your corporate name and trademark and the 
following language, or similar alternate language approved by the 
Administrator:
    THIS ENGINE DOES NOT COMPLY WITH U.S. EPA MARINE EMISSION 
REQUIREMENTS. SELLING OR INSTALLING THIS ENGINE FOR ANY PURPOSE OTHER 
THAN TO REPLACE A MARINE ENGINE BUILT BEFORE JANUARY 1, [Insert 
appropriate year reflecting when the earliest tier of standards began 
to apply to engines of that size and type] MAY BE A VIOLATION OF 
FEDERAL LAW SUBJECT TO CIVIL PENALTY.
    (iv) If the engine being replaced was certified to emission 
standards less stringent than those in effect when you produce the 
replacement engine, the replacement engine must have a permanent label 
with your corporate name and trademark and the following language, or 
similar alternate language approved by the Administrator:
    THIS ENGINE COMPLIES WITH U.S. EPA MARINE EMISSION REQUIREMENTS FOR 
[Insert appropriate year reflecting when the Tier 1 or Tier 2 standards 
for the replaced engine began to apply] ENGINES UNDER 40 CFR 
94.1103(b)(3). SELLING OR INSTALLING THIS ENGINE FOR ANY PURPOSE OTHER 
THAN TO REPLACE A MARINE ENGINEBUILT BEFORE JANUARY 1, [Insert 
appropriate year reflecting when the next tier of emission standards 
began to apply] MAY BE A VIOLATION OF FEDERAL LAW SUBJECT TO CIVIL 
PENALTY.
    (v) Where the replacement engine is intended to replace an engine 
that is certified to emission standards that are less stringent than 
those in effect when the replacement engine is built, the replacement 
engine shall be identical in all material respects to a certified 
configuration of the same or later model year as the engine being 
replaced.
    (vi) Engines sold pursuant to the provisions of this paragraph will 
neither generate nor use emission credits and will not be part of any 
accounting under the averaging, banking and trading program.
    (vii) In cases where an engine is to be imported for replacement 
purposes under the provisions of this paragraph (b)(3) of this section, 
the term ``engine manufacturer'' shall not apply to an individual or 
other entity that does not possess a current Certificate of Conformity 
issued by EPA under this part; and
    (viii) The provisions of this section may not be used to 
circumventemission standards that apply to new engines under this part.
    (4) An engine manufacturer may make the determination related to 
replacement engines described in paragraph (b)(3) of this section 
instead

[[Page 40462]]

of the Administrator, if the new engine is needed to replace an engine 
that has experienced catastrophic failure. The engine manufacturer must 
consider whether certified engines are available from its own product 
lineup or that of the manufacturer of the engine being replaced (if 
different). The engine manufacturer must keep records explaining why a 
certified engine was not available and make these records available 
upon request.

0
189. Section 94.1106 is amended by revising the introductory text and 
paragraphs (a)(1), (a)(2), (c)(1), and (d) to read as follows:


Sec.  94.1106  Penalties.

    This section specifies actions that are prohibited and the maximum 
civil penalties that we can assess for each violation. The maximum 
penalty values listed in paragraphs (a) and (c) of this section are 
shown for calendar year 2004. As described in paragraph (d) of this 
section, maximum penalty limits for later years are set forth in 40 CFR 
part 19.
    (a) * * *
    (1) A person who violates Sec.  94.1103(a)(1), (a)(4), (a)(5), 
(a)(6), or (a)(7)(iv) or a manufacturer or dealer who violates Sec.  
94.1103(a)(3)(i) or (iii) or Sec.  94.1103(a)(7) is subject to a civil 
penalty of not more than $32,500 for each violation.
    (2) A person other than a manufacturer or dealer who violates Sec.  
94.1103(a)(3)(i) or (iii) orSec.  94.1103(a)(7)(i), (ii), or (iii) or 
any person who violates Sec.  94.1103(a)(3)(ii) is subject to a civil 
penalty of not more than $2,750 for each violation.
* * * * *
    (c) * * *
    (1) Administrative penalty authority. Subject to 42 U.S.C. 7524(c), 
in lieu of commencing a civil action under paragraph (b) of this 
section, the Administrator may assess any civil penalty prescribed in 
paragraph (a) of this section, except that the maximum amount of 
penalty sought against each violator in a penalty assessment proceeding 
shall not exceed $270,000, unless the Administrator and the Attorney 
General jointly determine that a matter involving a larger penalty 
amount is appropriate for administrative penalty assessment. Any such 
determination by the Administrator and the Attorney General is not 
subject to judicial review. Assessment of a civil penalty shall be by 
an order made on the record after opportunity for a hearing held in 
accordance with the procedures found at part 22 of this chapter. The 
Administrator may compromise, or remit, with or without conditions, any 
administrative penalty which may be imposed under this section.
* * * * *
    (d) The maximum penalty values listed in paragraphs (a) and (c) of 
this section are shown for calendar year 2004. Maximum penalty limits 
for later years may be adjusted based on the Consumer Price Index. The 
specific regulatory provisions for changing the maximum penalties, 
published in 40 CFR part 19, reference the applicable U.S. Code 
citation on which the prohibited action is based.

PART 1039--CONTROL OF EMISSIONS FROM NEW AND IN-USE 
NONROADCOMPRESSION-IGNITION ENGINES

0
190. The authority citation for part 1039 is revised to read as 
follows:

    Authority: 42 U.S.C. 7401-7671q.

0
191. Section 1039.1 is amended by revising paragraph (c) to read as 
follows:


Sec.  1039.1  Does this part apply for my engines?

* * * * *
    (c) The definition of nonroad engine in 40 CFR 1068.30 excludes 
certain engines used in stationary applications. These engines are not 
required to comply with this part, except for the requirements in Sec.  
1039.20. In addition, if these engines are uncertified, the 
prohibitions in 40 CFR 1068.101 restrict their use as nonroad engines.
* * * * *

0
192. Section 1039.5 is amended by revising paragraphs (b)(1)(iii) and 
(b)(2) to read as follows:


Sec.  1039.5  Which engines are excluded from this part's requirements?

* * * * *
    (b) * * *
    (1) * * *
    (iii) Engines that are exempt from the standards of 40 CFR part 94 
pursuant to the provisions of 40 CFR part 94 (except for the provisions 
of 40 CFR 94.907 or 94.912). For example, an engine that is exempt 
under 40 CFR 94.906 because it is a manufacturer-owned engine is not 
subject to the provisions of this part 1039.
* * * * *
    (2) Marine engines are subject to the provisions of this part 1039 
if they are exempt from 40 CFR part 94 based on the engine-dressing 
provisions of 40 CFR 94.907 or the common-family provisions of 40 CFR 
94.912.
* * * * *

0
193. Section 1039.10 is amended by revising the introductory text to 
read as follows:


Sec.  1039.10  How is this part organized?

    The regulations in this part 1039 contain provisions that affect 
both engine manufacturers and others. However, the requirements of this 
part are generally addressed to the engine manufacturer. The term 
``you'' generally means the engine manufacturer, as defined in Sec.  
1039.801. This part 1039 is divided into the following subparts:
* * * * *

0
194. Section 1039.101 is amended by revising paragraph (g)(2) to read 
as follows:


Sec.  1039.101  What exhaust emission standards must my engines meet 
after the 2014 model year?

* * * * *
    (g) * * *
    (2) You may request in your application for certification that we 
approve a shorter useful life for an engine family. We may approve a 
shorter useful life, in hours of engine operation but not in years, if 
we determine that these engines will rarely operate longer than the 
shorter useful life. If engines identical to those in the engine family 
have already been produced and are in use, your demonstration must 
include documentation from such in-use engines. In other cases, your 
demonstration must include an engineering analysis of information 
equivalent to such in-use data, such as data from research engines or 
similar engine models thatare already in production. Your demonstration 
must also include any overhaul interval that you recommend, any 
mechanical warranty that you offer for the engine or its components, 
and any relevant customer design specifications. Your demonstration may 
include any other relevant information. The useful life value may not 
be shorter than any of the following:
    (i) 1,000 hours of operation.
    (ii) Your recommended overhaul interval.
    (iii) Your mechanical warranty for the engine.
* * * * *

0
195. Section 1039.104 is amended by revising paragraph (a)(4)(iii) to 
read as follows:


Sec.  1039.104  Are there interim provisions that apply only for a 
limited time?

* * * * *
    (a) * * *
    (4) * * *
    (iii) All other offset-using engines must meet the standards and 
other provisions that apply in model year 2011 for engines in the 19-
130 kW power categories, in model year 2010 for

[[Page 40463]]

engines in the 130-560 kW power category, or in model year 2014 for 
engines above 560 kW. Show that engines meet these emission standards 
by meeting all the requirements of Sec.  1068.265. You must meet the 
labeling requirements in Sec.  1039.135, but add the following 
statement instead of the compliance statement in Sec.  1039.135(c)(12): 
``THIS ENGINE MEETS U.S. EPA EMISSIONSTANDARDS UNDER 40 CFR 
1039.104(a).'' For power categories witha percentage phase-in, these 
engines should be treated as phase-in engines for purposes of 
determining compliance with phase-in requirements.
* * * * *

0
196. Section 1039.120 is amended by revising paragraph (b) before the 
table to read as follows:


Sec.  1039.120  What emission-related warranty requirements apply to 
me?

* * * * *
    (b) Warranty period. Your emission-related warranty must be valid 
for at least as long as the minimum warranty periods listed in this 
paragraph (b) in hours of operation and years, whichever comes first. 
You may offer an emission-related warranty more generous than we 
require. The emission-related warranty for the engine may not be 
shorter than any published warranty you offer without charge for the 
engine. Similarly, the emission-related warranty for any component may 
not be shorter than any published warranty you offer without charge for 
that component. If an engine has no hour meter, we base the warranty 
periods in this paragraph (b) only on the engine's age (in years). The 
warranty period begins when the engine is placed into service. The 
minimum warranty periods are shown in the following table:
* * * * *

0
197. Section 1039.125 is amended by revising paragraph (g) introductory 
text to readas follows:


Sec.  1039.125  What maintenance instructions must I give to buyers?

* * * * *
    (g) Payment for scheduled maintenance. Owners are responsible for 
properly maintaining their engines. This generally includes paying for 
scheduled maintenance. However, manufacturers must pay for scheduled 
maintenance during the useful life if it meets all the following 
criteria:
* * * * *
0
198. Section 1039.130 is amended by revising paragraph (b)(3) to read 
as follows:


Sec.  1039.130  What installation instructions must I give to equipment 
manufacturers?

* * * * *
    (b) * * *
    (3) Describe the instructions needed to properly install the 
exhaust system and any other components. Include instructions 
consistent with the requirements of Sec.  1039.205(u).
* * * * *
0
199. Section 1039.225 is amended by revising the section heading and 
adding paragraphs (a)(3) and (f) to read as follows:


Sec.  1039.225  How do I amend my application for certification to 
include new or modified engines or to change an FEL?

* * * * *
    (a) * * *
    (3) Modify an FEL for an engine family, as described in paragraph 
(f) of this section.
* * * * *
    (f) You may ask to change your FEL in the following cases:
    (1) You may ask to raise your FEL after the start of production. 
You may not apply the higher FEL to engines you have already introduced 
into commerce. Use the appropriate FELs with corresponding sales 
volumes to calculate your averageemission level, as described in 
subpart H of this part. In your request, you must demonstrate that you 
will still be able to comply with the applicable averageemission 
standards as specified in subparts B and H of this part.
    (2) You may ask to lower the FEL for your engine family after the 
start of production only when you have test data from production 
engines indicating that your engines comply with the lower FEL. You may 
create a separate subfamily with the lower FEL. Otherwise, you must use 
the higher FEL for the family to calculate your average emission level 
under subpart H of this part.
    (3) If you change the FEL during production, you must include the 
new FEL on the emission control information label for all engines 
produced after the change.
0
200. Section 1039.240 is amended by revising paragraphs (a) and (b) to 
read as follows:


Sec.  1039.240  How do I demonstrate that my engine family complies 
with exhaust emission standards?

    (a) For purposes of certification, your engine family is considered 
in compliance with the applicable numerical emission standards in Sec.  
1039.101(a) and (b), Sec.  1039.102(a) and (b), Sec.  1039.104, and 
Sec.  1039.105 if all emission-data engines representing that family 
have test results showing deteriorated emission levels at or below 
these standards. (Note: if you participate in the ABT program in 
subpart H of this part, your FELs are considered to be the applicable 
emission standards with which you must comply.)
    (b) Your engine family is deemed not to comply if any emission-data 
engine representing that family has test results showing a deteriorated 
emission level above an applicable FEL or emission standard from Sec.  
1039.101, Sec.  1039.102, Sec.  1039.104, or Sec.  1039.105 for any 
pollutant.
* * * * *


Sec.  1039.260  [Removed]

0
201. Section 1039.260 is removed.

0
202. Section 1039.501 is amended by revising paragraph (a) to read as 
follows:


Sec.  1039.501  How do I run a valid emission test?

    (a) Use the equipment and procedures for compression-ignition 
engines in 40 CFR part 1065 to determine whether engines meet the duty-
cycle emission standards in Sec.  1039.101(a) and (b). Measure the 
emissions of all the pollutants we regulate in Sec.  1039.101 as 
specified in 40 CFR part 1065. Use the applicable duty cycles specified 
in Sec. Sec.  1039.505 and 1039.510.
* * * * *


Sec.  1039.510  [Amended]

0
203. Section 1039.510 is amended by removing paragraphs (c) and (d).

0
204. Section 1039.605 is amended by revising the section heading and 
adding paragraph (g) to read as follows:


Sec.  1039.605  What provisions apply to engines certified under the 
motor-vehicle program?

* * * * *
    (g) Participation in averaging, banking and trading. Engines 
adapted for nonroad use under this section may not generate or use 
emission credits under this part 1039. These engines may generate 
credits under the ABT provisions in 40 CFR part 86. These engines must 
use emission credits under 40 CFR part 86 if they are certified to an 
FEL that exceeds an applicable standard under 40 CFR part 86.

0
205. Section 1039.610 is amended by revising the section heading and 
adding paragraph (g) to read as follows:


Sec.  1039.610  What provisions apply to vehicles certified under the 
motor-vehicle program?

* * * * *
    (g) Participation in averaging, banking and trading. Vehicles 
adapted for nonroad use under this section may not generate or use 
emission credits under

[[Page 40464]]

this part 1039. These vehicles may generate credits under the ABT 
provisions in 40 CFR part 86. These vehicles must be included in the 
calculation of the applicable fleet average in 40 CFR part 86.

0
206. Section 1039.625 is amended by revising the last entry in Table 1 
and paragraph (j) to read as follows:


Sec.  1039.625  What requirements apply under the program for 
equipment-manufacturer flexibility?

* * * * *
    (a) * * *
    (1) * * *

     Table 1 of Sec.   1039.625.--General Availability of Allowances
------------------------------------------------------------------------
                     Power category                       Calendar years
------------------------------------------------------------------------

                              * * * * * * *
kW > 560...............................................       2011-2017
------------------------------------------------------------------------

* * * * *
    (j) Provisions for engine manufacturers. As an engine manufacturer, 
you may produceexempted engines as needed under this section. You do 
not have to request thisexemption for your engines, but you must have 
written assurance from equipment manufacturers that they need a certain 
number of exempted engines under this section. Send us an annual report 
of the engines you produce under this section, as described in Sec.  
1039.250(a). For engines produced under the provisions of paragraph 
(a)(2) of this section, you must certify the engines under this part 
1039. For all other exempt engines, the engines must meet the emission 
standards in paragraph (e) of this section and you must meet all the 
requirements of 40 CFR 1068.265. If you show under 40 CFR 1068.265(c) 
that the engines are identical in all material respects to engines that 
you have previously certified to one or more FELs above the standards 
specified in paragraph (e) of this section, you must supply sufficient 
credits for these engines. Calculate these credits under subpart H of 
this part using the previously certified FELs and the alternate 
standards. You must meet the labeling requirements in 40 CFR 89.110, 
but add the following statement instead of the compliance statement in 
40 CFR 89.110(b)(10):

    THIS ENGINE MEETS U.S. EPA EMISSION STANDARDS UNDER 40 CFR 
1039.625. SELLING OR INSTALLING THIS ENGINE FOR ANY PURPOSEOTHER 
THAN FOR THE EQUIPMENT FLEXIBILITY PROVISIONS OF 40CFR 1039.625 MAY 
BE A VIOLATION OF FEDERAL LAW SUBJECT TOCIVIL PENALTY.
* * * * *

0
207. Section 1039.655 is amended by revising paragraph (a)(3) to read 
as follows:


Sec.  1039.655  What special provisions apply to engines sold in Guam, 
American Samoa, or the Commonwealth of the Northern Mariana Islands?

    (a) * * *
    (3) You meet all the requirements of 40 CFR 1068.265.
* * * * *

0
208. Section 1039.740 amended by adding paragraph (b)(4) to read as 
follows:


Sec.  1039.740  What restrictions apply for using emission credits?

* * * * *
    (b) * * *
    (4) If the maximum power of an engine generating credits under the 
Tier 2 standards in 40 CFR part 89 is at or above 37 kW and below 75 
kW, you may use those credits for certifying engines under the Option 
1 standards in Sec.  1039.102.
* * * * *

0
209. Section 1039.801 is amended by revising the definitions for 
Aftertreatment, Brake power, Constant-speed operation, Exempted, Good 
engineering judgment, Marineengine, Marine vessel, Maximum test speed, 
Motor vehicle, Revoke, Suspend,United States, and Void and adding a 
definition for Amphibious vehicle to read as follows:


Sec.  1039.801  What definitions apply to this part?

* * * * *
    Aftertreatment means relating to a catalytic converter, particulate 
filter, or any other system, component, or technology mounted 
downstream of the exhaust valve (orexhaust port) whose design function 
is to decrease emissions in the engine exhaust before it is exhausted 
to the environment. Exhaust-gas recirculation (EGR) and turbochargers 
are not aftertreatment.
* * * * *
    Amphibious vehicle means a vehicle with wheels or tracks that is 
designed primarily for operation on land and secondarily for operation 
in water.
* * * * *
    Brake power means the usable power output of the engine, not 
including power required to fuel, lubricate, or heat the engine, 
circulate coolant to the engine, or to operateaftertreatment devices.
* * * * *
    Constant-speed operation means engine operation with a governor 
that controls the operator input to maintain an engine at a reference 
speed, even under changing load. For example, an isochronous governor 
changes reference speed temporarily during a load change, then returns 
the engine to its original reference speed after the engine stabilizes. 
Isochronous governors typically allow speed changes up to 1.0%. Another 
example is a speed-droop governor, which has a fixed reference speed at 
zero load and allows the reference speed to decrease as load increases. 
With speed-droop governors, speed typically decreases (3 to 10)% below 
the reference speed at zero load, such that the minimum reference speed 
occurs near the engine's point of maximum power.
* * * * *
    Exempted has the meaning we give in 40 CFR 1068.30.
* * * * *
    Good engineering judgment has the meaning we give in 40 CFR 
1068.30. See 40 CFR 1068.5 for the administrative process we use to 
evaluate good engineering judgment.
* * * * *
    Marine engine means a nonroad engine that is installed or intended 
to be installed on a marine vessel. This includes a portable auxiliary 
marine engine only if its fueling, cooling, or exhaust system is an 
integral part of the vessel. There are two kinds of marineengines:
    (1) Propulsion marine engine means a marine engine that moves a 
vessel

[[Page 40465]]

through the water or directs the vessel's movement.
    (2) Auxiliary marine engine means a marine engine not used for 
propulsion.
    Marine vessel has the meaning given in 1 U.S.C. 3, except that it 
does not include amphibious vehicles. The definition in 1 U.S.C. 3 very 
broadly includes every craft capable of being used as a means of 
transportation on water.
* * * * *
    Maximum test speed has the meaning we give in 40 CFR 1065.1001.
* * * * *
    Motor vehicle has the meaning we give in 40 CFR 85.1703(a).
* * * * *
    Revoke has the meaning we give in 40 CFR 1068.30.
* * * * *
    Suspend has the meaning we give in 40 CFR 1068.30.
* * * * *
    United States has the meaning we give in 40 CFR 1068.30.
* * * * *
    Void has the meaning we give in 40 CFR 1068.30.
* * * * *

0
210. Appendix VI to part 1039 is amended in the table by adding a 
footnote to read as follows:

Appendix VI to Part 1039--Nonroad Compression-Ignition Composite 
TransientCycle

------------------------------------------------------------------------
                             Normalized speed        Normalized torque
        Time(s)                 (percent)              (percent)\1\
------------------------------------------------------------------------

                              * * * * * * *
------------------------------------------------------------------------
\1\ The percent torque is relative to maximum torque at the commanded
  engine speed.

PART 1048--CONTROL OF EMISSIONS FROM NEW, LARGE NONROAD SPARK-
IGNITION ENGINES

0
211. The authority citation for part 1048 is revised to read as 
follows:

    Authority: 42 U.S.C. 7401--7671q.


0
212. The heading for subpart A is revised to read as follows:

Subpart A--Overview and Applicability

0
213. Section 1048.1 is revised to read as follows:


Sec.  1048.1  Does this part apply to me?

    (a) The regulations in this part 1048 apply for all new, spark-
ignition nonroad engines (defined in Sec.  1048.801) with maximum 
engine power above 19 kW, except as provided in Sec.  1048.5.
    (b) This part 1048 applies for engines built on or after January 1, 
2004. You need not follow this part for engines you produce before 
January 1, 2004. See Sec. Sec.  1048.101 through 1048.115, Sec.  
1048.145, and the definition of model year in Sec.  1048.801 for more 
information about the timing of new requirements.
    (c) The definition of nonroad engine in 40 CFR 1068.30 excludes 
certain engines used in stationary applications. These engines are not 
required to comply with this part, except for the requirements in Sec.  
1048.20. In addition, if these engines are uncertified, the 
prohibitions in 40 CFR 1068.101 restrict their use as nonroad engines.
    (d) In certain cases, the regulations in this part 1048 apply to 
engines with maximum engine power at or below 19 kW that would 
otherwise be covered by 40 CFR part 90. See 40 CFR 90.913 for 
provisions related to this allowance.

0
214. Section 1048.5 is revised to read as follows:


Sec.  1048.5  Which engines are excluded from this part's requirements?

    This part does not apply to the following nonroad engines:
    (a) Engines that are certified to meet the requirements of 40 CFR 
part 1051, or are otherwise subject to 40 CFR part 1051 (for example, 
engines used in snowmobiles and all-terrain vehicles).
    (b) Propulsion marine engines. See 40 CFR part 91. This part 
applies with respect to auxiliary marine engines.

0
215. Section 1048.10 is revised to read as follows:


Sec.  1048.10  How is this part organized?

    The regulations in this part 1048 contain provisions that affect 
both engine manufacturers and others. However, the requirements of this 
part are generally addressed to the engine manufacturer. The term 
``you'' generally means the engine manufacturer, as defined in Sec.  
1048.801. This part 1048 is divided into the following subparts:
    (a) Subpart A of this part defines the applicability of part 1048 
and gives an overview of regulatory requirements.
    (b) Subpart B of this part describes the emission standards and 
other requirements that must be met to certify engines under this part. 
Note that Sec.  1048.145 discusses certain interim requirements and 
compliance provisions that apply only for a limited time.
    (c) Subpart C of this part describes how to apply for a certificate 
of conformity.
    (d) Subpart D of this part describes general provisions for testing 
production-line engines.
    (e) Subpart E of this part describes general provisions for testing 
in-use engines.
    (f) Subpart F of this part describes how to test your engines 
(including references to other parts of the Code of Federal 
Regulations).
    (g) Subpart G of this part and 40 CFR part 1068 describe 
requirements, prohibitions, and other provisions that apply to engine 
manufacturers, equipment manufacturers, owners, operators, rebuilders, 
and all others.
    (h) [Reserved]
    (i) Subpart I of this part contains definitions and other reference 
information.

0
216. Section 1048.15 is revised to read as follows:


Sec.  1048.15  Do any other regulation parts affect me?

    (a) Part 1065 of this chapter describes procedures and equipment 
specifications for testing engines. Subpart F of this part 1048 
describes how to apply the provisions of part 1065 of this chapter to 
determine whether engines meet the emission standards in this part.
    (b) The requirements and prohibitions of part 1068 of this chapter 
apply to everyone, including anyone who manufactures, imports, 
installs, owns, operates, or rebuilds any of the engines subject to 
this part 1048, or equipment containing these engines. Part 1068 of 
this chapter describes general provisions, including these seven areas:
    (1) Prohibited acts and penalties for engine manufacturers, 
equipment manufacturers, and others.
    (2) Rebuilding and other aftermarket changes.
    (3) Exclusions and exemptions for certain engines.
    (4) Importing engines.
    (5) Selective enforcement audits of your production.
    (6) Defect reporting and recall.
    (7) Procedures for hearings.
    (c) Other parts of this chapter apply if referenced in this part.

[[Page 40466]]


0
217. Section 1048.20 is revised to read as follows:


Sec.  1048.20  What requirements from this part apply to excluded 
stationary engines?

    (a) You must add a permanent label or tag to each new engine you 
produce or import that is excluded under Sec.  1048.1(c) as a 
stationary engine. To meet labeling requirements, you must do the 
following things:
    (1) Attach the label or tag in one piece so no one can remove it 
without destroying or defacing it.
    (2) Secure it to a part of the engine needed for normal operation 
and not normally requiring replacement.
    (3) Make sure it is durable and readable for the engine's entire 
life.
    (4) Write it in English.
    (5) Follow the requirements in Sec.  1048.135(g) regarding 
duplicate labels if the engine label is obscured in the final 
installation.
    (b) Engine labels or tags required under this section must have the 
following information:
    (1) Include the heading ``EMISSION CONTROL INFORMATION''.
    (2) Include your full corporate name and trademark. You may instead 
include the full corporate name and trademark of another company you 
choose to designate.
    (3) State the engine displacement (in liters) and maximum engine 
power.
    (4) State: ``THIS ENGINE IS EXCLUDED FROM THE REQUIREMENTS OF 40 
CFR PART 1048 AS A ``STATIONARY ENGINE.'' INSTALLING ORUSING THIS 
ENGINE IN ANY OTHER APPLICATION MAY BE AVIOLATION OF FEDERAL LAW 
SUBJECT TO CIVIL PENALTY.''.

0
218. Section 1048.101 is amended by revising the introductory text and 
paragraphs (a), (b), (c), (e), (g), and (h) to read as follows:


Sec.  1048.101  What exhaust emission standards must my engines meet?

    The exhaust emission standards of this section apply by model year. 
You may certify engines earlier than we require. The Tier 1 standards 
apply only to steady-state testing, as described in paragraph (b) of 
this section. The Tier 2 standards apply to steady-state, transient, 
and field testing, as described in paragraphs (a), (b), and (c) of this 
section.
    (a) Emission standards for transient testing. Starting in the 2007 
model year, transient exhaust emissions from your engines may not 
exceed the Tier 2 emission standards, as follows:
    (1) Measure emissions using the applicable transient test 
procedures described in subpart F of this part.
    (2) The Tier 2 HC+NOX standard is 2.7 g/kW-hr and the 
Tier 2 CO standard is 4.4 g/kW-hr. For severe-duty engines, the Tier 2 
HC+NOX standard is 2.7 g/kW-hr and the Tier 2 CO standard is 
130.0 g/kW-hr. The following engines are not subject to the transient 
standards in this paragraph (a):
    (i) High-load engines.
    (ii) Engines with maximum engine power above 560 kW.
    (iii) Engines with maximum test speed above 3400 rpm.
    (3) You may optionally certify your engines according to the 
following formula instead of the standards in paragraph (a)(1) of this 
section: (HC+NOX) x CO\0.784\ <= 8.57. The HC+NOX 
and CO emission levels you select to satisfy this formula, rounded to 
the nearest 0.1 g/kW-hr, become the emission standards that apply for 
those engines. You may not select an HC+NOX emission 
standard higher than 2.7 g/kW-hr or a CO emission standard higher than 
20.6 g/kW-hr. The following table illustrates a range of possible 
values under this paragraph (a)(3):

   Table 1 of Sec.   1048.101.--Examples of Possible Tier 2 Duty-cycle
                           Emission Standards
------------------------------------------------------------------------
                                                              CO  (g/kW-
                     HC+NOX  (g/kW-hr)                           hr)
------------------------------------------------------------------------
2.7........................................................          4.4
2.2........................................................          5.6
1.7........................................................          7.9
1.3........................................................         11.1
1.0........................................................         15.5
0.8........................................................         20.6
------------------------------------------------------------------------

    (b) Standards for steady-state testing. Except as we allow in 
paragraph (d) of this section, steady-state exhaust emissions from your 
engines may not exceed emission standards, as follows:
    (1) Measure emissions using the applicable steady-state test 
procedures described in subpart F of this part:
    (2) The following table shows the Tier 1 exhaust emission standards 
that apply to engines from 2004 through 2006 model years:

                        Table 2 of Sec.   1048.101.--Tier 1 Emission Standards (g/kW-hr)
----------------------------------------------------------------------------------------------------------------
                                                                  General emission         Alternate emission
                                                                      standards           standards for severe-
                           Testing                           --------------------------       duty engines
                                                                                       -------------------------
                                                                 HC+NOX         CO         HC+NOX         CO
----------------------------------------------------------------------------------------------------------------
Certification and production-line testing...................          4.0         50.0          4.0        130.0
In-use testing..............................................          5.4         50.0          5.4        130.0
----------------------------------------------------------------------------------------------------------------

    (3) Starting in the 2007 model year, steady-state exhaust emissions 
from your engines may not exceed the numerical emission standards in 
paragraph (a) of this section. See paragraph (d) of this section for 
alternate standards that apply for certain engines.
    (c) Standards for field testing. Starting in 2007, exhaust 
emissions may not exceed field-testing standards, as follows:
    (1) Measure emissions using the field-testing procedures in subpart 
F of this part:
    (2) The HC+NOX standard is 3.8 g/kW-hr and the CO 
standard is 6.5 g/kW-hr. For severe-duty engines, the HC+NOX 
standard is 3.8 g/kW-hr and the CO standard is 200.0 g/kW-hr. For 
natural gas-fueled engines, you are not required to measure nonmethane 
hydrocarbon emissions or total hydrocarbon emissions for testing to 
show that the engine meets the emission standards of this paragraph 
(c); that is, you may assume HC emissions are equal to zero.
    (3) You may apply the following formula to determine alternate 
emission standards that apply to your engines instead of the standards 
in paragraph (c)(1) of this section: (HC+NOX) x 
CO0.791 <= 16.78. HC+NOX emission levels may not 
exceed 3.8 g/kW-hr and CO emission levels may not exceed 31.0 g/kW-hr. 
The following table illustrates a range of possible values under this 
paragraph (c)(2):

[[Page 40467]]



 Table 3 of Sec.   1048.101.--Examples of Possible Tier 2 Field-testing
                           Emission Standards
------------------------------------------------------------------------
                                                              CO  (g/kW-
                     HC+NOX  (g/kW-hr)                           hr)
------------------------------------------------------------------------
3.8........................................................          6.5
3.1........................................................          8.5
2.4........................................................         11.7
1.8........................................................         16.8
1.4........................................................         23.1
1.1........................................................         31.0
------------------------------------------------------------------------

* * * * *
    (e) Fuel types. The exhaust emission standards in this section 
apply for engines using each type of fuel specified in 40 CFR part 
1065, subpart H, on which the engines in the engine family are designed 
to operate, except for engines certified under Sec.  1048.625. For 
engines certified under Sec.  1048.625, the standards of this section 
apply to emissions measured using the specified test fuel. You must 
meet the numerical emission standards for hydrocarbons in this section 
based on the following types of hydrocarbon emissions for engines 
powered by the following fuels:
    (1) Gasoline- and LPG-fueled engines: THC emissions.
    (2) Natural gas-fueled engines: NMHC emissions.
    (3) Alcohol-fueled engines: THCE emissions.
* * * * *
    (g) Useful life. Your engines must meet the exhaust emission 
standards in paragraphs (a) through (c) of this section over their full 
useful life. For severe-duty engines, the minimum useful life is 1,500 
hours of operation or seven years, whichever comes first. For all other 
engines, the minimum useful life is 5,000 hours of operation or seven 
years, whichever comes first.
    (1) Specify a longer useful life in hours for an engine family 
under either of two conditions:
    (i) If you design, advertise, or market your engine to operate 
longer than the minimum useful life (your recommended hours until 
rebuild may indicate a longer design life).
    (ii) If your basic mechanical warranty is longer than the minimum 
useful life.
    (2) You may request in your application for certification that we 
approve a shorter useful life for an engine family. We may approve a 
shorter useful life, in hours of engine operation but not in years, if 
we determine that these engines will rarely operate longer than the 
shorter useful life. If engines identical to those in the engine family 
have already been produced and are in use, your demonstration must 
include documentation from such in-use engines. In other cases, your 
demonstration must include an engineering analysis of information 
equivalent to such in-use data, such as data from research engines or 
similar engine models that are already in production. Your 
demonstration must also include any overhaul interval that you 
recommend, any mechanical warranty that you offer for the engine or its 
components, and any relevant customer design specifications. Your 
demonstration may include any other relevant information. The useful 
life value may not be shorter than any of the following:
    (i) 1,000 hours of operation.
    (ii) Your recommended overhaul interval.
    (iii) Your mechanical warranty for the engine.
    (h) Applicability for testing. The emission standards in this 
subpart apply to all testing, including certification, production-line, 
and in-use testing. For production-line testing, you must perform duty-
cycle testing as specified in Sec. Sec.  1048.505 and 1048.510. The 
field-testing standards of this section apply for those tests. You need 
not do additional testing of production-line engines to show that your 
engines meet the field-testing standards.

0
219. Section 1048.105 is amended by revising the section heading and 
adding introductory text to read as follows:


Sec.  1048.105  What evaporative emission standards and requirements 
apply?

    The requirements of this section apply to all engines that are 
subject to this part, except auxiliary marine engines.
* * * * *

0
220. Section 1048.115 is amended by removing and reserving paragraph 
(d) and revising the introductory text and paragraphs (a), (b), (e), 
and (g) to read as follows:


Sec.  1048.115  What other requirements must my engines meet?

    Engines subject to this part must meet the following requirements:
    (a) Crankcase emissions. Crankcase emissions may not be discharged 
directly into the ambient atmosphere from any engine throughout its 
useful life, except as follows:
    (1) Engines may discharge crankcase emissions to the ambient 
atmosphere if the emissions are added to the exhaust emissions (either 
physically or mathematically) during all emission testing. If you take 
advantage of this exception, you must do the following things:
    (i) Manufacture the engines so that all crankcase emissions can be 
routed into the applicable sampling systems specified in 40 CFR part 
1065.
    (ii) Account for deterioration in crankcase emissions when 
determining exhaust deterioration factors.
    (2) For purposes of this paragraph (a), crankcase emissions that 
are routed to the exhaust upstream of exhaust aftertreatment during all 
operation are not considered to be discharged directly into the ambient 
atmosphere.
    (b) Torque broadcasting. Electronically controlled engines must 
broadcast their speed and output shaft torque (in newton-meters). 
Engines may alternatively broadcast a surrogate value for determining 
torque. Engines must broadcast engine parameters such that they can be 
read with a remote device, or broadcast them directly to their 
controller area networks. This information is necessary for testing 
engines in the field (see Sec.  1048.515). This requirement applies 
beginning in the 2007 model year. Small-volume engine manufacturers may 
omit this requirement.
* * * * *
    (e) Adjustable parameters. Engines that have adjustable parameters 
must meet all the requirements of this part for any adjustment in the 
physically adjustable range. An operating parameter is not considered 
adjustable if you permanently seal it or if it is not normally 
accessible using ordinary tools. We may require that you set adjustable 
parameters to any specification within the adjustable range during any 
testing, including certification testing, selective enforcement 
auditing, or in-use testing.
* * * * *
    (g) Defeat devices. You may not equip your engines with a defeat 
device. A defeat device is an auxiliary emission-control device that 
reduces the effectiveness of emission controls under conditions that 
the engine may reasonably be expected to encounter during normal 
operation and use. This does not apply to auxiliary-emission control 
devices you identify in your certification application if any of the 
following is true:
    (1) The conditions of concern were substantially included in the 
applicable test procedures described in subpart F of this part.
    (2) You show your design is necessary to prevent engine (or 
equipment) damage or accidents.
    (3) The reduced effectiveness applies only to starting the engine.

0
221. Section 1048.120 is revised to read as follows:

[[Page 40468]]

Sec.  1048.120  What emission-related warranty requirements apply to 
me?

    (a) General requirements. You must warrant to the ultimate 
purchaser and each subsequent purchaser that the new nonroad engine, 
including all parts of its emission-control system, meets two 
conditions:
    (1) It is designed, built, and equipped so it conforms at the time 
of sale to the ultimate purchaser with the requirements of this part.
    (2) It is free from defects in materials and workmanship that may 
keep it from meeting these requirements.
    (b) Warranty period. Your emission-related warranty must be valid 
for at least 50 percent of the engine's useful life in hours of 
operation or at least three years, whichever comes first. In the case 
of a high-cost warranted part, the warranty must be valid for at least 
70 percent of the engine's useful life in hours of operation or at 
least five years, whichever comes first. You may offer an emission-
related warranty more generous than we require. The emission-related 
warranty for the engine may not be shorter than any published warranty 
you offer without charge for the engine. Similarly, the emission-
related warranty for any component may not be shorter than any 
published warranty you offer without charge for that component. If an 
engine has no hour meter, we base the warranty periods in this 
paragraph (b) only on the engine's age (in years). The warranty period 
begins when the engine is placed into service.
    (c) Components covered. The emission-related warranty covers all 
components whose failure would increase an engine's emissions of any 
pollutant. This includes components listed in 40 CFR part 1068, 
Appendix I, and components from any other system you develop to control 
emissions. The emission-related warranty covers these components even 
if another company produces the component. Your emission-related 
warranty does not cover components whose failure would not increase an 
engine's emissions of any pollutant.
    (d) Limited applicability. You may deny warranty claims under this 
section if the operator caused the problem through improper maintenance 
or use, as described in 40 CFR 1068.115.
    (e) Owners manual. Describe in the owners manual the emission-
related warranty provisions from this section that apply to the engine.

0
222. Section 1048.125 is revised to read as follows:


Sec.  1048.125  What maintenance instructions must I give to buyers?

    Give the ultimate purchaser of each new nonroad engine written 
instructions for properly maintaining and using the engine, including 
the emission-control system. The maintenance instructions also apply to 
service accumulation on your emission-data engines, as described in 40 
CFR part 1065.
    (a) Critical emission-related maintenance. Critical emission-
related maintenance includes any adjustment, cleaning, repair, or 
replacement of critical emission-related components. This may also 
include additional emission-related maintenance that you determine is 
critical if we approve it in advance. You may schedule critical 
emission-related maintenance on these components if you meet the 
following conditions:
    (1) You demonstrate that the maintenance is reasonably likely to be 
done at the recommended intervals on in-use engines. We will accept 
scheduled maintenance as reasonably likely to occur if you satisfy any 
of the following conditions:
    (i) You present data showing that, if a lack of maintenance 
increases emissions, it also unacceptably degrades the engine's 
performance.
    (ii) You present survey data showing that at least 80 percent of 
engines in the field get the maintenance you specify at the recommended 
intervals.
    (iii) You provide the maintenance free of charge and clearly say so 
in maintenance instructions for the customer.
    (iv) You otherwise show us that the maintenance is reasonably 
likely to be done at the recommended intervals.
    (2) You may not schedule critical emission-related maintenance more 
frequently than the following minimum intervals, except as specified in 
paragraphs (a)(3),
    (b) and (c) of this section:
    (i) For catalysts, fuel injectors, electronic control units, 
superchargers, and turbochargers: The useful life of the engine family.
    (ii) For gaseous fuel-system components (cleaning without 
disassembly only) and oxygen sensors: 2,500 hours.
    (3) If your engine family has an alternate useful life under Sec.  
1048.101(g) that is shorter than the period specified in paragraph 
(a)(2)(ii) of this section, you may not schedule critical emission-
related maintenance more frequently than the alternate useful life, 
except as specified in paragraph (c) of this section.
    (b) Recommended additional maintenance. You may recommend any 
additional amount of maintenance on the components listed in paragraph 
(a) of this section, as long as you state clearly that these 
maintenance steps are not necessary to keep the emission-related 
warranty valid. If operators do the maintenance specified in paragraph 
(a) of this section, but not the recommended additional maintenance, 
this does not allow you to disqualify those engines from in-use testing 
or deny a warranty claim. Do not take these maintenance steps during 
service accumulation on your emission-data engines.
    (c) Special maintenance. You may specify more frequent maintenance 
to address problems related to special situations, such as substandard 
fuel or atypical engine operation. For example, you may specify more 
frequent cleaning of fuel system components for engines you have reason 
to believe will be using fuel that causes substantially more engine 
performance problems than commercial fuels of the same type that are 
generally available across the United States. You must clearly state 
that this additional maintenance is associated with the special 
situation you are addressing.
    (d) Noncritical emission-related maintenance. You may schedule any 
amount of emission-related inspection or maintenance that is not 
covered by paragraph (a) of this section, as long as you state in the 
owners manual that these steps are not necessary to keep the emission-
related warranty valid. If operators fail to do this maintenance, this 
does not allow you to disqualify those engines from in-use testing or 
deny a warranty claim. Do not take these inspection or maintenance 
steps during service accumulation on your emission-data engines.
    (e) Maintenance that is not emission-related. For maintenance 
unrelated to emission controls, you may schedule any amount of 
inspection or maintenance. You may also take these inspection or 
maintenance steps during service accumulation on your emission-data 
engines, as long as they are reasonable and technologically necessary. 
This might include adding engine oil, changing air, fuel, or oil 
filters, servicing engine-cooling systems, and adjusting idle speed, 
governor, engine bolt torque, valve lash, or injector lash. You may 
perform this nonemission-related maintenance on emission-data engines 
at the least frequent intervals that you recommend to the ultimate 
purchaser (but not the intervals recommended for severe service).


[[Continued on page 40469]]


From the Federal Register Online via GPO Access [wais.access.gpo.gov]
]                         
 
[[pp. 40469-40518]] Test Procedures for Testing Highway and Nonroad Engines and 
Omnibus Technical Amendments

[[Continued from page 40468]]

[[Page 40469]]

    (f) Source of parts and repairs. State clearly on the first page of 
your written maintenance instructions that a repair shop or person of 
the owner's choosing may maintain, replace, or repair emission-control 
devices and systems. Your instructions may not require components or 
service identified by brand, trade, or corporate name. Also, do not 
directly or indirectly condition your warranty on a requirement that 
the engine be serviced by your franchised dealers or any other service 
establishments with which you have a commercial relationship. You may 
disregard the requirements in this paragraph (f) if you do one of two 
things:
    (1) Provide a component or service without charge under the 
purchase agreement.
    (2) Get us to waive this prohibition in the public's interest by 
convincing us the engine will work properly only with the identified 
component or service.
    (g) Payment for scheduled maintenance. Owners are responsible for 
properly maintaining their engines. This generally includes paying for 
scheduled maintenance. However, manufacturers must pay for scheduled 
maintenance during the useful life if it meets all the following 
criteria:
    (1) Each affected component was not in general use on similar 
engines before January 1, 2004.
    (2) The primary function of each affected component is to reduce 
emissions.
    (3) The cost of the scheduled maintenance is more than 2 percent of 
the price of the engine.
    (4) Failure to perform the maintenance would not cause clear 
problems that would significantly degrade the engine's performance.
    (h) Owners manual. Explain the owner's responsibility for proper 
maintenance in the owners manual.

0
223. Section 1048.130 is amended by revising paragraphs (a), (b)(3), 
(b)(7), and (b)(8); and adding paragraph (d) to read as follows:


Sec.  1048.130  What installation instructions must I give to equipment 
manufacturers?

    (a) If you sell an engine for someone else to install in a piece of 
nonroad equipment, give the engine installer instructions for 
installing it consistent with the requirements of this part. Include 
all information necessary to ensure that an engine will be installed in 
its certified configuration.
    (b) * * *
    (3) Describe the instructions needed to properly install the 
exhaust system and any other components. Include instructions 
consistent with the requirements of Sec.  1048.205(v).
* * * * *
    (7) Describe any other instructions to make sure the installed 
engine will operate according to design specifications in your 
application for certification. This may include, for example, 
instructions for installing aftertreatment devices when installing the 
engines.
    (8) State: ``If you install the engine in a way that makes the 
engine's emission control information label hard to read during normal 
engine maintenance, you must place a duplicate label on the equipment, 
as described in 40 CFR 1068.105.''.
* * * * *
    (d) Provide instructions in writing or in an equivalent format. For 
example, you may post instructions on a publicly available Web site for 
downloading or printing. If you do not provide the instructions in 
writing, explain in your application for certification how you will 
ensure that each installer is informed of the installation 
requirements.

0
224. Section 1048.135 is revised to read as follows:


Sec.  1048.135  How must I label and identify the engines I produce?

    (a) Assign each engine a unique identification number and 
permanently affix, engrave, or stamp it on the engine in a legible way.
    (b) At the time of manufacture, affix a permanent and legible label 
identifying each engine. The label must be--
    (1) Attached in one piece so it is not removable without being 
destroyed or defaced.
    (2) Secured to a part of the engine needed for normal operation and 
not normally requiring replacement.
    (3) Durable and readable for the engine's entire life.
    (4) Written in English.
    (c) The label must--
    (1) Include the heading ``EMISSION CONTROL INFORMATION''.
    (2) Include your full corporate name and trademark. You may 
identify another company and use its trademark instead of yours if you 
comply with the provisions of Sec.  1048.635.
    (3) Include EPA's standardized designation for the engine family 
(and subfamily, where applicable).
    (4) State the engine's displacement (in liters); however, you may 
omit this from the label if all the engines in the engine family have 
the same per-cylinder displacement and total displacement.
    (5) State the date of manufacture [MONTH and YEAR]. You may omit 
this from the label if you keep a record of the engine-manufacture 
dates and provide it to us upon request.
    (6) Identify the emission-control system. Use terms and 
abbreviations consistent with SAE J1930 (incorporated by reference in 
Sec.  1048.810). You may omit this information from the label if there 
is not enough room for it and you put it in the owners manual instead.
    (7) State: ``THIS ENGINE IS CERTIFIED TO OPERATE ON [specify 
operating fuel or fuels].''.
    (8) Identify any requirements for fuel and lubricants. You may omit 
this information from the label if there is not enough room for it and 
you put it in the owners manual instead.
    (9) List specifications and adjustments for engine tuneups; show 
the proper position for the transmission during tuneup and state which 
accessories should be operating. You may omit this information from the 
label if there is not enough room for it and you put it in the owners 
manual instead.
    (10) State the useful life for your engine family if it has a 
longer useful life under Sec.  1048.101(g)(1) or a shortened useful 
life under Sec.  1048.101(g)(2).
    (11) Identify the emission standards to which you have certified 
the engine.
    (12) State: ``THIS ENGINE COMPLIES WITH U.S. EPA REGULATIONS FOR 
[MODEL YEAR] LARGE NONROAD SI ENGINES.''.
    (13) If your engines are certified only for constant-speed 
operation, state: ``USE IN CONSTANT-SPEED APPLICATIONS ONLY''.
    (14) If your engines are certified only for variable-speed 
operation, state: ``USE IN VARIABLE-SPEED APPLICATIONS ONLY''.
    (15) If your engines are certified only for high-load engines, 
state: ``THIS ENGINE IS NOT INTENDED FOR OPERATION AT LESS THAN 75 
PERCENT OF FULL LOAD.''.
    (16) If you certify your engines under Sec.  1048.101(d) (and show 
in your application for certification that in-use engines will 
experience infrequent high-load operation), state: ``THIS ENGINE IS NOT 
INTENDED FOR OPERATION AT MORE THAN--PERCENT OF FULL LOAD.''. Specify 
the appropriate percentage of full load based on the nature of the 
engine protection. You may add other statements to discourage operation 
in engine-protection modes.
    (17) If your engines are certified to the voluntary standards in 
Sec.  1048.140, state: ``BLUE SKY SERIES''.
    (d) You may add information to the emission control information 
label to identify other emission standards that the engine meets or 
does not meet (such

[[Page 40470]]

as California standards). You may also add other information to ensure 
that the engine will be properly maintained and used.
    (e) You may ask us to approve modified labeling requirements in 
this part 1048 if you show that it is necessary or appropriate. We will 
approve your request if your alternate label is consistent with the 
requirements of this part.
    (f) If you obscure the engine label while installing the engine in 
the equipment such that the label will be hard to read during normal 
maintenance, you must place a duplicate label on the equipment. If 
others install your engine in their equipment in a way that obscures 
the engine label, we require them to add a duplicate label on the 
equipment (see 40 CFR 1068.105); in that case, give them the number of 
duplicate labels they request and keep the following records for at 
least five years:
    (1) Written documentation of the request from the equipment 
manufacturer.
    (2) The number of duplicate labels you send and the date you sent 
them.

0
225. Section 1048.140 is amended by revising paragraph (c) to read as 
follows:


Sec.  1048.140  What are the provisions for certifying Blue Sky Series 
engines?

* * * * *
    (c) For any model year, to receive a certificate of conformity as a 
``Blue Sky Series'' engine family must meet all the requirements in 
this part while certifying to one of the sets of exhaust emission 
standards in the following table:

  Table 1 of Sec.   1048.140.--Long-Term Standards for Blue Sky Series
                            Engines (g/kW-hr)
------------------------------------------------------------------------
   Standards for steady-state and         Standards for field-testing
      transient test procedures                   procedures
------------------------------------------------------------------------
      HC+NOX               CO              HC+NOX              CO
------------------------------------------------------------------------
         0.80                4.4              1.10               6.6
         0.60                4.4              0.84               6.6
         0.40                4.4              0.56               6.6
         0.20                4.4              0.28               6.6
         0.10                4.4              0.14               6.6
------------------------------------------------------------------------

* * * * *

0
226. Section 1048.145 is amended by revising the section heading and 
paragraph (a) and removing and reserving paragraph(c) to read as 
follows:


Sec.  1048.145  Are there interim provisions that apply only for a 
limited time?

* * * * *
    (a) Family banking. This paragraph (a) allows you to reduce the 
number of engines subject to the Tier 2 standards by certifying some of 
your engines earlier than otherwise required, as follows:
    (1) For early-compliant engines to generate offsets under this 
paragraph (a), you must meet the following general provisions:
    (i) You must begin actual production of early-compliant engines by 
September 1, 2006.
    (ii) Engines you produce after December 31, 2006 may not generate 
offsets.
    (iii) Offset-generating engines must be certified to the Tier 2 
standards and requirements under this part 1048.
    (iv) If you certify engines under the voluntary standards of Sec.  
1048.140, you may not use them in your calculation under this paragraph 
(a).
    (2) For every offset-generating engine certified to the Tier 2 
standards, you may reduce the number of engines with the same maximum 
engine power that are required to meet the Tier 2 standards in later 
model years by one engine. You may calculate power-weighted offsets 
based on actual U.S.-directed sales volumes. For example, if you 
produce a total of 1,000 engines in 2005 and 2006 with an average 
maximum power of 60 kW certified to the Tier 2 standards, you may delay 
certification to that tier of standards for up to 60,000 kW-engine-
years in any of the following ways:
    (i) Delay certification of up to 600 engines with an average 
maximum power of 100 kW for one model year.
    (ii) Delay certification of up to 200 engines with an average 
maximum power of 100 kW for three consecutive model years.
    (iii) Delay certification of up to 400 engines with an average 
maximum power of 100 kW for one model year and up to 50 engines with an 
average maximum power of 200 kW for two model years.
    (3) Offset-using engines (that is, those not required to certify to 
the Tier 2 standards) must be certified to the Tier 1 standards and 
requirements of this part 1048. You may delay compliance for up to 
three model years.
    (4) By January 31 of each year in which you use the provisions of 
this paragraph (a), send us a report describing how many offset-
generating or offset-using engines you produced in the preceding model 
year.
* * * * *

0
227. Section 1048.201 is revised to read as follows:


Sec.  1048.201  What are the general requirements for obtaining a 
certificate of conformity?

    (a) You must send us a separate application for a certificate of 
conformity for each engine family. A certificate of conformity is valid 
from the indicated effective date untilDecember 31 of the model year 
for which it is issued.
    (b) The application must contain all the information required by 
this part and must not include false or incomplete statements or 
information (see Sec.  1048.255).
    (c) We may ask you to include less information than we specify in 
this subpart, as long as you maintain all the information required by 
Sec.  1048.250.
    (d) You must use good engineering judgment for all decisions 
related to your application (see 40 CFR 1068.5).
    (e) An authorized representative of your company must approve and 
sign the application.
    (f) See Sec.  1048.255 for provisions describing how we will 
process your application.
    (g) We may require you to deliver your test engines to a facility 
we designate for our testing (see Sec.  1048.235(c)).

0
228. Section 1048.205 is revised to read as follows:


Sec.  1048.205  What must I include in my application?

    This section specifies the information that must be in your 
application, unless we ask you to include less information under Sec.  
1048.201(c). We may require you to provide additional information to 
evaluate your application.
    (a) Describe the engine family's specifications and other basic 
parameters of the engine's design and emission controls. List the fuel 
types on

[[Page 40471]]

which your engines are designed to operate (for example, gasoline and 
natural gas). List each distinguishable engine configuration in the 
engine family.
    (b) Explain how the emission-control system operates. Describe in 
detail all system components for controlling exhaust emissions, 
including all auxiliary-emission control devices (AECDs) and all fuel-
system components you will install on any production or test engine. 
Describe the evaporative emission controls. Identify the part number of 
each component you describe. For this paragraph (b), treat as separate 
AECDs any devices that modulate or activate differently from each 
other. Include all the following:
    (1) Give a general overview of the engine, the emission-control 
strategies, and all AECDs.
    (2) Describe each AECD's general purpose and function.
    (3) Identify the parameters that each AECD senses (including 
measuring, estimating, calculating, or empirically deriving the 
values). Include equipment-based parameters and state whether you 
simulate them during testing with the applicable procedures.
    (4) Describe the purpose for sensing each parameter.
    (5) Identify the location of each sensor the AECD uses.
    (6) Identify the threshold values for the sensed parameters that 
activate the AECD.
    (7) Describe the parameters that the AECD modulates (controls) in 
response to any sensed parameters, including the range of modulation 
for each parameter, the relationship between the sensed parameters and 
the controlled parameters and how the modulation achieves the AECD's 
stated purpose. Use graphs and tables, as necessary.
    (8) Describe each AECD's specific calibration details. This may be 
in the form of data tables, graphical representations, or some other 
description.
    (9) Describe the hierarchy among the AECDs when multiple AECDs 
sense or modulate the same parameter. Describe whether the strategies 
interact in a comparative or additive manner and identify which AECD 
takes precedence in responding, if applicable.
    (10) Explain the extent to which the AECD is included in the 
applicable test procedures specified in subpart F of this part.
    (11) Do the following additional things for AECDs designed to 
protect engines or equipment:
    (i) Identify the engine and/or equipment design limits that make 
protection necessary and describe any damage that would occur without 
the AECD.
    (ii) Describe how each sensed parameter relates to the protected 
components' design limits or those operating conditions that cause the 
need for protection.
    (iii) Describe the relationship between the design limits/
parameters being protected and the parameters sensed or calculated as 
surrogates for those design limits/parameters, if applicable.
    (iv) Describe how the modulation by the AECD prevents engines and/
or equipment from exceeding design limits.
    (v) Explain why it is necessary to estimate any parameters instead 
of measuring them directly and describe how the AECD calculates the 
estimated value, if applicable.
    (vi) Describe how you calibrate the AECD modulation to activate 
only during conditions related to the stated need to protect components 
and only as needed to sufficiently protect those components in a way 
that minimizes the emission impact.
    (c) Explain how the engine diagnostic system works, describing 
especially the engine conditions (with the corresponding diagnostic 
trouble codes) that cause the malfunction-indicator light to go on. 
Propose what you consider to be extreme conditions under which the 
diagnostic system should disregard trouble codes, as described in Sec.  
1048.110.
    (d) Describe the engines you selected for testing and the reasons 
for selecting them.
    (e) Describe the test equipment and procedures that you used, 
including any special or alternate test procedures you used (see Sec.  
1048.501).
    (f) Describe how you operated the emission-data engine before 
testing, including the duty cycle and the number of engine operating 
hours used to stabilize emission levels. Explain why you selected the 
method of service accumulation. Describe any scheduled maintenance you 
did.
    (g) List the specifications of each test fuel to show that it falls 
within the required ranges we specify in 40 CFR part 1065, subpart H.
    (h) Identify the engine family's useful life.
    (i) Include the maintenance instructions you will give to the 
ultimate purchaser of each new nonroad engine (see Sec.  1048.125).
    (j) Include the emission-related installation instructions you will 
provide if someone else installs your engines in a piece of nonroad 
equipment (see Sec.  1048.130).
    (k) Identify each high-cost warranted part and show us how you 
calculated its replacement cost, including the estimated retail cost of 
the part, labor rates, and labor hours to diagnose and replace 
defective parts.
    (l) Describe your emission control information label (see Sec.  
1048.135).
    (m) Identify the emission standards to which you are certifying 
engines in the engine family.
    (n) Identify the engine family's deterioration factors and describe 
how you developed them (see Sec.  1048.240). Present any emission test 
data you used for this.
    (o) State that you operated your emission-data engines as described 
in the application(including the test procedures, test parameters, and 
test fuels) to show you meet the requirements of this part.
    (p) Present emission data to show that you meet emission standards, 
as follows:
    (1) Present exhaust emission data for HC, NOX, and CO on 
an emission-data engine to show your engines meet the applicable duty-
cycle emission standards we specify in Sec.  1048.101. Show emission 
figures before and after applying adjustment factors for deterioration 
factors for each engine. Include test data for each type of fuel from 
40 CFR part 1065, subpart H, on which you intend for engines in the 
engine family to operate (for example, gasoline, liquefied petroleum 
gas, methanol, or natural gas). If we specify more than one grade of 
any fuel type (for example, a summer grade and winter grade of 
gasoline), you only need to submit test data for one grade, unless the 
regulations of this part specify otherwise for your engine. Note that 
Sec.  1048.235 allows you to submit an application in certain cases 
without new emission data.
    (2) If your engine family includes a volatile liquid fuel (and you 
do not use design-based certification under Sec.  1048.245), present 
evaporative test data to show your vehicles meet the evaporative 
emission standards we specify in subpart B of this part. Show these 
figures before and after applying deterioration factors, where 
applicable.
    (q) State that all the engines in the engine family comply with the 
field-testing emission standards we specify in Sec.  1048.104 for all 
normal operation and use when tested as specified in Sec.  1048.515. 
Describe any relevant testing, engineering analysis, or other 
information in sufficient detail to support your statement.
    (r) For engines with maximum engine power above 560 kW, include 
information showing how your emission

[[Page 40472]]

controls will function during normal in-use transient operation. For 
example, this might include the following:
    (1) Emission data from transient testing of engines using 
measurement systems designed for measuring in-use emissions.
    (2) Comparison of the engine design for controlling transient 
emissions with that from engines for which you have emission data over 
the transient duty cycle for certification.
    (3) Detailed descriptions of control algorithms and other design 
parameters for controlling transient emissions.
    (s) Report all test results, including those from invalid tests or 
from any other tests, whether or not they were conducted according to 
the test procedures of subpart F of this part. If you measure 
CO2, report those emission levels. We may ask you to send 
other information to confirm that your tests were valid under the 
requirements of this part and 40 CFR part 1065.
    (t) Describe all adjustable operating parameters (see Sec.  
1048.115(e)), including production tolerances. Include the following in 
your description of each parameter:
    (1) The nominal or recommended setting.
    (2) The intended physically adjustable range.
    (3) The limits or stops used to establish adjustable ranges.
    (4) Information showing why the limits, stops, or other means of 
inhibiting adjustment are effective in preventing adjustment of 
parameters on in-use engines to settings outside your intended 
physically adjustable ranges.
    (u) Provide the information to read, record, and interpret all the 
information broadcast by an engine's onboard computers and electronic 
control units. State that, upon request, you will give us any hardware, 
software, or tools we would need to do this. If you broadcast a 
surrogate parameter for torque values, you must provide us what we need 
to convert these into torque units. You may reference any appropriate 
publicly released standards that define conventions for these messages 
and parameters. Format your information consistent with publicly 
released standards.
    (v) Confirm that your emission-related installation instructions 
specify how to ensure that sampling of exhaust emissions will be 
possible after engines are installed in equipment and placed in 
service. If this cannot be done by simply adding a 20-centimeter 
extension to the exhaust pipe, show how to sample exhaust emissions in 
a way that prevents diluting the exhaust sample with ambient air.
    (w) State whether your engine will operate in variable-speed 
applications, constant-speed applications, or both. If your 
certification covers only constant-speed or only variable-speed 
applications, describe how you will prevent use of these engines in 
applications for which they are not certified.
    (x) Unconditionally certify that all the engines in the engine 
family comply with the requirements of this part, other referenced 
parts of the CFR, and the Clean Air Act.
    (y) Include estimates of U.S.-directed production volumes.
    (z) Include other applicable information, such as information 
specified in this part or part 1068 of this chapter related to requests 
for exemptions.
    (aa) Name an agent for service of process located in the United 
States. Service on this agent constitutes service on you or any of your 
officers or employees for any action by EPA or otherwise by the United 
States related to the requirements of this part.

0
229. Section 1048.210 is revised to read as follows:


Sec.  1048.210  May I get preliminary approval before I complete my 
application?

    If you send us information before you finish the application, we 
will review it and make any appropriate determinations, especially for 
questions related to engine family definitions, auxiliary emission-
control devices, deterioration factors, testing for service 
accumulation, and maintenance. Decisions made under this section are 
considered to be preliminary approval, subject to final review and 
approval. We will generally not reverse a decision where we have given 
you preliminary approval, unless we find new information supporting a 
different decision. If you request preliminary approval related to the 
upcoming model year or the model year after that, we will make best-
efforts to make the appropriate determinations as soon as practicable. 
We will generally not provide preliminary approval related to a future 
model year more than two years ahead of time.


Sec.  1048.215  [Removed]

0
230. Section 1048.215 is removed.

0
231. Section 1048.220 is revised to read as follows:


Sec.  1048.220  How do I amend the maintenance instructions in my 
application?

    You may amend your emission-related maintenance instructions after 
you submit your application for certification, as long as the amended 
instructions remain consistent with the provisions of Sec.  1048.125. 
You must send the Designated Compliance Officer a request to amend your 
application for certification for an engine family if you want to 
change the emission-related maintenance instructions in a way that 
could affect emissions. In your request, describe the proposed changes 
to the maintenance instructions. We will disapprove your request if we 
determine that the amended instructions are inconsistent with 
maintenance you performed on emission-data engines.
    (a) If you are decreasing the specified maintenance, you may 
distribute the new maintenance instructions to your customers 30 days 
after we receive your request, unless we disapprove your request. We 
may approve a shorter time or waive this requirement.
    (b) If your requested change would not decrease the specified 
maintenance, you may distribute the new maintenance instructions 
anytime after you send your request. For example, this paragraph (b) 
would cover adding instructions to increase the frequency of a 
maintenance step for engines in severe-duty applications.
    (c) You need not request approval if you are making only minor 
corrections (such as correcting typographical mistakes), clarifying 
your maintenance instructions, or changing instructions for maintenance 
unrelated to emission control.

0
232. Section 1048.225 is revised to read as follows:


Sec.  1048.225  How do I amend my application for certification to 
include new or modified engines?

    Before we issue you a certificate of conformity, you may amend your 
application to include new or modified engine configurations, subject 
to the provisions of this section. After we have issued your 
certificate of conformity, you may send us an amended application 
requesting that we include new or modified engine configurations within 
the scope of the certificate, subject to the provisions of this 
section. You must amend your application if any changes occur with 
respect to any information included in your application.
    (a) You must amend your application before you take either of the 
following actions:
    (1) Add an engine (that is, an additional engine configuration) to 
an engine family. In this case, the engine added must be consistent 
with other engines in the engine family with respect to the criteria 
listed in Sec.  1048.230.

[[Page 40473]]

    (2) Change an engine already included in an engine family in a way 
that may affect emissions, or change any of the components you 
described in your application for certification. This includes 
production and design changes that may affect emissions any time during 
the engine's lifetime.
    (b) To amend your application for certification, send the 
Designated Compliance Officer the following information:
    (1) Describe in detail the addition or change in the engine model 
or configuration you intend to make.
    (2) Include engineering evaluations or data showing that the 
amended engine family complies with all applicable requirements. You 
may do this by showing that the original emission-data engine is still 
appropriate with respect to showing compliance of the amended family 
with all applicable requirements.
    (3) If the original emission-data engine for the engine family is 
not appropriate to show compliance for the new or modified nonroad 
engine, include new test data showing that the new or modified nonroad 
engine meets the requirements of this part.
    (c) We may ask for more test data or engineering evaluations. You 
must give us these within 30 days after we request them.
    (d) For engine families already covered by a certificate of 
conformity, we will determine whether the existing certificate of 
conformity covers your new or modified nonroad engine. You may ask for 
a hearing if we deny your request (see Sec.  1048.820).
    (e) For engine families already covered by a certificate of 
conformity, you may start producing the new or modified nonroad engine 
anytime after you send us your amended application, before we make a 
decision under paragraph (d) of this section. However, if we determine 
that the affected engines do not meet applicable requirements, we will 
notify you to cease production of the engines and may require you to 
recall the engines at no expense to the owner. Choosing to produce 
engines under this paragraph (e) is deemed to be consent to recall all 
engines that we determine do not meet applicable emission standards or 
other requirements and to remedy the nonconformity at no expense to the 
owner. If you do not provide information required under paragraph (c) 
of this section within 30 days, you must stop producing the new or 
modified nonroad engines.

0
233. Section 1048.230 is revised to read as follows:


Sec.  1048.230  How do I select engine families?

    (a) Divide your product line into families of engines that are 
expected to have similar emission characteristics throughout the useful 
life. Your engine family is limited to a single model year.
    (b) Group engines in the same engine family if they are the same in 
all of the following aspects:
    (1) The combustion cycle.
    (2) The cooling system (water-cooled vs. air-cooled).
    (3) Configuration of the fuel system (for example, fuel injection 
vs. carburetion).
    (4) Method of air aspiration.
    (5) The number, location, volume, and composition of catalytic 
converters.
    (6) The number, arrangement, and approximate bore diameter of 
cylinders.
    (7) Evaporative emission controls.
    (c) You may subdivide a group of engines that is identical under 
paragraph (b) of this section into different engine families if you 
show the expected emission characteristics are different during the 
useful life.
    (d) You may group engines that are not identical with respect to 
the things listed in paragraph (b) of this section in the same engine 
family if you show that their emission characteristics during the 
useful life will be similar.
    (e) You may create separate families for exhaust emissions and 
evaporative emissions. If we do this, list both families on the 
emission control information label.
    (f) Where necessary, you may divide an engine family into sub-
families to meet different emission standards, as specified in Sec.  
1048.101(a)(2). For issues related to compliance and prohibited 
actions, we will generally apply decisions to the whole engine family. 
For engine labels and other administrative provisions, we may approve 
your request for separate treatment of sub-families.

0
234. Section 1048.235 is revised to read as follows:


Sec.  1048.235  What emission testing must I perform for my application 
for a certificate of conformity?

    This section describes the emission testing you must perform to 
show compliance with the emission standards in Sec. Sec.  1048.101(a) 
and (b) and 1048.105 during certification. See Sec.  1048.205(q) 
regarding emission testing related to the field-testing standards. See 
Sec.  1048.240 and 40 CFR part 1065, subpart E, regarding service 
accumulation before emission testing.
    (a) Test your emission-data engines using the procedures and 
equipment specified in subpart F of this part. For any testing related 
to evaporative emissions, use good engineering judgment to include a 
complete fuel system with the engine.
    (b) Select emission-data engines according to the following 
criteria:
    (1) Exhaust testing. For each fuel type from each engine family, 
select an emission-data engine with a configuration that is most likely 
to exceed the exhaust emission standards, using good engineering 
judgment. Consider the emission levels of all exhaust constituents over 
the full useful life of the engine when operated in a piece of 
equipment.
    (2) Evaporative testing. For each engine family that includes a 
volatile liquid fuel, select a test fuel system with a configuration 
that is most likely to exceed the evaporative emission standards, using 
good engineering judgment.
    (c) We may measure emissions from any of your test engines or other 
engines from the engine family, as follows:
    (1) We may decide to do the testing at your plant or any other 
facility. If we do this, you must deliver the test engine to a test 
facility we designate. The test engine you provide must include 
appropriate manifolds, aftertreatment devices, electronic control 
units, and other emission-related components not normally attached 
directly to the engine block. If we do the testing at your plant, you 
must schedule it as soon as possible and make available the 
instruments, personnel, and equipment we need.
    (2) If we measure emissions on one of your test engines, the 
results of that testing become the official emission results for the 
engine. Unless we later invalidate these data, we may decide not to 
consider your data in determining if your engine family meets 
applicable requirements.
    (3) Before we test one of your engines, we may set its adjustable 
parameters to any point within the physically adjustable ranges (see 
Sec.  1048.115(e)).
    (4) Before we test one of your engines, we may calibrate it within 
normal production tolerances for anything we do not consider an 
adjustable parameter.
    (d) You may ask to use emission data from a previous model year 
instead of doing new tests, but only if all the following are true:
    (1) The engine family from the previous model year differs from the 
current engine family only with respect to model year.
    (2) The emission-data engine from the previous model year remains 
the appropriate emission-data engine under paragraph (b) of this 
section.
    (3) The data show that the emission-data engine would meet all the

[[Page 40474]]

requirements that apply to the engine family covered by the application 
for certification.
    (e) We may require you to test a second engine of the same or 
different configuration in addition to the engine tested under 
paragraph (b) of this section.
    (f) If you use an alternate test procedure under 40 CFR 1065.10 and 
later testing shows that such testing does not produce results that are 
equivalent to the procedures specified in subpart F of this part, we 
may reject data you generated using the alternate procedure.

0
235. Section 1048.240 is revised to read as follows:


Sec.  1048.240  How do I demonstrate that my engine family complies 
with exhaust emission standards?

    (a) For purposes of certification, your engine family is considered 
in compliance with the applicable numerical emission standards in Sec.  
1048.101(a) and (b) if all emission-data engines representing that 
family have test results showing deteriorated emission levels at or 
below these standards.
    (b) Your engine family is deemed not to comply if any emission-data 
engine representing that family has test results showing a deteriorated 
emission level above an applicable emission standard from Sec.  
1048.101 for any pollutant.
    (c) To compare emission levels from the emission-data engine with 
the applicable emission standards, apply deterioration factors to the 
measured emission levels for each pollutant. Specify the deterioration 
factors based on emission measurements using four significant figures, 
consistent with good engineering judgment. For example, your 
deterioration factors must take into account any available data from 
in-use testing with similar engines (see subpart E of this part). 
Small-volume engine manufacturers may use assigned deterioration 
factors that we establish. Apply deterioration factors as follows:
    (1) Multiplicative deterioration factor. For engines that use 
aftertreatment technology, such as catalytic converters, use a 
multiplicative deterioration factor for exhaust emissions. A 
multiplicative deterioration factor is the ratio of exhaust emissions 
at the end of useful life to exhaust emissions at the low-hour test 
point. Adjust the official emission results for each tested engine at 
the selected test point by multiplying the measured emissions by the 
deterioration factor. If the factor is less than one, use one.
    (2) Additive deterioration factor. For engines that do not use 
aftertreatment technology, use an additive deterioration factor for 
exhaust emissions. An additive deterioration factor is the difference 
between exhaust emissions at the end of useful life and exhaust 
emissions at the low-hour test point. Adjust the official emission 
results for each tested engine at the selected test point by adding the 
factor to the measured emissions. If the factor is less than zero, use 
zero.
    (d) Collect emission data using measurements to one more decimal 
place than the applicable standard. Apply the deterioration factor to 
the official emission result, as described in paragraph (c) of this 
section, then round the adjusted figure to the same number of decimal 
places as the emission standard. Compare the rounded emission levels to 
the emission standard for each emission-data engine. In the case of HC 
+ NOX standards, apply the deterioration factor to each 
pollutant and then add the results before rounding.

0
236. Section 1048.245 is amended by revising paragraph (e)(1)(i) to 
read as follows:


Sec.  1048.245  How do I demonstrate that my engine family complies 
with evaporative emission standards?

* * * * *
    (e) * * *
    (1) * * *
    (i) Use a tethered or self-closing gas cap on a fuel tank that 
stays sealed up to a positive pressure of 24.5 kPa (3.5 psig) or a 
vacuum pressure of 0.7 kPa (0.1 psig).
* * * * *

0
237. Section 1048.250 is amended by revising paragraphs (a) and (c) to 
read as follows:


Sec.  1048.250  What records must I keep and make available to EPA?

    (a) Organize and maintain the following records:
    (1) A copy of all applications and any summary information you send 
us.
    (2) Any of the information we specify in Sec.  1048.205 that you 
were not required to include in your application.
    (3) A detailed history of each emission-data engine. For each 
engine, describe all of the following:
    (i) The emission-data engine's construction, including its origin 
and buildup, steps you took to ensure that it represents production 
engines, any components you built specially for it, and all the 
components you include in your application for certification.
    (ii) How you accumulated engine operating hours (service 
accumulation), including the dates and the number of hours accumulated.
    (iii) All maintenance, including modifications, parts changes, and 
other service, and the dates and reasons for the maintenance.
    (iv) All your emission tests, including documentation on routine 
and standard tests, as specified in part 40 CFR part 1065, and the date 
and purpose of each test.
    (v) All tests to diagnose engine or emission-control performance, 
giving the date and time of each and the reasons for the test.
    (vi) Any other significant events.
    (4) Production figures for each engine family divided by assembly 
plant.
    (5) Keep a list of engine identification numbers for all the 
engines you produce under each certificate of conformity.
* * * * *
    (c) Store these records in any format and on any media, as long as 
you can promptly send us organized, written records in English if we 
ask for them. You must keep these records readily available. We may 
review them at any time.
* * * * *

0
238. Section 1048.255 is revised to read as follows:


Sec.  1048.255  When may EPA deny, revoke, or void my certificate of 
conformity?

    (a) If we determine your application is complete and shows that the 
engine family meets all the requirements of this part and the Act, we 
will issue a certificate of conformity for your engine family for that 
model year. We may make the approval subject to additional conditions.
    (b) We may deny your application for certification if we determine 
that your engine family fails to comply with emission standards or 
other requirements of this part or the Act. Our decision may be based 
on a review of all information available to us. If we deny your 
application, we will explain why in writing.
    (c) In addition, we may deny your application or suspend or revoke 
your certificate if you do any of the following:
    (1) Refuse to comply with any testing or reporting requirements.
    (2) Submit false or incomplete information (paragraph (e) of this 
section applies if this is fraudulent).
    (3) Render inaccurate any test data.
    (4) Deny us from completing authorized activities despite our 
presenting a warrant or court order (see 40 CFR 1068.20). This includes 
a failure to provide reasonable assistance.
    (5) Produce engines for importation into the United States at a 
location where local law prohibits us from carrying out authorized 
activities.

[[Page 40475]]

    (6) Fail to supply requested information or amend your application 
to include all engines being produced.
    (7) Take any action that otherwise circumvents the intent of the 
Act or this part.
    (d) We may void your certificate if you do not keep the records we 
require or do not give us information when we ask for it.
    (e) We may void your certificate if we find that you intentionally 
submitted false or incomplete information.
    (f) If we deny your application or suspend, revoke, or void your 
certificate, you may ask for a hearing (see Sec.  1048.820).

0
239. Section 1048.301 is amended by revising paragraphs (a) and (f) to 
read as follows:


Sec.  1048.301  When must I test my production-line engines?

    (a) If you produce engines that are subject to the requirements of 
this part, you must test them as described in this subpart.
* * * * *
    (f) We may ask you to make a reasonable number of production-line 
engines available for a reasonable time so we can test or inspect them 
for compliance with the requirements of this part. See 40 CFR 1068.27.

0
240. Section 1048.305 is amended by revising paragraphs (d)(1), (f), 
and (g) to read as follows:


Sec.  1048.305  How must I prepare and test my production-line engines?

* * * * *
    (d) * * *
    (1) We may adjust or require you to adjust idle speed outside the 
physically adjustable range as needed only until the engine has 
stabilized emission levels (see paragraph (e) of this section). We may 
ask you for information needed to establish an alternate minimum idle 
speed.
* * * * *
    (f) Damage during shipment. If shipping an engine to a remote 
facility for production-line testing makes necessary an adjustment or 
repair, you must wait until after the initial emission test to do this 
work. We may waive this requirement if the test would be impossible or 
unsafe, or if it would permanently damage the engine. Report to us, in 
your written report under Sec.  1048.345, all adjustments or repairs 
you make on test engines before each test.
    (g) Retesting after invalid tests. You may retest an engine if you 
determine an emission test is invalid under subpart F of this part. 
Explain in your written report reasons for invalidating any test and 
the emission results from all tests. If you retest an engine and, 
within ten days after testing, ask to substitute results of the new 
tests for the original ones, we will answer within ten days after we 
receive your information.

0
241. Section 1048.310 is amended by revising paragraphs (c) 
introductory text, (c)(2), (g), (h), and (i) to read as follows:


Sec.  1048.310  How must I select engines for production-line testing?

* * * * *
    (c) Calculate the required sample size for each engine family. 
Separately calculate this figure for HC+NOX and for CO. The 
required sample size is the greater of these two calculated values. Use 
the following equation:
[GRAPHIC] [TIFF OMITTED] TR13JY05.007

Where:

N = Required sample size for the model year.
t95 = 95% confidence coefficient, which depends on the 
number of tests completed, n, as specified in the table in paragraph 
(c)(1) of this section. It defines 95% confidence intervals for a one-
tail distribution.
x = Mean of emission test results of the sample.
STD = Emission standard.
[sigma] = Test sample standard deviation (see paragraph (c)(2) of this 
section).
n = The number of tests completed in an engine family.
* * * * *
    (2) Calculate the standard deviation, [sigma], for the test sample 
using the following formula:
[GRAPHIC] [TIFF OMITTED] TR13JY05.008

Where:

Xi = Emission test result for an individual engine.
* * * * *
    (g) Continue testing any engine family for which the sample mean, 
x, is greater than the emission standard. This applies if the sample 
mean for either HC+NOX or for CO is greater than the 
emission standard. Continue testing until one of the following things 
happens:
    (1) The number of tests completed in an engine family, n, is 
greater than the required sample size, N, and the sample mean, x, is 
less than or equal to the emission standard. For example, if N = 3.1 
after the third test, the sample-size calculation does not allow you to 
stop testing.
    (2) The engine family does not comply according to Sec.  1048.315.
    (3) You test 30 engines from the engine family.
    (4) You test one percent of your projected annual U.S.-directed 
production volume for the engine family, rounded to the nearest whole 
number. If your projected production is between 150 and 750 engines, 
test engines as specified in paragraph (b) of this section until you 
have tested one percent of your projected annual U.S.-directed 
production volume. For example, if projected volume is 475 engines, 
test two engines in each of the first two quarters and one engine in 
the third quarter to fulfill your testing requirements under this 
section for that engine family. If your projected production volume is 
less than 150, you must test at least two engines.
    (5) You choose to declare that the engine family does not comply 
with the requirements of this subpart.
    (h) If the sample-size calculation allows you to stop testing for a 
pollutant, you must continue measuring emission levels of that 
pollutant for any additional tests required under this section. 
However, you need not continue making the calculations specified in 
this section for that pollutant. This paragraph (h) does not affect the 
requirements in Sec.  1048.320.
    (i) You may elect to test more randomly chosen engines than we 
require under this section. Include these engines in the sample-size 
calculations.

0
242. Section 1048.315 is amended by revising the introductory text to 
read as follows:


Sec.  1048.315  How do I know when my engine family fails the 
production-line testing requirements?

    This section describes the pass/fail criteria for the production-
line testing requirements. We apply these criteria on an engine-family 
basis. See Sec.  1048.320 for the requirements that apply to individual 
engines that fail a production-line test.
* * * * *

0
243. Section 1048.325 is amended by revising paragraph (d) to read as 
follows:


Sec.  1048.325  What happens if an engine family fails the production-
line requirements?

* * * * *
    (d) Section 1048.335 specifies steps you must take to remedy the 
cause of the engine family's production-line failure. All the engines 
you have produced since the end of the last test period are presumed 
noncompliant and should be addressed in your proposed remedy. We may 
require you to apply the remedy to engines produced earlier if we 
determine that the cause of the

[[Page 40476]]

failure is likely to have affected the earlier engines.

0
244. Section 1048.345 is amended by revising paragraph (d) to read as 
follows:


Sec.  1048.345  What production-line testing records must I send to 
EPA?

* * * * *
    (d) Send electronic reports of production-line testing to the 
Designated ComplianceOfficer using an approved information format. If 
you want to use a different format, send us a written request with 
justification for a waiver.
* * * * *

0
245. Section 1048.350 is amended by revising paragraph (a) to read as 
follows:


Sec.  1048.350  What records must I keep?

    (a) Organize and maintain your records as described in this 
section. We may review your records at any time.
* * * * *

0
246. Section 1048.420 is amended by revising paragraph (b) to read as 
follows:


Sec.  1048.420  What in-use testing information must I report to EPA?

* * * * *
    (b) Send electronic reports of in-use testing to the Designated 
Compliance Officer using an approved information format. If you want to 
use a different format, send us a written request with justification 
for a waiver.
* * * * *

0
247. Section 1048.425 is amended by revising paragraph (a) to read as 
follows:


Sec.  1048.425  What records must I keep?

    (a) Organize and maintain your records as described in this 
section. We may review your records at any time.
* * * * *

0
248. Section 1048.501 is revised to read as follows:


Sec.  1048.501  How do I run a valid emission test?

    (a) Use the equipment and procedures for spark-ignition engines in 
40 CFR part 1065 to determine whether engines meet the duty-cycle 
emission standards in Sec.  1048.101(a) and (b). Measure the emissions 
of all the pollutants we regulate in Sec.  1048.101 using the sampling 
procedures specified in 40 CFR part 1065. Use the applicable duty 
cycles specified in Sec. Sec.  1048.505 and 1048.510.
    (b) Section 1048.515 describes the supplemental procedures for 
evaluating whether engines meet the field-testing emission standards in 
Sec.  1048.101(c).
    (c) Use the fuels specified in 40 CFR part 1065, subpart C, to 
perform valid tests for all the testing we require in this part, except 
as noted in Sec.  1048.515. For service accumulation, use the test fuel 
or any commercially available fuel that is representative of the fuel 
that in-use engines will use.
    (d) In place of the provisions of 40 CFR 1065.405, you may consider 
emission levels stable without measurement after 50 hours of engine 
operation.
    (e) To test engines for evaporative emissions, use the equipment 
and procedures specified for testing diurnal emissions in 40 CFR 
86.107-96 and 86.133-96 with fuel meeting the specifications in 40 CFR 
part 1065, subpart C. Measure emissions from a test engine with a 
complete fuel system. Reported emission levels must be based on the 
highest emissions from three successive 24-hour periods of cycling 
temperatures. Note that you may omit testing for evaporative emissions 
during certification if you certify by design, as specified in Sec.  
1048.245.
    (f) You may use special or alternate procedures to the extent we 
allow them under 40 CFR 1065.10.
    (g) This subpart is addressed to you as a manufacturer, but it 
applies equally to anyone who does testing for you, and to us when we 
perform testing to determine if your engines meet emission standards.
    (h) Map all engines (including constant-speed engines) using the 
procedures specified in 40 CFR part 1065 for variable-speed engines. 
For constant-speed engines, continue the mapping procedure until you 
reach the high-idle speed (the highest speed at which the engine 
produces zero torque).

0
249. Section 1048.505 is revised to read as follows:


Sec.  1048.505  How do I test engines using steady-state duty cycles, 
including ramped-modal testing?

    This section describes how to test engines under steady-state 
conditions. In some cases, we allow you to choose the appropriate 
steady-state duty cycle for an engine. In these cases, you must use the 
duty cycle you select in your application for certification for all 
testing you perform for that engine family. If we test your engines to 
confirm that they meet emission standards, we will use the duty cycles 
you select for your own testing. We may also perform other testing as 
allowed by the Clean Air Act.
    (a) You may perform steady-state testing with either discrete-mode 
or ramped-modal cycles, as follows:
    (1) For discrete-mode testing, sample emissions separately for each 
mode, then calculate an average emission level for the whole cycle 
using the weighting factors specified for each mode. Calculate cycle 
statistics for the sequence of modes and compare with the specified 
values in 40 CFR 1065.514 to confirm that the test is valid. Operate 
the engine and sampling system as follows:
    (i) Engines with lean NOX aftertreatment. For lean-burn engines 
that depend on aftertreatment to meet the NOX emission 
standard, operate the engine for 5-6 minutes, then sample emissions for 
1-3 minutes in each mode.
    (ii) Engines without lean NOX aftertreatment. For other engines, 
operate the engine for at least 5 minutes, then sample emissions for at 
least 1 minute in each mode. Calculate cycle statistics for the 
sequence of modes and compare with the specified values in 40 CFR part 
1065 to confirm that the test is valid.
    (2) For ramped-modal testing, start sampling at the beginning of 
the first mode and continue sampling until the end of the last mode. 
Calculate emissions and cycle statistics the same as for transient 
testing.
    (b) Measure emissions by testing the engine on a dynamometer with 
one or more of the following sets of duty cycles to determine whether 
it meets the steady-state emission standards in Sec.  1048.101(b):
    (1) For engines from an engine family that will be used only in 
variable-speed applications, use one of the following duty cycles:
    (i) The following duty cycle applies for discrete-mode testing:

                                           Table 1 of Sec.   1048.505
----------------------------------------------------------------------------------------------------------------
                                                                     Minimum  time
         C2 Mode No.            Engine speed \1\       Observed         in mode        Weighting
                                                      torque \2\       (minutes)        factors
--------------------------------------------------------------------------------------------------
1...........................  Maximum test speed..              25             3.0            0.06
2...........................  Intermediate test                100             3.0            0.02
                               speed.
3...........................  Intermediate test                 75             3.0            0.05
                               speed.

[[Page 40477]]


4...........................  Intermediate test                 50             3.0            0.32
                               speed.
5...........................  Intermediate test                 25             3.0            0.30
                               speed.
6...........................  Intermediate test                 10             3.0            0.10
                               speed.
7...........................  Idle................               0             3.0            0.15
----------------------------------------------------------------------------------------------------------------
\1\ Speed terms are defined in 40 CFR part 1065.
\2\ The percent torque is relative to the maximum torque at the given engine speed.

    (ii) The following duty cycle applies for ramped-modal testing:

                                           Table 2 of Sec.   1048.505
----------------------------------------------------------------------------------------------------------------
                                       Time in mode
              RMC mode                   (seconds)       Engine speed 1, 2           Torque  (percent) 2, 3
----------------------------------------------------------------------------------------------------------------
1a Steady-state.....................             119  Warm Idle..............  0
1b Transition.......................              20  Linear Transition......  Linear Transition.
2a Steady-state.....................              29  Intermediate Speed.....  100
2b Transition.......................              20  Intermediate Speed.....  Linear Transition.
3a Steady-state.....................             150  Intermediate Speed.....  10
3b Transition.......................              20  Intermediate Speed.....  Linear Transition.
4a Steady-state.....................              80  Intermediate Speed.....  75
4b Transition.......................              20  Intermediate Speed.....  Linear Transition.
5a Steady-state.....................             513  Intermediate Speed.....  25
5b Transition.......................              20  Intermediate Speed.....  Linear Transition.
6a Steady-state.....................             549  Intermediate Speed.....  50
5b Transition.......................              20  Linear Transition......  Linear Transition.
6a Steady-state.....................              96  Maximum test speed.....  25
6b Transition.......................              20  Linear Transition......  Linear Transition.
7 Steady-state......................             124  Warm Idle..............  0
----------------------------------------------------------------------------------------------------------------
\1\ Speed terms are defined in 40 CFR part 1065.
\2\ Advance from one mode to the next within a 20-second transition phase. During the transition phase, command
  a linear progression from the torque setting of the current mode to the torque setting of the next mode.
\3\ The percent torque is relative to maximum torque at the commanded engine speed.

    (2) For engines from an engine family that will be used only at a 
single, rated speed, use one of the following duty cycles:
    (i) The following duty cycle applies for discrete-mode testing:

                                           Table 3 of Sec.   1048.505
----------------------------------------------------------------------------------------------------------------
                                                                                   Minimum time
            D2 mode No.                      Engine speed           Torque \1\        in mode        Weighting
                                                                                     (minutes)        factors
----------------------------------------------------------------------------------------------------------------
1..................................  Maximum test...............             100             3.0            0.05
2..................................  Maximum test...............              75             3.0            0.25
3..................................  Maximum test...............              50             3.0            0.30
4..................................  Maximum test...............              25             3.0            0.30
5..................................  Maximum test...............              10             3.0            0.10
----------------------------------------------------------------------------------------------------------------
\1\ The percent torque is relative to the maximum torque at maximum test speed.

    (ii) The following duty cycle applies for ramped-modal testing:

                                           Table 4 of Sec.   1048.505
----------------------------------------------------------------------------------------------------------------
                                       Time in mode
              RMC mode                   (seconds)          Engine speed             Torque  (percent) 1 2
----------------------------------------------------------------------------------------------------------------
1a Steady-state.....................              53  Engine Governed........  100
1b Transition.......................              20  Engine Governed........  Linear transition.
2a Steady-state.....................             101  Engine Governed........  10
2b Transition.......................              20  Engine Governed........  Linear transition.
3a Steady-state.....................             277  Engine Governed........  75
3b Transition.......................              20  Engine Governed........  Linear transition.

[[Page 40478]]


4a Steady-state.....................             339  Engine Governed........  25
4b Transition.......................              20  Engine Governed........  Linear transition.
5 Steady-state......................             350  Engine Governed........  50
----------------------------------------------------------------------------------------------------------------
\1\ The percent torque is relative to maximum test torque.
\2\ Advance from one mode to the next within a 20-second transition phase. During the transition phase, command
  a linear progression from the torque setting of the current mode to the torque setting of the next mode.

    (3) Use a duty cycle from both paragraphs (b)(1) and (b)(2) of this 
section if you will not restrict an engine family to constant-speed or 
variable-speed applications.
    (4) Use a duty cycle specified in paragraph (b)(2) of this section 
for all severe-duty engines.
    (5) For high-load engines, use one of the following duty cycles:
    (i) The following duty cycle applies for discrete-mode testing:

                                           Table 5 of Sec.   1048.505
----------------------------------------------------------------------------------------------------------------
                                                                                   Minimum time
            D1 mode No.                      Engine speed           Torque \1\        in mode        Weighting
                                                                                     (minutes)        factors
----------------------------------------------------------------------------------------------------------------
1..................................  Maximum test...............             100             3.0            0.50
2..................................  Maximum test...............              75             3.0            0.50
----------------------------------------------------------------------------------------------------------------
\1\ The percent torque is relative to the maximum torque at maximum test speed.

    (ii) The following duty cycle applies for discrete-mode testing:

                                           Table 6 of Sec.   1048.505
----------------------------------------------------------------------------------------------------------------
                                       Time in mode
              RMC modes                  (seconds)    Engine speed  (percent)        Torque  (percent) 1, 2
----------------------------------------------------------------------------------------------------------------
1a Steady-state.....................             290  Engine Governed........  100
1b Transition.......................              20  Engine Governed........  Linear Transition.
2 Steady-state......................             290  Engine Governed........  75
----------------------------------------------------------------------------------------------------------------
\1\ The percent torque is relative to maximum test torque.
\2\ Advance from one mode to the next within a 20-second transition phase. During the transition phase, command
  a linear progression from the torque setting of the current mode to the torque setting of the next mode.

    (c) If we test an engine to confirm that it meets the duty-cycle 
emission standards, we will use the steady-state duty cycles that apply 
for that engine family.
    (d) During idle mode, operate the engine with the following 
parameters:
    (1) Hold the speed within your specifications.
    (2) Set the engine to operate at its minimum fueling rate.
    (3) Keep engine torque under 5 percent of maximum test torque.
    (e) For full-load operating modes, operate the engine at wide-open 
throttle.
    (f) See 40 CFR part 1065 for detailed specifications of tolerances 
and calculations.
    (g) For those cases where transient testing is not necessary, 
perform the steady-state test according to this section after an 
appropriate warm-up period, consistent with 40 CFR part 1065, subpart 
F.

0
250. Section 1048.510 is amended by revising the section heading and 
paragraphs (a) and (c)(1) to read as follows:


Sec.  1048.510  Which duty cycles do I use for transient testing?

    (a) Starting with the 2007 model year, measure emissions by testing 
the engine on a dynamometer with one of the following transient duty 
cycles to determine whether it meets the transient emission standards 
in Sec.  1048.101(a):
    (1) For constant-speed engines and severe-duty engines, use the 
transient duty-cycle described in Appendix I of this part.
    (2) For all other engines, use the transient duty cycle described 
in Appendix II of this part.
* * * * *
    (c) * * *
    (1) Operate the engine for the first 180 seconds of the appropriate 
duty cycle from Appendix I or Appendix II of this part, then allow it 
to idle without load for 30 seconds. At the end of the 30-second idling 
period, start measuring emissions as the engine operates over the 
prescribed duty cycle. For severe-duty engines, this engine warm-up 
procedure may include up to 15 minutes of operation over the 
appropriate duty cycle.
* * * * *

0
251. Section 1048.515 is amended by revising the section heading and 
paragraphs (a)(1) and (a)(2) to read as follows:


Sec.  1048.515  What are the field-testing procedures?

    (a) * * *
    (1) Remove the selected engines for testing in a laboratory. You 
may use an engine dynamometer to simulate normal operation, as 
described in this section.
    (2) Test the selected engines while they remain installed in the 
equipment. In 40 CFR part 1065, subpart J, we

[[Page 40479]]

describe the equipment and sampling methods for testing engines in the 
field. Use fuel meeting the specifications of 40 CFR part 1065, subpart 
H, or a fuel typical of what you would expect the engine to use in 
service.
* * * * *

0
252. Section 1048.601 is revised to read as follows:


Sec.  1048.601  What compliance provisions apply to these engines?

    Engine and equipment manufacturers, as well as owners, operators, 
and rebuilders of engines subject to the requirements of this part, and 
all other persons, must observe the provisions of this part, the 
requirements and prohibitions in 40 CFR part 1068, and the provisions 
of the Act.

0
253. Section 1048.605 is revised to read as follows:


Sec.  1048.605  What provisions apply to engines certified under the 
motor-vehicle program?

    (a) General provisions. If you are an engine manufacturer, this 
section allows you to introduce new nonroad engines into commerce if 
they are already certified to the requirements that apply to engines 
under 40 CFR parts 85 and 86 for the appropriate model year. If you 
comply with all the provisions of this section, we consider the 
certificate issued under 40 CFR part 86 for each engine to also be a 
valid certificate of conformity under this part 1048 for its model 
year, without a separate application for certification under the 
requirements of this part 1048. See Sec.  1048.610 for similar 
provisions that apply to engines certified to chassis-based standards 
for motor vehicles.
    (b) Equipment-manufacturer provisions. If you are not an engine 
manufacturer, you may produce nonroad equipment using motor-vehicle 
engines under this section as long as you meet all the requirements and 
conditions specified in paragraph (d) of this section. If you modify 
the motor-vehicle engine in any of the ways described in paragraph 
(d)(2) of this section, we will consider you a manufacturer of a new 
nonroad engine. Such engine modifications prevent you from using the 
provisions of this section.
    (c) Liability. Engines for which you meet the requirements of this 
section are exempt from all the requirements and prohibitions of this 
part, except for those specified in this section. Engines exempted 
under this section must meet all the applicable requirements from 40 
CFR parts 85 and 86. This applies to engine manufacturers, equipment 
manufacturers who use these engines, and all other persons as if these 
engines were used in a motor vehicle. The prohibited acts of 40 CFR 
1068.101(a)(1) apply to these new engines and equipment; however, we 
consider the certificate issued under 40 CFR part 86 for each engine to 
also be a valid certificate of conformity under this part 1048 for its 
model year. If we make a determination that these engines do not 
conform to the regulations during their useful life, we may require you 
to recall them under 40 CFR part 86 or 40 CFR 1068.505.
    (d) Specific requirements. If you are an engine manufacturer or 
equipment manufacturer and meet all the following criteria and 
requirements regarding your new nonroad engine, the engine is eligible 
for an exemption under this section:
    (1) Your engine must be covered by a valid certificate of 
conformity issued under 40 CFR part 86.
    (2) You must not make any changes to the certified engine that 
could reasonably be expected to increase its exhaust emissions for any 
pollutant, or its evaporative emissions. For example, if you make any 
of the following changes to one of these engines, you do not qualify 
for this exemption:
    (i) Change any fuel system or evaporative system parameters from 
the certified configuration (this does not apply to refueling 
controls).
    (ii) Change, remove, or fail to properly install any other 
component, element of design, or calibration specified in the engine 
manufacturer's application for certification. This includes 
aftertreatment devices and all related components.
    (iii) Modify or design the engine cooling system so that 
temperatures or heat rejection rates are outside the original engine 
manufacturer's specified ranges.
    (3) You must show that fewer than 50 percent of the engine family's 
total sales in the United States are used in nonroad applications. This 
includes engines used in any application without regard to which 
company manufactures the vehicle or equipment. Show this as follows:
    (i) If you are the original manufacturer of the engine, base this 
showing on your sales information.
    (ii) In all other cases, you must get the original manufacturer of 
the engine to confirm this based on its sales information.
    (4) You must ensure that the engine has the label we require under 
40 CFR part 86.
    (5) You must add a permanent supplemental label to the engine in a 
position where it will remain clearly visible after installation in the 
equipment. In the supplemental label, do the following:
    (i) Include the heading: ``NONROAD ENGINE EMISSION CONTROL 
INFORMATION''.
    (ii) Include your full corporate name and trademark. You may 
instead include the full corporate name and trademark of another 
company you choose to designate.
    (iii) State: ``THIS ENGINE WAS ADAPTED FOR NONROAD USE WITHOUT 
AFFECTING ITS EMISSION CONTROLS. THE EMISSION-CONTROL SYSTEM DEPENDS ON 
THE USE OF FUEL MEETING SPECIFICATIONS THAT APPLY FOR MOTOR-VEHICLE 
APPLICATIONS. OPERATING THE ENGINE ON OTHER FUELS MAY BE A VIOLATION OF 
FEDERAL LAW.''.
    (iv) State the date you finished modifying the engine (month and 
year), if applicable.
    (6) The original and supplemental labels must be readily visible 
after the engine is installed in the equipment or, if the equipment 
obscures the engine's emission control information label, the equipment 
manufacturer must attach duplicate labels, as described in 40 CFR 
1068.105.
    (7) Send the Designated Compliance Officer a signed letter by the 
end of each calendar year (or less often if we tell you) with all the 
following information:
    (i) Identify your full corporate name, address, and telephone 
number.
    (ii) List the engine or equipment models you expect to produce 
under this exemption in the coming year.
    (iii) State: ``We produce each listed [engine or equipment] model 
for nonroad application without making any changes that could increase 
its certified emission levels, as described in 40 CFR 1048.605.''.
    (e) Failure to comply. If your engines do not meet the criteria 
listed in paragraph (d) of this section, they will be subject to the 
standards, requirements, and prohibitions of this part 1048 and the 
certificate issued under 40 CFR part 86 will not be deemed to also be a 
certificate issued under this part 1048. Introducing these engines into 
commerce without a valid exemption or certificate of conformity under 
this part violates the prohibitions in 40 CFR 1068.101(a)(1).
    (f) Data submission. We may require you to send us emission test 
data on any applicable nonroad duty cycles.
    (g) Participation in averaging, banking and trading. Engines 
adapted for nonroad use under this section may generate credits under 
the ABT provisions in 40 CFR part 86. These

[[Page 40480]]

engines must use emission credits under 40 CFR part 86 if they are 
certified to an FEL that exceeds an applicable standard under 40 CFR 
part 86.

0
254. Section 1048.610 is revised to read as follows:


Sec.  1048.610  What provisions apply to vehicles certified under the 
motor-vehicle program?

    (a) General provisions. If you are a motor-vehicle manufacturer, 
this section allows you to introduce new nonroad engines or equipment 
into commerce if the vehicle is already certified to the requirements 
that apply under 40 CFR parts 85 and 86 for the appropriate model year. 
If you comply with all of the provisions of this section, we consider 
the certificate issued under 40 CFR part 86 for each motor vehicle to 
also be a valid certificate of conformity for the engine under this 
part 1048 for its model year, without a separate application for 
certification under the requirements of this part 1048. See Sec.  
1048.605 or similar provisions that apply to motor-vehicle engines 
produced for nonroad equipment. The provisions of this section do not 
apply to engines certified to meet the requirements for highway 
motorcycles.
    (b) Equipment-manufacturer provisions. If you are not a motor-
vehicle manufacturer, you may produce nonroad equipment from motor 
vehicles under this section as long as you meet all the requirements 
and conditions specified in paragraph (d) of this section. If you 
modify the motor vehicle or its engine in any of the ways described in 
paragraph (d)(2) of this section, we will consider you a manufacturer 
of a new nonroad engine. Such modifications prevent you from using the 
provisions of this section.
    (c) Liability. Engines, vehicles, and equipment for which you meet 
the requirements of this section are exempt from all the requirements 
and prohibitions of this part, except for those specified in this 
section. Engines exempted under this section must meet all the 
applicable requirements from 40 CFR parts 85 and 86. This applies to 
engine manufacturers, equipment manufacturers, and all other persons as 
if the nonroad equipment were motor vehicles. The prohibited acts of 40 
CFR 1068.101(a)(1) apply to these new pieces of equipment; however, we 
consider the certificate issued under 40 CFR part 86 for each motor 
vehicle to also be a valid certificate of conformity for the engine 
under this part 1048 for its model year. If we make a determination 
that these engines, vehicles, or equipment do not conform to the 
regulations during their useful life, we may require you to recall them 
under 40 CFR part 86 or 40 CFR 1068.505.
    (d) Specific requirements. If you are a motor-vehicle manufacturer 
and meet all the following criteria and requirements regarding your new 
nonroad equipment and its engine, the engine is eligible for an 
exemption under this section:
    (1) Your equipment must be covered by a valid certificate of 
conformity as a motor vehicle issued under 40 CFR part 86.
    (2) You must not make any changes to the certified vehicle that we 
could reasonably expect to increase its exhaust emissions for any 
pollutant, or its evaporative emissions if it is subject to 
evaporative-emission standards. For example, if you make any of the 
following changes, you do not qualify for this exemption:
    (i) Change any fuel system or evaporative system parameters from 
the certified configuration, including refueling emission controls.
    (ii) Change, remove, or fail to properly install any other 
component, element of design, or calibration specified in the vehicle 
manufacturer's application for certification. This includes 
aftertreatment devices and all related components.
    (iii) Modify or design the engine cooling system so that 
temperatures or heat rejection rates are outside the original vehicle 
manufacturer's specified ranges.
    (iv) Add more than 500 pounds to the curb weight of the originally 
certified motor vehicle.
    (3) You must show that fewer than 50 percent of the engine family's 
total sales in the United States are used in nonroad applications. This 
includes any type of vehicle, without regard to which company completes 
the manufacturing of the nonroad equipment. Show this as follows:
    (i) If you are the original manufacturer of the vehicle, base this 
showing on your sales information.
    (ii) In all other cases, you must get the original manufacturer of 
the vehicle to confirm this based on their sales information.
    (4) The equipment must have the vehicle emission control 
information and fuel labels we require under 40 CFR 86.007-35.
    (5) You must add a permanent supplemental label to the equipment in 
a position where it will remain clearly visible. In the supplemental 
label, do the following:
    (i) Include the heading: ``NONROAD ENGINE EMISSION CONTROL 
INFORMATION''.
    (ii) Include your full corporate name and trademark. You may 
instead include the full corporate name and trademark of another 
company you choose to designate.
    (iii) State: ``THIS VEHICLE WAS ADAPTED FOR NONROAD USEWITHOUT 
AFFECTING ITS EMISSION CONTROLS. THEEMISSION-CONTROL SYSTEM DEPENDS ON 
THE USE OF FUELMEETING SPECIFICATIONS THAT APPLY FOR MOTOR-
VEHICLEAPPLICATIONS. OPERATING THE ENGINE ON OTHER FUELSMAY BE A 
VIOLATION OF FEDERAL LAW.''.
    (iv) State the date you finished modifying the vehicle (month and 
year), if applicable.
    (6) The original and supplemental labels must be readily visible in 
the fully assembled equipment.
    (7) Send the Designated Compliance Officer a signed letter by the 
end of each calendar year (or less often if we tell you) with all the 
following information:
    (i) Identify your full corporate name, address, and telephone 
number.
    (ii) List the equipment models you expect to produce under this 
exemption in the coming year.
    (iii) State: ``We produced each listed engine or equipment model 
for nonroad application without making any changes that could increase 
its certified emission levels, as described in 40 CFR 1048.610.''.
    (e) Failure to comply. If your engines, vehicles, or equipment do 
not meet the criteria listed in paragraph (d) of this section, the 
engines will be subject to the standards, requirements, and 
prohibitions of this part 1048, and the certificate issued under 40 CFR 
part 86 will not be deemed to also be a certificate issued under this 
part 1048. Introducing these engines into commerce without a valid 
exemption or certificate of conformity under this part violates the 
prohibitions in 40 CFR 1068.101(a)(1).
    (f) Data submission. We may require you to send us emission test 
data on any applicable nonroad duty cycles.
    (g) Participation in averaging, banking and trading. Vehicles 
adapted for nonroad use under this section may generate credits under 
the ABT provisions in 40 CFR part 86. These vehicles must use emission 
credits under 40 CFR part 86 if they are certified to an FEL that 
exceeds an applicable standard under 40 CFR part 86.

0
255. Section 1048.615 is amended by revising paragraphs (a)(2), (a)(3), 
(c), and (d) to read as follows:

[[Page 40481]]

Sec.  1048.615  What are the provisions for exempting engines designed 
for lawn and garden applications?

* * * * *
    (a) * * *
    (2) The engine must have a maximum engine power at or below 30 kW.
    (3) The engine must be in an engine family that has a valid 
certificate of conformity showing that it meets emission standards for 
Class II engines under 40 CFR part 90 for the appropriate model year.
* * * * *
    (c) If your engines do not meet the criteria listed in paragraph 
(a) of this section, they will be subject to the provisions of this 
part. Introducing these engines into commerce without a valid exemption 
or certificate of conformity violates the prohibitions in 40 CFR 
1068.101.
    (d) Engines exempted under this section are subject to all the 
requirements affecting engines under 40 CFR part 90. The requirements 
and restrictions of 40 CFR part 90 apply to anyone manufacturing these 
engines, anyone manufacturing equipment that uses these engines, and 
all other persons in the same manner as if these engines had a total 
maximum engine power at or below 19 kW.

0
256. Section 1048.620 is revised to read as follows:


Sec.  1048.620  What are the provisions for exempting large engines 
fueled by natural gas?

    (a) If an engine meets all the following criteria, it is exempt 
from the requirements of this part:
    (1) The engine must operate solely on natural gas or liquefied 
petroleum gas.
    (2) The engine must have maximum engine power at or above 250 kW.
    (3) The engine must be in an engine family that has a valid 
certificate of conformity showing that it meets emission standards for 
engines of that power rating under 40 CFR part 89 or 1039.
    (b) The only requirements or prohibitions from this part that apply 
to an engine that is exempt under this section are in this section.
    (c) If your engines do not meet the criteria listed in paragraph 
(a) of this section, they will be subject to the provisions of this 
part. Introducing these engines into commerce without a valid exemption 
or certificate of conformity violates the prohibitions in 40 CFR 
1068.101.
    (d) Engines exempted under this section are subject to all the 
requirements affecting engines under 40 CFR part 89 or 1039. The 
requirements and restrictions of 40 CFR part 89 or 1039 apply to anyone 
manufacturing these engines, anyone manufacturing equipment that uses 
these engines, and all other persons in the same manner as if these 
were nonroad diesel engines.
    (e) You may request an exemption under this section by submitting 
an application for certification for the engines under 40 CFR part 89 
or 1039.

0
257. Section 1048.625 is revised to read as follows:


Sec.  1048.625  What special provisions apply to engines using 
noncommercial fuels?

    In Sec.  1048.115(e), we generally require that engines meet 
emission standards for any adjustment within the full range of any 
adjustable parameters. For engines that use noncommercial fuels 
significantly different than the specified test fuel of the same type, 
you may ask to use the parameter-adjustment provisions of this section 
instead of those in Sec.  1048.115(e). Engines certified under this 
section must be in a separate engine family.
    (a) If we approve your request, the following provisions apply:
    (1) You must certify the engine using the test fuel specified in 
Sec.  1048.501.
    (2) You may produce the engine without limits or stops that keep 
the engine adjusted within the certified range.
    (3) You must specify in-use adjustments different than the 
adjustable settings appropriate for the specified test fuel, consistent 
with the provisions of paragraph(b)(1) of this section.
    (b) To produce engines under this section, you must do the 
following:
    (1) Specify in-use adjustments needed so the engine's level of 
emission control for each regulated pollutant is equivalent to that 
from the certified configuration.
    (2) Add the following information to the emission control 
information label specified in Sec.  1048.135:
    (i) Include instructions describing how to adjust the engine to 
operate in a way that maintains the effectiveness of the emission-
control system.
    (ii) State: ``THIS ENGINE IS CERTIFIED TO OPERATE IN APPLICATIONS 
USING NONCOMMERCIAL FUEL. MALADJUSTMENT OF THE ENGINE IS A VIOLATION 
OFFEDERAL LAW SUBJECT TO CIVIL PENALTY.''.
    (3) Keep records to document the destinations and quantities of 
engines produced under this section.

0
258. A new Sec.  1048.630 is added to subpart G to read as follows:


Sec.  1048.630  What are the provisions for exempting engines used 
solely for competition?

    The provisions of this section apply for new engines built on or 
after January 1, 2006.
    (a) Equipment manufacturers may use uncertified engines if the 
vehicles or equipment in which they are installed will be used solely 
for competition.
    (b) The definition of nonroad engine in 40 CFR 1068.30 excludes 
engines used solely for competition. These engines are not required to 
comply with this part 1048, but 40 CFR 1068.101 prohibits the use of 
competition engines for noncompetition purposes.
    (c) We consider a vehicle or piece of equipment to be one that will 
be used solely for competition if it has features that are not easily 
removed that would make its use other than in competition unsafe, 
impractical, or highly unlikely.
    (d) As an engine manufacturer, your engine is exempt without our 
prior approval if you have a written request for an exempted engine 
from the equipment manufacturer showing the basis for believing that 
the equipment will be used solely for competition. You must permanently 
label engines exempted under this section to clearly indicate that they 
are to be used solely for competition. Failure to properly label an 
engine will void the exemption.
    (e) We may discontinue an exemption under this section if we find 
that engines are not used solely for competition.

0
259. A new Sec.  1048.635 is added to subpart G to read as follows:


Sec.  1048.635  What special provisions apply to branded engines?

    The following provisions apply if you identify the name and 
trademark of another company instead of your own on your emission 
control information label, as provided by Sec.  1048.135(c)(2):
    (a) You must have a contractual agreement with the other company 
that obligates that company to take the following steps:
    (1) Meet the emission warranty requirements that apply under Sec.  
1048.120. This may involve a separate agreement involving reimbursement 
of warranty-related expenses.
    (2) Report all warranty-related information to the certificate 
holder.
    (b) In your application for certification, identify the company 
whose trademark you will use and describe the arrangements you have 
made to meet your requirements under this section.
    (c) You remain responsible for meeting all the requirements of this 
chapter, including warranty and defect-reporting provisions.

[[Page 40482]]


0
260. Section 1048.801 is revised to read as follows:


Sec.  1048.801  What definitions apply to this part?

    The following definitions apply to this part. The definitions apply 
to all subparts unless we note otherwise. All undefined terms have the 
meaning the Act gives to them. The definitions follow:
    Act means the Clean Air Act, as amended, 42 U.S.C. 7401-7671q.
    Adjustable parameter means any device, system, or element of design 
that someone can adjust (including those which are difficult to access) 
and that, if adjusted, may affect emissions or engine performance 
during emission testing or normal in-use operation. This includes, but 
is not limited to, parameters related to injection timing and fueling 
rate. You may ask us to exclude a parameter that is difficult to access 
if it cannot be adjusted to affect emissions without significantly 
degrading engine performance, or if you otherwise show us that it will 
not be adjusted in a way that affects emissions during in-use 
operation.
    Aftertreatment means relating to a catalytic converter, particulate 
filter, or any other system, component, or technology mounted 
downstream of the exhaust valve (or exhaust port) whose design function 
is to decrease emissions in the engine exhaust before it is exhausted 
to the environment. Exhaust-gas recirculation (EGR) and turbochargers 
are not aftertreatment.
    Aircraft means any vehicle capable of sustained air travel above 
treetop heights.
    All-terrain vehicle has the meaning given in 40 CFR 1051.801.
    Amphibious vehicle means a vehicle with wheels or tracks that is 
designed primarily for operation on land and secondarily for operation 
in water.
    Auxiliary emission-control device means any element of design that 
senses temperature, motive speed, engine rpm, transmission gear, or any 
other parameter for the purpose of activating, modulating, delaying, or 
deactivating the operation of any part of the emission-control system.
    Blue Sky Series engine means an engine meeting the requirements of 
Sec.  1048.140.
    Brake power means the usable power output of the engine, not 
including power required to fuel, lubricate, or heat the engine, 
circulate coolant to the engine, or to operate aftertreatment devices.
    Calibration means the set of specifications and tolerances specific 
to a particular design, version, or application of a component or 
assembly capable of functionally describing its operation over its 
working range.
    Certification means relating to the process of obtaining a 
certificate of conformity for an engine family that complies with the 
emission standards and requirements in this part.
    Certified emission level means the highest deteriorated emission 
level in an engine family for a given pollutant from either transient 
or steady-state testing.
    Compression-ignition means relating to a type of reciprocating, 
internal-combustion engine that is not a spark-ignition engine.
    Constant-speed engine means an engine whose certification is 
limited to constant-speed operation. Engines whose constant-speed 
governor function is removed or disabled are no longer constant-speed 
engines.
    Constant-speed operation means engine operation with a governor 
that controls the operator input to maintain an engine at a reference 
speed, even under changing load. For example, an isochronous governor 
changes reference speed temporarily during a load change, then returns 
the engine to its original reference speed after the engine stabilizes. 
Isochronous governors typically allow speed changes up to 1.0 %. 
Another example is a speed-droop governor, which has a fixed reference 
speed at zero load and allows the reference speed to decrease as load 
increases. With speed-droop governors, speed typically decreases (3 to 
10) % below the reference speed at zero load, such that the minimum 
reference speed occurs near the engine's point of maximum power.
    Crankcase emissions means airborne substances emitted to the 
atmosphere from any part of the engine crankcase's ventilation or 
lubrication systems. The crankcase is the housing for the crankshaft 
and other related internal parts.
    Critical emission-related component means any of the following 
components:
    (1) Electronic control units, aftertreatment devices, fuel-metering 
components, EGR-system components, crankcase-ventilation valves, all 
components related to charge-air compression and cooling, and all 
sensors and actuators associated with any of these components.
    (2) Any other component whose primary purpose is to reduce 
emissions.
    Designated Compliance Officer means the Manager, Engine Programs 
Group (6405-J), U.S. Environmental Protection Agency, 1200 Pennsylvania 
Ave., NW., Washington, DC 20460.
    Designated Enforcement Officer means the Director, Air Enforcement 
Division (2242A), U.S. Environmental Protection Agency, 1200 
Pennsylvania Ave., NW., Washington, DC 20460.
    Deteriorated emission level means the emission level that results 
from applying the appropriate deterioration factor to the official 
emission result of the emission-data engine.
    Deterioration factor means the relationship between emissions at 
the end of useful life and emissions at the low-hour test point, 
expressed in one of the following ways:
    (1) For multiplicative deterioration factors, the ratio of 
emissions at the end of useful life to emissions at the low-hour test 
point.
    (2) For additive deterioration factors, the difference between 
emissions at the end of useful life and emissions at the low-hour test 
point.
    Discrete-mode means relating to the discrete-mode type of steady-
state test described in Sec.  1048.505.
    Emission-control system means any device, system, or element of 
design that controls or reduces the regulated emissions from an engine.
    Emission-data engine means an engine that is tested for 
certification. This includes engines tested to establish deterioration 
factors.
    Emission-related maintenance means maintenance that substantially 
affects emissions or is likely to substantially affect emission 
deterioration.
    Engine configuration means a unique combination of engine hardware 
and calibration within an engine family. Engines within a single engine 
configuration differ only with respect to normal production 
variability.
    Engine family has the meaning given in Sec.  1048.230.
    Engine manufacturer means the manufacturer of the engine. See the 
definition of ``manufacturer'' in this section.
    Equipment manufacturer means a manufacturer of nonroad equipment. 
All nonroad equipment manufacturing entities under the control of the 
same person are considered to be a single nonroad equipment 
manufacturer.
    Excluded means relating to an engine that either:
    (1) Has been determined not to be a nonroad engine, as specified in 
40 CFR 1068.30; or
    (2) Is a nonroad engine that, according to Sec.  1048.5, is not 
subject to this part 1048.
    Exempted has the meaning given in 40 CFR 1068.30.
    Exhaust-gas recirculation means a technology that reduces emissions 
by routing exhaust gases that had been exhausted from the combustion 
chamber(s) back into the engine to be

[[Page 40483]]

mixed with incoming air before or during combustion. The use of valve 
timing to increase the amount of residual exhaust gas in the combustion 
chamber(s) that is mixed with incoming air before or during combustion 
is not considered exhaust-gas recirculation for the purposes of this 
part.
    Fuel system means all components involved in transporting, 
metering, and mixing the fuel from the fuel tank to the combustion 
chamber(s), including the fuel tank, fuel tank cap, fuel pump, fuel 
filters, fuel lines, carburetor or fuel-injection components, and all 
fuel-system vents.
    Fuel type means a general category of fuels such as gasoline or 
natural gas. There can be multiple grades within a single fuel type, 
such as winter-grade and summer-grade gasoline.
    Good engineering judgment has the meaning given in 40 CFR 1068.30. 
See 40 CFR 1068.5 for the administrative process we use to evaluate 
good engineering judgment.
    High-cost warranted part means a component covered by the emission-
related warranty with a replacement cost (at the time of certification) 
exceeding $400 (in 1998 dollars). Adjust this value using the most 
recent annual average consumer price index information published by the 
U.S. Bureau of Labor Statistics. For this definition, replacement cost 
includes the retail cost of the part plus labor and standard diagnosis.
    High-load engine means an engine for which the engine manufacturer 
can provide clear evidence that operation below 75 percent of maximum 
load in its final application will be rare.
    Hydrocarbon (HC) means the hydrocarbon group on which the emission 
standards are based for each fuel type, as described in Sec.  
1048.101(e).
    Identification number means a unique specification (for example, a 
model number/serial number combination) that allows someone to 
distinguish a particular engine from other similar engines.
    Intermediate test speed has the meaning given in 40 CFR 1065.1001.
    Low-hour means relating to an engine with stabilized emissions and 
represents the undeteriorated emission level. This would generally 
involve less than 300 hours of operation.
    Manufacturer has the meaning given in section 216(1) of the Act. In 
general, this term includes any person who manufactures an engine, 
vehicle, or piece of equipment for sale in the United States or 
otherwise introduces a new nonroad engine into commerce in the United 
States. This includes importers who import engines, equipment, or 
vehicles for resale.
    Marine engine means a nonroad engine that is installed or intended 
to be installed on a marine vessel. This includes a portable auxiliary 
engine only if its fueling, cooling, or exhaust system is an integral 
part of the vessel. There are two kinds of marine engines:
    (1) Propulsion marine engine means a marine engine that moves a 
vessel through the water or directs the vessel's movement.
    (2) Auxiliary marine engine means a marine engine not used for 
propulsion.
    Marine vessel has the meaning given in 1 U.S.C. 3, except that it 
does not include amphibious vehicles. The definition in 1 U.S.C. 3 very 
broadly includes every craft capable of being used as a means of 
transportation on water.
    Maximum engine power has one of the following meanings:
    (1) For engines at or below 30 kW, maximum engine power has the 
meaning given in 40CFR 90.3.
    (2) For engines above 30 kW, maximum engine power has the meaning 
given in 40 CFR 1039.140
    Maximum test speed has one of the following meanings:
    (1) For variable-speed engines, maximum test speed has the meaning 
given in 40 CFR 1065.1001.
    (2) For transient testing of constant-speed engines, maximum test 
speed means the highest speed at which the engine produces zero torque.
    (3) For steady-state testing of constant-speed engines, maximum 
test speed means the speed at which the engine produces peak torque.
    Maximum test torque has the meaning given in 40 CFR 1065.1001.
    Model year means one of the following things:
    (1) For freshly manufactured equipment and engines (see definition 
of ``new nonroad engine,'' paragraph (1)), model year means one of the 
following:
    (i) Calendar year.
    (ii) Your annual new model production period if it is different 
than the calendar year. This must include January 1 of the calendar 
year for which the model year is named. It may not begin before January 
2 of the previous calendar year and it must end by December 31 of the 
named calendar year.
    (2) For an engine that is converted to a nonroad engine after being 
placed into service as a motor-vehicle engine or a stationary engine, 
model year means the calendar year in which the engine was originally 
produced (see definition of ``new nonroad engine,'' paragraph(2)).
    (3) For a nonroad engine excluded under Sec.  1048.5 that is later 
converted to operate in an application that is not excluded, model year 
means the calendar year in which the engine was originally produced 
(see definition of ``new nonroad engine,'' paragraph (3)).
    (4) For engines that are not freshly manufactured but are installed 
in new nonroad equipment, model year means the calendar year in which 
the engine is installed in the new nonroad equipment (see definition of 
``new nonroad engine,'' paragraph (4)).
    (5) For imported engines:
    (i) For imported engines described in paragraph (5)(i) of the 
definition of ``new nonroad engine,'' model year has the meaning given 
in paragraphs (1) through (4) of this definition.
    (ii) [Reserved]
    Motor vehicle has the meaning given in 40 CFR 85.1703(a).
    New nonroad engine means any of the following things:
    (1) A freshly manufactured nonroad engine for which the ultimate 
purchaser has never received the equitable or legal title. This kind of 
engine might commonly be thought of as ``brand new.'' In the case of 
this paragraph (1), the engine becomes new when it is fully assembled 
for the first time. The engine is no longer new when the ultimate 
purchaser receives the title or the product is placed into service, 
whichever comes first.
    (2) An engine originally manufactured as a motor-vehicle engine or 
a stationary engine that is later intended to be used in a piece of 
nonroad equipment. In this case, the engine is no longer a motor-
vehicle or stationary engine and becomes a ``new nonroad engine''. The 
engine is no longer new when it is placed into nonroad service.
    (3) A nonroad engine that has been previously placed into service 
in an application we exclude under Sec.  1048.5, where that engine is 
installed in a piece of equipment that is covered by this part 1048. 
The engine is no longer new when it is placed into nonroad service 
covered by this part 1048. For example, this would apply to a marine-
propulsion engine that is no longer used in a marine vessel.
    (4) An engine not covered by paragraphs (1) through (3) of this 
definition that is intended to be installed in new nonroad equipment. 
The engine is no longer new when the ultimate purchaser receives a 
title for the equipment or the product is placed into service, 
whichever comes first. This generally includes installation of used 
engines in new equipment.
    (5) An imported nonroad engine, subject to the following 
provisions:

[[Page 40484]]

    (i) An imported nonroad engine covered by a certificate of 
conformity issued under this part that meets the criteria of one or 
more of paragraphs (1) through (4) of this definition, where the 
original engine manufacturer holds the certificate, is new as defined 
by those applicable paragraphs.
    (ii) An imported nonroad engine covered by a certificate of 
conformity issued under this part, where someone other than the 
original engine manufacturer holds the certificate (such as when the 
engine is modified after its initial assembly), becomes new when it is 
imported. It is no longer new when the ultimate purchaser receives a 
title for the engine or it is placed into service, whichever comes 
first.
    (iii) An imported nonroad engine that is not covered by a 
certificate of conformity issued under this part at the time of 
importation is new, but only if it was produced on or after January 1, 
2004. This addresses uncertified engines and equipment initially placed 
into service that someone seeks to import into the United States. 
Importation of this kind of new nonroad engine (or equipment containing 
such an engine) is generally prohibited by 40 CFR part 1068.
    New nonroad equipment means either of the following things:
    (1) A nonroad piece of equipment for which the ultimate purchaser 
has never received the equitable or legal title. The product is no 
longer new when the ultimate purchaser receives this title or the 
product is placed into service, whichever comes first.
    (2) An imported nonroad piece of equipment with an engine not 
covered by a certificate of conformity issued under this part at the 
time of importation and manufactured afterJanuary 1, 2004.
    Noncommercial fuel means a combustible product that is not marketed 
as a commercial fuel, but is used as a fuel for nonroad engines. For 
example, this includes methane that is produced and released from 
landfills or oil wells, or similar unprocessed fuels that are not 
intended to meet any otherwise applicable fuel specifications. SeeSec.  
1048.615 for provisions related to engines designed to burn 
noncommercial fuels.
    Noncompliant engine means an engine that was originally covered by 
a certificate of conformity, but is not in the certified configuration 
or otherwise does not comply with the conditions of the certificate.
    Nonconforming engine means an engine not covered by a certificate 
of conformity that would otherwise be subject to emission standards.
    Nonmethane hydrocarbon means the difference between the emitted 
mass of total hydrocarbons and the emitted mass of methane.
    Nonroad means relating to nonroad engines or equipment that 
includes nonroad engines.
    Nonroad engine has the meaning given in 40 CFR 1068.30. In general 
this means all internal-combustion engines except motor vehicle 
engines, stationary engines, engines used solely for competition, or 
engines used in aircraft. This part does not apply to all nonroad 
engines (see Sec.  1048.5).
    Nonroad equipment means a piece of equipment that is powered by one 
or more nonroad engines.
    Off-highway motorcycle has the meaning given in 40 CFR 1051.801. 
(Note: highway motorcycles are regulated under 40 CFR part 86.)
    Official emission result means the measured emission rate for an 
emission-data engine on a given duty cycle before the application of 
any deterioration factor, but after the applicability of regeneration 
adjustment factors.
    Owners manual means a document or collection of documents prepared 
by the engine manufacturer for the owner or operator to describe 
appropriate engine maintenance, applicable warranties, and any other 
information related to operating or keeping the engine. The owners 
manual is typically provided to the ultimate purchaser at the time of 
sale.
    Oxides of nitrogen has the meaning given in 40 CFR part 1065.
    Piece of equipment means any vehicle, vessel, or other type of 
equipment using engines to which this part applies.
    Placed into service means put into initial use for its intended 
purpose.
    Point of first retail sale means the location at which the initial 
retail sale occurs. This generally means an equipment dealership, but 
may also include an engine seller or distributor in cases where loose 
engines are sold to the general public for uses such as replacement 
engines.
    Ramped-modal means relating to the ramped-modal type of steady-
state test described in Sec.  1048.505.
    Rated speed means the maximum full-load governed speed for governed 
engines and the speed of maximum power for ungoverned engines.
    Revoke has the meaning given in 40 CFR 1068.30.
    Round has the meaning given in 40 CFR 1065.1001, unless otherwise 
specified.
    Scheduled maintenance means adjusting, repairing, removing, 
disassembling, cleaning, or replacing components or systems 
periodically to keep a part or system from failing, malfunctioning, or 
wearing prematurely. It also may mean actions you expect are necessary 
to correct an overt indication of failure or malfunction for which 
periodic maintenance is not appropriate.
    Severe-duty application includes concrete saws, concrete pumps, and 
any other application where an engine manufacturer can provide clear 
evidence that the majority of installations need air-cooled engines as 
a result of operation in a severe-duty environment.
    Severe-duty engine means an engine from an engine family in which 
the majority of engines are installed in severe-duty applications.
    Small-volume engine manufacturer means a company with fewer than 
200 employees. This includes any employees working for parent or 
subsidiary companies.
    Snowmobile has the meaning given in 40 CFR 1051.801.
    Spark-ignition means relating to a gasoline-fueled engine or any 
other type of engine with a spark plug (or other sparking device) and 
with operating characteristics significantly similar to the theoretical 
Otto combustion cycle. Spark-ignition engines usually use a throttle to 
regulate intake air flow to control power during normal operation.
    Steady-state means relating to emission tests in which engine speed 
and load are held at a finite set of essentially constant values. 
Steady-state tests are either discrete-mode tests or ramped-modal 
tests.
    Stoichiometric means relating to the particular ratio of air and 
fuel such that if the fuel were fully oxidized, there would be no 
remaining fuel or oxygen. For example, stoichiometric combustion in a 
gasoline-fueled engine typically occurs at an air-fuel mass ratio of 
about 14.7.
    Suspend has the meaning given in 40 CFR 1068.30.
    Test engine means an engine in a test sample.
    Test sample means the collection of engines selected from the 
population of an engine family for emission testing. This may include 
testing for certification, production-line testing, or in-use testing.
    Tier 1 means relating to the emission standards and other 
requirements that apply beginning with the 2004 model year.
    Tier 2 means relating to the emission standards and other 
requirements that apply beginning with the 2007 model year.

[[Page 40485]]

    Total hydrocarbon means the combined mass of organic compounds 
measured by the specified procedure for measuring total hydrocarbon, 
expressed as a hydrocarbon with a hydrogen-to-carbon mass ratio of 
1.85:1.
    Total hydrocarbon equivalent means the sum of the carbon mass 
contributions of non-oxygenated hydrocarbons, alcohols and aldehydes, 
or other organic compounds that are measured separately as contained in 
a gas sample, expressed as exhaust hydrocarbon from petroleum-fueled 
engines. The hydrogen-to-carbon ratio of the equivalent hydrocarbon is 
1.85:1.
    Ultimate purchaser means, with respect to any new nonroad equipment 
or new nonroad engine, the first person who in good faith purchases 
such new nonroad equipment or new nonroad engine for purposes other 
than resale.
    United States has the meaning given in 40 CFR 1068.30.
    Upcoming model year means for an engine family the model year after 
the one currently in production.
    U.S.-directed production volume means the number of engine units, 
subject to the requirements of this part, produced by a manufacturer 
for which the manufacturer has a reasonable assurance that sale was or 
will be made to ultimate purchasers in the UnitedStates.
    Useful life means the period during which the engine is designed to 
properly function in terms of reliability and fuel consumption, without 
being remanufactured, specified as a number of hours of operation or 
calendar years, whichever comes first. It is the period during which a 
new nonroad engine is required to comply with all applicable emission 
standards. See Sec.  1048.101(g).
    Variable-speed engine means an engine that is not a constant-speed 
engine.
    Variable-speed operation means engine operation that does not meet 
the definition of constant-speed operation.
    Void has the meaning given in 40 CFR 1068.30.
    Volatile liquid fuel means any fuel other than diesel or biodiesel 
that is a liquid at atmospheric pressure and has a Reid Vapor Pressure 
higher than 2.0 pounds per square inch.
    Wide-open throttle means maximum throttle opening. Unless this is 
specified at a given speed, it refers to maximum throttle opening at 
maximum speed. For electronically controlled or other engines with 
multiple possible fueling rates, wide-open throttle also means the 
maximum fueling rate at maximum throttle opening under test conditions.
    We (us, our) means the Administrator of the Environmental 
Protection Agency and any authorized representatives.

0
261. Section 1048.805 is amended by adding ``NARA'' to the table in 
alphabetical order to read as follows:


Sec.  1048.805  What symbols, acronyms, and abbreviations does this 
part use?

* * * * *


                              * * * * * * *
NARA..............................  National Archives and Records
                                     Administration.

                              * * * * * * *



0
262. Section 1048.810 is revised to read as follows:


Sec.  1048.810  What materials does this part reference?

    Documents listed in this section have been incorporated by 
reference into this part. The Director of the Federal Register approved 
the incorporation by reference as prescribed in 5 U.S.C. 552(a) and 1 
CFR part 51. Anyone may inspect copies at the U.S. EPA, Air and 
Radiation Docket and Information Center, 1301 Constitution Ave., NW., 
Room B102, EPA West Building, Washington, DC 20460 or at the National 
Archives and Records Administration (NARA). For information on the 
availability of this material at NARA, call 202-741-6030, or go to: 
http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html
.

    (a) [Reserved]
    (b) SAE material. Table 2 of this section lists material from the 
Society of AutomotiveEngineering that we have incorporated by 
reference. The first column lists the number and name of the material. 
The second column lists the sections of this part where we reference 
it. Anyone may purchase copies of these materials from the Society of 
Automotive Engineers, 400 Commonwealth Drive, Warrendale, PA 15096 or 
http://www.sae.org. Table 2 follows:


               Table 2 of Sec.   1048.810.--SAE Materials
------------------------------------------------------------------------
                                                             Part 1048
                Document number and name                     reference
------------------------------------------------------------------------
SAE J1930, Electrical/Electronic Systems Diagnostic             1048.135
 Terms, Definitions, Abbreviations, and Acronyms,
 revised May 1998.......................................
SAE J2260, Nonmetallic Fuel System Tubing with One or           1048.105
 More Layers, November 1996.............................
------------------------------------------------------------------------

    (c) ISO material. Table 3 of this section lists material from the 
International Organization for Standardization that we have 
incorporated by reference. The first column lists the number and name 
of the material. The second column lists the section of this part where 
we reference it. Anyone may purchase copies of these materials from the 
International Organization for Standardization, Case Postale 56, CH-
1211 Geneva 20,Switzerland or http://www.iso.org. Table 3 follows:


[[Page 40486]]



               Table 3 of Sec.   1048.810.--ISO Materials
------------------------------------------------------------------------
                                                             Part 1048
                Document number and name                     reference
------------------------------------------------------------------------
ISO 9141-2 Road vehicles--Diagnostic systems--Part 2:           1048.110
 CARB requirements for interchange of digital
 information, February 1994.............................
ISO 14230-4 Road vehicles--Diagnostic systems--Keyword          1048.110
 Protocol 2000--Part 4: Requirements for emission-
 related systems, June 2000.............................
------------------------------------------------------------------------


0
263. Section 1048.815 is revised to read as follows:


Sec.  1048.815  What provisions apply to confidential information?

    (a) Clearly show what you consider confidential by marking, 
circling, bracketing, stamping, or some other method.
    (b) We will store your confidential information as described in 40 
CFR part 2. Also, we will disclose it only as specified in 40 CFR part 
2. This applies both to any information you send us and to any 
information we collect from inspections, audits, or other site visits.
    (c) If you send us a second copy without the confidential 
information, we will assume it contains nothing confidential whenever 
we need to release information from it.
    (d) If you send us information without claiming it is confidential, 
we may make it available to the public without further notice to you, 
as described in 40 CFR 2.204.

0
264. Section 1048.820 is revised to read as follows:


Sec.  1048.820  How do I request a hearing?

    (a) You may request a hearing under certain circumstances, as 
described elsewhere in this part. To do this, you must file a written 
request, including a description of your objection and any supporting 
data, within 30 days after we make a decision.
    (b) For a hearing you request under the provisions of this part, we 
will approve your request if we find that your request raises a 
substantial factual issue.
    (c) If we agree to hold a hearing, we will use the procedures 
specified in 40 CFR part 1068, subpart G.

0
265. Appendix I to part 1048 is amended in the table by adding a 
footnote to read as follows:

Appendix I to Part 1048--Large Spark-ignition (SI) Transient Cycle for 
Constant-Speed Engines

* * * * *

------------------------------------------------------------------------
                                                          Normalized
             Time(s)               Normalized speed        torque\1\
------------------------------------------------------------------------

                                * * * * *
------------------------------------------------------------------------
\1\ The percent torque is relative to maximum torque at the commanded
  engine speed.

PART 1051--CONTROL OF EMISSIONS FROM RECREATIONAL ENGINES AND 
VEHICLES

0
266. The authority citation for part 1051 is revised to read as 
follows:

    Authority: 42 U.S.C. 7401--7671q.

0
267. The heading for subpart A is revised to read as follows:

Subpart A--Overview and Applicability

0
268. Section 1051.1 is revised to read as follows:


Sec.  1051.1  Does this part apply for my vehicles or engines?

    (a) The regulations in this part 1051 apply for all the following 
new recreational vehicles or new engines used in the following 
recreational vehicles, except as provided in Sec.  1051.5:
    (1) Snowmobiles.
    (2) Off-highway motorcycles.
    (3) All-terrain vehicles (ATVs.)
    (4) Offroad utility vehicles with engines with displacement less 
than or equal to 1000 cc, maximum engine power less than or equal to 30 
kW, and maximum vehicle speed of 25 miles per hour or higher. Offroad 
utility vehicles that are subject to this part are subject to the same 
requirements as ATVs. This means that any requirement that applies to 
ATVs also applies to these offroad utility vehicles, without regard to 
whether the regulatory language mentions offroad utility vehicles.
    (b) In certain cases, the regulations in this part 1051 apply to 
new engines under 50 cc used in motorcycles that are motor vehicles. 
See 40 CFR 86.447-2006 or 86.448-2006 for provisions related to this 
allowance.
    (c) This part 1051 applies for new recreational vehicles starting 
in the 2006 model year, except as described in subpart B of this part. 
You need not follow this part for vehicles you produce before the 2006 
model year, unless you certify voluntarily. See Sec. Sec.  1051.103 
through 1051.110, Sec.  1051.145, and the definition of ``model year'' 
in Sec.  1051.801 for moreinformation about the timing of the 
requirements.
    (d) The requirements of this part begin to apply when a vehicle is 
new. See the definition of ``new'' in Sec.  1051.801 for more 
information. In some cases, vehicles or engines that have been 
previously used may be considered ``new'' for the purposes of this 
part.
    (e) The evaporative emission requirements of this part apply to 
highway motorcycles, as specified in 40 CFR part 86, subpart E.

0
269. Section 1051.5 is revised to read as follows:


Sec.  1051.5  Which engines are excluded from this part's requirements?

    (a) You may exclude vehicles with compression-ignition engines. See 
40 CFR part 89 or 1039 for regulations that cover these engines.
    (b) We may require you to label an engine or vehicle (or both) if 
this section excludes it and other requirements in this chapter do not 
apply.

0
270. Section 1051.10 is revised to read as follows:


Sec.  1051.10  How is this part organized?

    The regulations in this part 1051 contain provisions that affect 
both vehicle manufacturers and others. However, the requirements of 
this part are generally addressed to the vehicle manufacturer. The term 
``you'' generally means the vehicle manufacturer, as defined in Sec.  
1051.801. This part 1051 is divided into the following subparts:
    (a) Subpart A of this part defines the applicability of part 1051 
and gives an overview of regulatory requirements.
    (b) Subpart B of this part describes the emission standards and 
other requirements that must be met to certify engines under this part. 
Note that Sec.  1051.145 discusses certaininterim requirements and 
compliance provisions that apply only for a limited time.
    (c) Subpart C of this part describes how to apply for a certificate 
of conformity.
    (d) Subpart D of this part describes general provisions for testing 
production-line engines.
    (e) [Reserved]

[[Page 40487]]

    (f) Subpart F of this part describes how to test your engines 
(including references to other parts of the Code of Federal 
Regulations).
    (g) Subpart G of this part and 40 CFR part 1068 describe 
requirements, prohibitions, and other provisions that apply to engine 
manufacturers, equipment manufacturers, owners, operators, rebuilders, 
and all others.
    (h) Subpart H of this part describes how you may generate and use 
emission credits to certify your engines.
    (i) Subpart I of this part contains definitions and other reference 
information.

0
271. Section 1051.15 is revised to read as follows:


Sec.  1051.15  Do any other regulation parts apply to me?

    (a) Parts 86 and 1065 of this chapter describe procedures and 
equipment specifications for testing vehicles and engines. Subpart F of 
this part 1051 describes how to apply the provisions of parts 86 and 
1065 of this chapter to determine whether vehicles meet the emission 
standards in this part.
    (b) The requirements and prohibitions of part 1068 of this chapter 
apply to everyone,including anyone who manufactures, imports, installs, 
owns, operates, or rebuilds any of the vehicles subject to this part 
1051, or vehicles containing these engines. Part 1068 of this chapter 
describes general provisions, including these seven areas:
    (1) Prohibited acts and penalties for manufacturers and others.
    (2) Rebuilding and other aftermarket changes.
    (3) Exclusions and exemptions for certain vehicles and engines.
    (4) Importing vehicles and engines.
    (5) Selective enforcement audits of your production.
    (6) Defect reporting and recall.
    (7) Procedures for hearings.
    (c) Other parts of this chapter apply if referenced in this part.

0
272. Section 1051.101 is amended by revising paragraphs (a)(1), (a)(2), 
(c), and (f) to read as follows:


Sec.  1051.101  What emission standards and other requirements must my 
vehicles meet?

    (a) * * *
    (1) The applicable exhaust emission standards in Sec.  1051.103, 
Sec.  1051.105, Sec.  1051.107, or Sec.  1051.145.
    (i) For snowmobiles, see Sec.  1051.103.
    (ii) For off-highway motorcycles, see Sec.  1051.105.
    (iii) For all-terrain vehicles and offroad utility vehicles subject 
to this part, see Sec.  1051.107 and Sec.  1051.145.
    (2) The evaporative emission standards in Sec.  1051.110.
* * * * *
    (c) These standards and requirements apply to all testing, 
including certification, production-line, and in-use testing.
* * * * *
    (f) As described in Sec.  1051.1(a)(4), offroad utility vehicles 
that are subject to this part are subject to the same requirements as 
ATVs.

0
273. Section 1051.103 is amended by revising paragraph (a)(1) before 
the table and paragraphs (b) introductory text and (c) introductory 
text to read as follows:


Sec.  1051.103  What are the exhaust emission standards for 
snowmobiles?

    (a) * * *
    (1) Follow Table 1 of this section for exhaust emission standards. 
You may generate or use emission credits under the averaging, banking, 
and trading (ABT) program for HC+NOX and CO emissions, as 
described in subpart H of this part. This requires that you specify a 
family emission limit for each pollutant you include in the ABT program 
for each engine family. These family emission limits serve as the 
emission standards for the engine family with respect to all required 
testing instead of the standards specified in this section. An engine 
family meets emission standards evenif its family emission limit is 
higher than the standard, as long as you show that the whole averaging 
set of applicable engine families meets the applicable emission 
standards using emission credits, and the vehicles within the family 
meet the family emission limit. The phase-in values specify the 
percentage of your U.S.-directed production that must comply with the 
emission standards for those model years. Calculate this compliance 
percentage based on a simple count of your U.S.-directed production 
units within each certified engine family compared with a simple count 
of your total U.S.-directed production units. Table 1 also shows the 
maximum value you may specify for a family emission limit, as follows:
* * * * *
    (b) The exhaust emission standards in this section apply for 
snowmobiles using the fuel type on which they are designed to operate. 
You must meet the numerical emission standards for hydrocarbons in this 
section based on the following types of hydrocarbon emissions for 
snowmobiles powered by the following fuels:
* * * * *
    (c) Your snowmobiles must meet emission standards over their full 
useful life. The minimum useful life is 8,000 kilometers, 400 hours of 
engine operation, or five calendar years, whichever comes first. You 
must specify a longer useful life in terms of kilometers and hours for 
the engine family if the average service life of your vehicles is 
longer than the minimum value, as follows:
* * * * *

0
274. Section 1051.105 is amended by revising paragraph (a)(1) before 
the table and paragraphs (a)(3), (b) introductory text, and (c) 
introductory text to read as follows:


Sec.  1051.105  What are the exhaust emission standards for off-highway 
motorcycles?

    (a) * * *
    (1) Follow Table 1 of this section for exhaust emission standards. 
You may generate or use emission credits under the averaging, banking, 
and trading (ABT) program for HC+NOX and CO emissions, as 
described in subpart H of this part. This requires that you specify a 
family emission limit for each pollutant you include in the ABT program 
for each engine family. These family emission limits serve as the 
emission standards for the engine family with respect to all required 
testing instead of the standards specified in this section. An engine 
family meets emission standards evenif its family emission limit is 
higher than the standard, as long as you show that the whole averaging 
set of applicable engine families meets the applicable emission 
standards using emission credits, and the vehicles within the family 
meet the family emission limit. The phase-in values specify the 
percentage of your U.S.-directed production that must comply with the 
emission standards for those model years. Calculate this compliance 
percentage based on a simple count of your U.S.-directed production 
units within each certified engine family compared with a simple count 
of your total U.S.-directed production units. Table 1 follows:
* * * * *
    (3) You may certify off-highway motorcycles with engines that have 
total displacement of 70 cc or less to the exhaust emission standards 
in Sec.  1051.615 instead of certifying them to the exhaust emission 
standards of this section. Count all such vehicles in the phase-in 
(percent) requirements of this section.
    (b) The exhaust emission standards in this section apply for off-
highway motorcycles using the fuel type on which they are designed to 
operate. You must meet the numerical emission standards for 
hydrocarbons in this section based on the following types of 
hydrocarbon emissions for off-highway

[[Page 40488]]

motorcycles powered by the following fuels:
* * * * *
    (c) Your off-highway motorcycles must meet emission standards over 
their full useful life. For off-highway motorcycles with engines that 
have total displacement greater than 70 cc, the minimum useful life is 
10,000 kilometers or five years, whichever comes first. For off-highway 
motorcycles with engines that have total displacement of 70 cc or less, 
the minimum useful life is 5,000 kilometers or five years, whichever 
comes first. You must specify a longer useful life for the engine 
family in terms of kilometers if the average service life of your 
vehicles is longer than the minimum value, as follows:
* * * * *

0
275. Section 1051.107 is amended by revising paragraphs (a), (b) 
introductory text, and
    (c) introductory text to read as follows:


Sec.  1051.107  What are the exhaust emission standards for all-terrain 
vehicles (ATVs) and offroad utility vehicles?

* * * * *
    (a) Apply the exhaust emission standards in this section by model 
year. Measure emissions with the ATV test procedures in subpart F of 
this part.
    (1) Follow Table 1 of this section for exhaust emission standards. 
You may generate or use emission credits under the averaging, banking, 
and trading (ABT) program for HC+NOX emissions, as described 
in subpart H of this part. This requires that you specify a family 
emission limit for each pollutant you include in the ABT program for 
each engine family. These family emission limits serve as the emission 
standards for the engine family with respect to all required testing 
instead of the standards specifiedin this section. An engine family 
meets emission standards even if its family emission limit is higher 
than the standard, as long as you show that the whole averaging set of 
applicable engine families meets the applicable emission standards 
using emission credits, and the vehicles within the family meet the 
family emission limit. Table 1 also shows the maximum value you may 
specify for a family emission limit. The phase-in values in the table 
specify the percentage of your total U.S.-directed production that must 
comply with the emission standards for those model years.
    Calculate this compliance percentage based on a simple count of 
your U.S.-directed production units within each certified engine family 
compared with a simple count of your total U.S.-directed production 
units. This applies to your total production of ATVs and offroad 
utility vehicles that are subject to the standards of this part; 
including both ATVs and offroad utility vehicles subject to the 
standards of this section and ATVs and offroad utility vehicles 
certified to the standards of other sections in this part 1051 (such as 
Sec.  1051.615, but not including vehicles certified under other parts 
in this chapter (such as 40 CFR part 90). Table 1 follows:

                                         Table 1 of Sec.   1051.107.--Exhaust Emission Standards for ATVs (g/km)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                Emission standards           Maximum allowable family
                                                                             Phase-in    --------------------------------         emission limits
                   Phase                             Model year              (percent)                                   -------------------------------
                                                                                              HC+NOX            CO            HC+NOX            CO
--------------------------------------------------------------------------------------------------------------------------------------------------------
Phase 1...................................  2006........................              50             1.5              35            20.0  ..............
                                            2007 and later..............             100             1.5              35            20.0  ..............
--------------------------------------------------------------------------------------------------------------------------------------------------------

    (2) You may certify ATVs with engines that have total displacement 
of less than 100 cc to the exhaust emission standards in Sec.  1051.615 
instead of certifying them to the exhaust emission standards of this 
section. Count all such vehicles in the phase-in(percent) requirements 
of this section.
    (b) The exhaust emission standards in this section apply for ATVs 
using the fuel type on which they are designed to operate. You must 
meet the numerical emission standards for hydrocarbons in this section 
based on the following types of hydrocarbon emissions for ATVs powered 
by the following fuels:
* * * * *
    (c) Your ATVs must meet emission standards over their full useful 
life. For ATVs with engines that have total displacement of 100 cc or 
greater, the minimum useful life is 10,000 kilometers, 1000 hours of 
engine operation, or five years, whichever comes first. For ATVs with 
engines that have total displacement of less than 100 cc, the minimum 
useful life is 5,000 kilometers, 500 hours of engine operation, or five 
years, whichever comes first. You must specify a longer useful life for 
the engine family in terms of kilometers and hours if the average 
service life of your vehicles is longer than the minimum value, as 
follows:
* * * * *

0
276. Section 1051.110 is amended by revising the introductory text and 
paragraph (a) to read as follows:


Sec.  1051.110  What evaporative emission standards must my vehicles 
meet?

    Your new vehicles must meet the emission standards of this section 
over their full useful life. Note that Sec.  1051.245 allows you to use 
design-based certification instead of generating new emission data.
    (a) Beginning with the 2008 model year, permeation emissions from 
your vehicle's fuel tank(s) may not exceed 1.5 grams per square-meter 
per day when measured with the test procedures for tank permeation in 
subpart F of this part. You may generate or use emission credits under 
the averaging, banking, and trading (ABT) program, as describedin 
subpart H of this part.
* * * * *

0
277. Section 1051.115 is amended by removing and reserving paragraph 
(b), revising paragraphs (a), (c), (f), and (g), and adding a new 
paragraph (d)(3)(vi) to read as follows:


Sec.  1051.115  What other requirements must my vehicles meet?

* * * * *
    (a) Closed crankcase. Crankcase emissions may not be discharged 
directly into the ambient atmosphere from any vehicle throughout its 
useful life.
* * * * *
    (c) Adjustable parameters. Vehicles that have adjustable parameters 
must meet all the requirements of this part for any adjustment in the 
physically adjustable range. Note that parameters that control the air-
fuel ratio may be treated separately under paragraph (d) of this 
section. An operating parameter is not considered adjustable if you 
permanently sealit or if it is not normally accessible using ordinary 
tools. We may require that you set adjustable parameters to any 
specification within the adjustable range during any testing,including

[[Page 40489]]

certification testing, production-line testing, or in-use testing.
    (d) * * *
    (3) * * *
    (vi) The adjustable range of carburetor screws, such as air screw, 
fuel screw, andidle-speed screw must be defined by stops, limits, or 
specification on the jetting chart consistent with the requirements for 
specifying jet sizes and needle configuration in this section.
* * * * *
    (f) Defeat devices. You may not equip your vehicles with a defeat 
device. A defeat device is an auxiliary emission-control device that 
reduces the effectiveness of emission controls under conditions that 
the vehicle may reasonably be expected to encounter during normal 
operation and use. This does not apply to auxiliary emission-control 
devices you identify in your certification application if any of the 
following is true:
    (1) The conditions of concern were substantially included in the 
applicable test procedures described in subpart F of this part.
    (2) You show your design is necessary to prevent vehicle damage or 
accidents.
    (3) The reduced effectiveness applies only to starting the engine.
    (g) Noise standards. There are no noise standards specified in this 
part 1051. See 40 CFR Chapter I, Subchapter G, to determine if your 
vehicle must meet noise emission standards under another part of our 
regulations.

0
278. Section 1051.120 is revised to read as follows:


Sec.  1051.120  What emission-related warranty requirements apply to 
me?

    (a) General requirements. You must warrant to the ultimate 
purchaser and each subsequent purchaser that the new engine, including 
all parts of its emission-control system, meets two conditions:
    (1) It is designed, built, and equipped so it conforms at the time 
of sale to the ultimate purchaser with the requirements of this part.
    (2) It is free from defects in materials and workmanship that may 
keep it from meeting these requirements.
    (b) Warranty period. Your emission-related warranty must be valid 
for at least 50 percent of the vehicle's minimum useful life in 
kilometers or hours of engine operation (where applicable), or at least 
30 months, whichever comes first. You may offer an emission-related 
warranty more generous than we require. The emission-related warranty 
for the engine may not be shorter than any published warranty you offer 
without charge for the engine. Similarly, the emission-related warranty 
for any component may not be shorter than any published warranty you 
offer without charge for that component. If a vehicle has no odometer, 
base warranty periods in this paragraph (b) only on the vehicle's age 
(in years). The warranty period begins when the engine is placed into 
service.
    (c) Components covered. The emission-related warranty covers all 
components whose failure would increase an engine's emissions of any 
pollutant. This includes components listed in 40 CFR part 1068, 
Appendix I, and components from any other system you develop to control 
emissions. The emission-related warranty covers these components even 
if another company produces the component. Your emission-related 
warranty does not cover components whose failure would not increase an 
engine's emissions of any pollutant.
    (d) Limited applicability. You may deny warranty claims under this 
section if the operator caused the problem through improper maintenance 
or use, as described in 40CFR 1068.115. You may ask us to allow you to 
exclude from your emission-related warranty certified vehicles that 
have been used significantly for competition, especially certified 
motorcycles that meet at least four of the criteria in Sec.  
1051.620(b)(1).
    (e) Owners manual. Describe in the owners manual the emission-
related warranty provisions from this section that apply to the engine.

0
279. Section 1051.125 is revised to read as follows:


Sec.  1051.125  What maintenance instructions must I give to buyers?

    Give the ultimate purchaser of each new vehicle written 
instructions for properly maintaining and using the vehicle, including 
the emission-control system. The maintenance instructions also apply to 
service accumulation on your emission-data vehicles, as described in 
Sec.  1051.240, Sec.  1051.245, and 40 CFR part 1065.
    (a) Critical emission-related maintenance. Critical emission-
related maintenanceincludes any adjustment, cleaning, repair, or 
replacement of critical emission-related components. This may also 
include additional emission-related maintenance that you determine is 
critical if we approve it in advance. You may schedule critical 
emission-related maintenance on these components if you meet the 
following conditions:
    (1) You demonstrate that the maintenance is reasonably likely to be 
done at the recommended intervals on in-use vehicles. We will accept 
scheduled maintenance as reasonably likely to occur if you satisfy any 
of the following conditions:
    (i) You present data showing that, if a lack of maintenance 
increases emissions, it also unacceptably degrades the vehicle's 
performance.
    (ii) You present survey data showing that at least 80 percent of 
vehicles in the field get the maintenance you specify at the 
recommended intervals.
    (iii) You provide the maintenance free of charge and clearly say so 
in maintenanceinstructions for the customer.
    (iv) You otherwise show us that the maintenance is reasonably 
likely to be done at the recommended intervals.
    (2) You may not schedule critical emission-related maintenance 
within the minimum useful life period for aftertreatment devices, 
pulse-air valves, fuel injectors, oxygen sensors, electronic control 
units, superchargers, or turbochargers.
    (b) Recommended additional maintenance. You may recommend any 
additional amount of maintenance on the components listed in paragraph 
(a) of this section, as long as you state clearly that these 
maintenance steps are not necessary to keep the emission-related 
warranty valid. If operators do the maintenance specified in paragraph 
(a) of this section, but not the recommended additional maintenance, 
this does not allow you to disqualifythose vehicles from in-use testing 
or deny a warranty claim. Do not take these maintenance steps during 
service accumulation on your emission-data vehicles.
    (c) Special maintenance. You may specify more frequent maintenance 
to address problems related to special situations, such as atypical 
vehicle operation. You must clearly state that this additional 
maintenance is associated with the special situation you are 
addressing.
    (d) Noncritical emission-related maintenance. You may schedule any 
amount of emission-related inspection or maintenance that is not 
covered by paragraph (a) of this section, as long as you state in the 
owners manual that these steps are not necessary to keep the emission-
related warranty valid. If operators fail to do this maintenance, this 
does not allow you to disqualify those vehicles from in-use testing or 
deny a warranty claim. Do not take these inspection or maintenance 
steps during service accumulation on your emission-data vehicles.
    (e) Maintenance that is not emission-related. For maintenance 
unrelated to emission controls, you may schedule any amount of 
inspection or maintenance. You may also takethese

[[Page 40490]]

inspection or maintenance steps during service accumulation on your 
emission-data vehicles, as long as they are reasonable and 
technologically necessary. This mightinclude adding engine oil, 
changing air, fuel, or oil filters, servicing engine-cooling systems, 
and adjusting idle speed, governor, engine bolt torque, valve lash, or 
injector lash, or adjusting chain tension, clutch position, or tire 
pressure. You may perform this nonemission-related maintenance on 
emission-data vehicles at the least frequent intervalsthat you 
recommend to the ultimate purchaser (but not the intervals recommended 
for severe service). You may also visually inspect test vehicles or 
engines, including emission-related components, as needed to ensure 
safe operation.
    (f) Source of parts and repairs. State clearly on the first page of 
your written maintenanceinstructions that a repair shop or person of 
the owner's choosing may maintain, replace, or repair emission-control 
devices and systems. Your instructions may not require components or 
service identified by brand, trade, or corporate name. Also, do not 
directly or indirectly condition your warranty on a requirement that 
the vehicle be serviced by your franchised dealers or any other service 
establishments with which you have a commercial relationship. You may 
disregard the requirements in this paragraph (f) if you do one of two 
things:
    (1) Provide a component or service without charge under the 
purchase agreement.
    (2) Get us to waive this prohibition in the public's interest by 
convincing us the vehicle will work properly only with the identified 
component or service.
    (g) Payment for scheduled maintenance. Owners are responsible for 
properly maintainingtheir vehicles. This generally includes paying for 
scheduled maintenance. However, manufacturers must pay for scheduled 
maintenance during the useful life if it meets allthe following 
criteria:
    (1) Each affected component was not in general use on similar 
vehicles before the 2006 model year.
    (2) The primary function of each affected component is to reduce 
emissions.
    (3) The cost of the scheduled maintenance is more than 2 percent of 
the price of the vehicle.
    (4) Failure to perform the maintenance would not cause clear 
problems that would significantly degrade the vehicle's performance.
    (h) Owners manual. Explain the owner's responsibility for proper 
maintenance in the owners manual.

0
280. Section 1051.130 is revised to read as follows:


Sec.  1051.130  What installation instructions must I give to vehicle 
manufacturers?

    (a) If you sell an engine for someone else to install in a piece of 
nonroad equipment, givethe engine installer instructions for installing 
it consistent with the requirements of this part. Include all 
information necessary to ensure that an engine will be installed in its 
certified configuration.
    (b) Make sure these instructions have the following information:
    (1) Include the heading: ``Emission-related installation 
instructions''.
    (2) State: ``Failing to follow these instructions when installing a 
certified engine in a piece of nonroad equipment violates federal law 
(40 CFR 1068.105(b)), subject to fines or other penalties as described 
in the Clean Air Act.''.
    (3) Describe the instructions needed to properly install the 
exhaust system and any other components. Include instructions 
consistent with the requirements of Sec.  1051.205(r).
    (4) Describe the steps needed to comply with the evaporative 
emission standards in Sec.  1051.110.
    (5) Describe any limits on the range of applications needed to 
ensure that the engine operates consistently with your application for 
certification. For example, if your engines are certified only to the 
snowmobile standards, tell vehicle manufacturers notto install the 
engines in other vehicles.
    (6) Describe any other instructions to make sure the installed 
engine will operate according to design specifications in your 
application for certification. This mayinclude, for example, 
instructions for installing aftertreatment devices when installing the 
engines.
    (7) State: ``If you install the engine in a way that makes the 
engine's emission controlinformation label hard to read during normal 
engine maintenance, you must place a duplicate label on the vehicle, as 
described in 40 CFR 1068.105.''.
    (c) You do not need installation instructions for engines you 
install in your own vehicles.
    (d) Provide instructions in writing or in an equivalent format. For 
example, you may post instructions on a publicly available Web site for 
downloading or printing. If you do not provide the instructions in 
writing, explain in your application for certification how you will 
ensure that each installer is informed of the installation 
requirements.

0
281. Section 1051.135 is revised to read as follows:


Sec.  1051.135  How must I label and identify the vehicles I produce?

    Each of your vehicles must have three labels: a vehicle 
identification number as described in paragraph (a) of this section, an 
emission control information label as described in paragraphs (b) 
through (e) of this section, and a consumer information label as 
describedin Sec.  1051.137.
    (a) Assign each vehicle a unique identification number and 
permanently affix, engrave, or stamp it on the vehicle in a legible 
way.
    (b) At the time of manufacture, affix a permanent and legible 
emission control information label identifying each vehicle. The label 
must be
    (1) Attached so it is not removable without being destroyed or 
defaced.
    (2) Secured to a part of the vehicle (or engine) needed for normal 
operation and not normally requiring replacement.
    (3) Durable and readable for the vehicle's entire life.
    (4) Written in English.
    (c) The label must--
    (1) Include the heading ``EMISSION CONTROL INFORMATION''.
    (2) Include your full corporate name and trademark. You may 
identify another company and use its trademark instead of yours if you 
comply with the provisions of Sec.  1051.645.
    (3) Include EPA's standardized designation for engine families, as 
described in Sec.  1051.230.
    (4) State the engine's displacement (in liters). You may omit this 
from the emission control information label if the vehicle is 
permanently labeled with a unique model name that corresponds to a 
specific displacement. Also, you may omit displacement from the label 
if all the engines in the engine family have the same per-cylinder 
displacement and total displacement.
    (5) State: ``THIS VEHICLE IS CERTIFIED TO OPERATE ON [specify 
operating fuel or fuels].''.
    (6) State the date of manufacture [MONTH and YEAR]. You may omit 
this from the label if you keep a record of the engine-manufacture 
dates and provide it to us upon request, or if you stamp the date on 
the engine or vehicle.
    (7) State the exhaust emission standards or FELs to which the 
vehicles are certified.
    (8) Identify the emission-control system. Use terms and 
abbreviations consistent withSAE J1930 (incorporated by reference in 
Sec.  1051.810). You may omit this information from the label if

[[Page 40491]]

there is not enough room for it and you put it in the owners 
manualinstead.
    (9) List specifications and adjustments for engine tuneups; show 
the proper position for the transmission during tuneup and state which 
accessories should be operating.
    (10) Identify the fuel type and any requirements for fuel and 
lubricants. You may omit this information from the label if there is 
not enough room for it and you put it in the owners manual instead.
    (11) State the useful life for your engine family if it is 
different than the minimum value.
    (12) State: ``S VEHICLE MEETS U.S. EPA REGULATIONS FOR [MODEL YEAR] 
[SNOWMOBILES or OFF-ROAD MOTORCYCLES or ATVs or OFFROAD UTILITY 
VEHICLES].''.
    (d) You may add information to the emission control information 
label to identify other emission standards that the vehicle meets or 
does not meet (such as California standards). You may also add other 
information to ensure that the engine will be properly maintained and 
used.
    (e) You may ask us to approve modified labeling requirements in 
this part 1051 if you show that it is necessary or appropriate. We will 
approve your request if your alternate label is consistent with the 
requirements of this part.
    (f) If you obscure the engine label while installing the engine in 
the equipment such thatthe label will be hard to read during normal 
maintenance, you must place a duplicate label on the equipment. If 
others install your engine in their equipment in a way that obscuresthe 
engine label, we require them to add a duplicate label on the equipment 
(see 40 CFR 1068.105); in that case, give them the number of duplicate 
labels they request and keepthe following records for at least five 
years:
    (1) Written documentation of the request from the equipment 
manufacturer.
    (2) The number of duplicate labels you send and the date you sent 
them.
    (g) Label every vehicle certified under this part with a removable 
hang-tag showing its emission characteristics relative to other models, 
as described in Sec.  1051.137.

0
282. A new Sec.  1051.137 is added to read as follows:


Sec.  1051.137  What are the consumer labeling requirements?

    Label every vehicle certified under this part with a removable 
hang-tag showing its emission characteristics relative to other models. 
The label should be attached securely to the vehicle before it is 
offered for sale in such a manner that it would not be accidentally 
removed prior to sale. Use the applicable equations of this section to 
determine the normalized emission rate (NER) from the FEL for your 
vehicle. If the vehicle is certified without using the averaging 
provisions of subpart H, use the final deteriorated emission level. 
Round the resulting normalized emission rate for your vehicle to one 
decimal place. If the calculated NER value is less than zero, consider 
NER to be zero for that vehicle. We may specify a standardized format 
for labels. At a minimum, the tag should include: the manufacturer's 
name, vehicle model name, engine description (500 cc two-stroke with 
DFI), the NER, and a brief explanation of the scale (for example, note 
that 0 is the cleanest and 10 is the least clean).
    (a) For snowmobiles, use the following equation:

NER = 16.61 x log (2.667 x HC + CO)-38.22

Where:

HC and CO are the cycle-weighted FELs (or emission rates) for 
hydrocarbons and carbon monoxide in g/kW-hr.

    (b) For off-highway motorcycles, use the following equations:
    (1) For off-highway motorcycles certified to the standards in Sec.  
1051.105, use one of the equations specified below.
    (i) If the vehicle has HC + NOX emissions less than or 
equal to 2.0 g/km, use the following equation:

NER = 2.500 x (HC+NOX)

Where:

HC+NOX is the FEL (or the sum of the cycle-weighted emission 
rates) for hydrocarbons and oxides of nitrogen in g/km.

    (ii) If the vehicle has HC + NOX emissions greater than 
2.0 g/km, use the following equation:

NER = 5.000 x log(HC+NOX)+ 3.495

Where:

HC+NOX is the FEL (or the sum of the cycle-weighted emission 
rates) for hydrocarbons and oxides of nitrogen in g/km.

    (2) For off-highway motorcycles certified to the standards in Sec.  
1051.615(b), use the following equation:

NER = 8.782 x log(HC+NOX) -5.598

Where:

HC+NOX is the FEL (or the sum of the cycle-weighted emission 
rates) for hydrocarbons and oxides of nitrogen in g/kW-hr.

    (c) For ATVs, use the following equations:
    (1) For ATVs certified to the standards in Sec.  1051.107, use one 
of the equations specified below.
    (i) If the vehicle has HC + NOX emissions less than or 
equal to 1.5 g/km, use the following equation:

NER = 3.333 x (HC+NOX)

Where:

HC+NOX is the FEL (or the sum of the cycle-weighted emission 
rates) for hydrocarbons and oxides of nitrogen in g/km.

    (ii) If the vehicle has HC + NOX emissions greater than 
1.5 g/km, use the following equation:

NER = 4.444 x log(HC+NOX)+4.217

Where:

HC+NOX is the FEL (or the sum of the cycle-weighted emission 
rates) for hydrocarbons and oxides of nitrogen in g/km.

    (2) For ATVs certified to the standards in Sec.  1051.615(a), use 
the following equation:

NER = 8.782 x log(HC + NOX) -7.277

Where:

HC+NOX is the FEL (or the sum of the cycle-weighted emission 
rates) for hydrocarbons and oxides of nitrogen in g/kW-hr.


0
283. Section 1051.145 is amended by removing and reserving paragraph 
(c), revising paragraphs (a)(3)(iv), (a)(4), (b)(1) before the table, 
(b)(3), (e), and (g), and adding paragraphs (a)(3)(v), (a)(3)(vi), and 
(h) to read as follows:


Sec.  1051.145  What provisions apply only for a limited time?

* * * * *
    (a) * * *
    (3) * * *
    (iv) Show that fewer than 50 percent of the engine family's total 
sales in the United States are used in recreational vehicles regulated 
under this part. This includes engines used in any application, without 
regard to which company manufactures the vehicle or equipment.
    (v) If your engines do not meet the criteria listed in paragraph 
(a) of this section, they will be subject to the provisions of this 
part. Introducing these engines into commerce without a valid exemption 
or certificate of conformity violates the prohibitions in 40 CFR 
1068.101.
    (vi) Engines exempted under this paragraph (a)(3) are subject to 
all the requirements affecting engines under 40 CFR part 90. The 
requirements and restrictions of 40 CFR part 90 apply to anyone 
manufacturing these engines, anyone manufacturing equipment that

[[Page 40492]]

uses these engines, and all other persons in the same manner as other 
engines subject to 40 CFR part 90.
    (4) All vehicles produced under this paragraph (a) must be labeled 
according to our specifications. The label must include the following:
    (i) The heading ``EMISSION CONTROL INFORMATION''.
    (ii) Your full corporate name and trademark.
    (iii) A description of the provisions under which this section 
applies to your vehicle .
    (iv) Other information that we specify to you in writing.
    (b) * * *
    (1) Follow Table 1 of this section for exhaust emission standards, 
while meeting all the other requirements of Sec.  1051.107. You may use 
emission credits to show compliance with these standards (see subpart H 
of this part). You may not exchange emission credits with engine 
families meeting the standards in Sec.  1051.107(a). You may also not 
exchange credits between engine families certified to the standards for 
engines above 225 cc and engine families certified to the standards for 
engines below 225 cc. The phase-in percentages in the table specify the 
percentage of your total U.S.-directed production that must comply with 
the emission standards for those model years (i.e., the percentage 
requirement does not apply separately for engine families above and 
below 225 cc). Table 1 follows:
* * * * *
    (3) For ATVs certified to the standards in this paragraph (b), use 
the following equations to determine the normalized emission rate 
required by Sec.  1051.137:
    (i) For engines at or above 225 cc, use the following equation:

NER = 9.898 x log (HC + NOX) - 4.898

Where:

HC +NOX is the sum of the cycle-weighted emission rates for 
hydrocarbons and oxides of nitrogen in g/kW-hr.

    (ii) For engines below 225 cc, use the following equation:

NER = 9.898 x log [(HC+NOX) 0.83] - 4.898

Where:

HC +NOX is the sum of the cycle-weighted emission rates for 
hydrocarbons and oxides of nitrogen in g/kW-hr.
* * * * *
    (e) Raw sampling procedures. Using good engineering judgment, you 
may use the alternate raw-sampling procedures instead of the procedures 
described in 40 CFR part 1065 for emission testing certain vehicles, as 
follows:
    (1) Snowmobile. You may use the raw sampling procedures described 
in 40 CFR part 90 or 91 for snowmobiles before the 2010 model year.
    (2) ATV. You may use the raw sampling procedures described in 40 
CFR part 90 or 91 for ATVs certified to the standards in Sec.  1051.615 
before the 2011 model year. You may use these raw sampling procedures 
for ATVs certified to the standards in Sec.  1051.107 or Sec.  
1051.145(b) before the 2009 model year.
* * * * *
    (g) Pull-ahead option for permeation emissions. Manufacturers 
choosing to comply with an early tank permeation standard of 3.0 g/
m\2\/day prior to model year 2008 may be allowed to delay compliance 
with the 1.5 g/m\2\/day standard by earning credits, as follows:

    (1) Calculate earned credits using the following equation:

Credit = (Baseline emissions - Pull-ahead level) x 
[lsqbb][Sigma]i(Production)i x 
(UL)i[rsqbb]

Where:

Baseline emissions = the baseline emission rate, as determined in 
paragraph (g)(2) of this section.
Pull-ahead level = the permeation level to which you certify the tank, 
which must be at or below 3.0 g/m\2\/day.
(Production)i = the annual production volume of vehicles in 
the engine family for model year ``i'' times the average internal 
surface area of the vehicles' fuel tanks.
(UL)i = The useful life of the engine family in model year 
``i''.

    (2) Determine the baseline emission level for calculating credits 
using any of the following values:
    (i) 7.6 g/m\2\/day.
    (ii) The emission rate measured from your lowest-emitting, 
uncontrolled fuel tank from the current or previous model year using 
the procedures in Sec.  1051.515. For example, this would generally 
involve the fuel tank with the greatest wall thickness for a given 
material.
    (iii) The emission rate measured from an uncontrolled fuel tank 
that is the same as or most similar to the model you have used during 
the current or previous model year. However, you may use this approach 
only if you use it to establish a baseline emission level for each 
unique tank model you produce using the procedures in Sec.  1051.515.
    (3) Pull-ahead tanks under this option must be certified and must 
meet all applicable requirements other than those limited to compliance 
with the exhaust standards.
    (4) You may use credits generated under this paragraph (g) as 
specified in subpart H of this part.
    (h) Deficit credits for permeation standards. For 2008 through 2010 
model years, you may have a negative balance of emission credits 
relative to the permeation emission standards at the end of each model 
year, subject to the following provisions:
    (1) You must eliminate any credit deficit we allow under this 
paragraph (h) by the end of the 2011 model year. If you are unable to 
eliminate your credit deficit by the end of the 2011 model year, we may 
void the certificates for all families certified to FELs above the 
allowable average, for all affected model years.
    (2) State in your application for certification a statement whether 
you will have a negative balance of permeation emission credits for 
that model year. If you project that you will have a negative balance, 
estimate the credit deficit for each affected model year and present a 
detailed plan to show where and when you will get credits to offset the 
deficit by the end of the 2011 model year.
    (3) In your end-of-year report under Sec.  1051.730, state whether 
your credit deficit is larger or smaller than you projected in your 
application for certification. If the deficit is larger than projected, 
include in your end-of-year report an update to your detailed plan to 
show how you will eliminate the credit deficit by the end of the 2011 
model year.

0
284. Section 1051.201 is revised to read as follows:


Sec.  1051.201  What are the general requirements for obtaining a 
certificate of conformity?

    (a) You must send us a separate application for a certificate of 
conformity for each engine family. A certificate of conformity is valid 
from the indicated effective date until December 31 of the model year 
for which it is issued.
    (b) The application must contain all the information required by 
this part and must not include false or incomplete statements or 
information (see Sec.  1051.255).
    (c) We may ask you to include less information than we specify in 
this subpart, as long as you maintain all the information required by 
Sec.  1051.250.
    (d) You must use good engineering judgment for all decisions 
related to your application (see 40 CFR 1068.5).
    (e) An authorized representative of your company must approve and 
sign the application.

[[Page 40493]]

    (f) See Sec.  1051.255 for provisions describing how we will 
process your application.
    (g) We may require you to deliver your test vehicles or engines to 
a facility we designate for our testing (see Sec.  1051.235(c)).

0
285. Section 1051.205 is revised to read as follows:


Sec.  1051.205  What must I include in my application?

    This section specifies the information that must be in your 
application, unless we ask you to include less information under Sec.  
1051.201(c). We may require you to provide additional information to 
evaluate your application.
    (a) Describe the engine family's specifications and other basic 
parameters of the vehicle's design and emission controls. List the fuel 
type on which your engines are designed to operate (for example, 
gasoline, liquefied petroleum gas, methanol, or natural gas). List 
vehicle configurations and model names that are included in the engine 
family.
    (b) Explain how the emission-control system operates. Describe the 
evaporative emission controls. Also describe in detail all system 
components for controlling exhaust emissions, including all auxiliary-
emission control devices (AECDs) and all fuel-system components you 
will install on any production or test vehicle or engine. Identify the 
part number of each component you describe. For this paragraph (b), 
treat as separate AECDs any devices that modulate or activate 
differently from each other. Include all the following:
    (1) Give a general overview of the engine, the emission-control 
strategies, and all AECDs.
    (2) Describe each AECD's general purpose and function.
    (3) Identify the parameters that each AECD senses (including 
measuring, estimating, calculating, or empirically deriving the 
values). Include vehicle-based parameters and state whether you 
simulate them during testing with the applicable procedures.
    (4) Describe the purpose for sensing each parameter.
    (5) Identify the location of each sensor the AECD uses.
    (6) Identify the threshold values for the sensed parameters that 
activate the AECD.
    (7) Describe the parameters that the AECD modulates (controls) in 
response to any sensed parameters, including the range of modulation 
for each parameter, the relationship between the sensed parameters and 
the controlled parameters and how the modulation achieves the AECD's 
stated purpose. Use graphs and tables, as necessary.
    (8) Describe each AECD's specific calibration details. This may be 
in the form of data tables, graphical representations, or some other 
description.
    (9) Describe the hierarchy among the AECDs when multiple AECDs 
sense or modulate the same parameter. Describe whether the strategies 
interact in a comparative or additive manner and identify which AECD 
takes precedence in responding, if applicable.
    (10) Explain the extent to which the AECD is included in the 
applicable test procedures specified in subpart F of this part.
    (11) Do the following additional things for AECDs designed to 
protect engines or vehicles:
    (i) Identify the engine and/or vehicle design limits that make 
protection necessary and describe any damage that would occur without 
the AECD.
    (ii) Describe how each sensed parameter relates to the protected 
components' design limits or those operating conditions that cause the 
need for protection.
    (iii) Describe the relationship between the design limits/
parameters being protected and the parameters sensed or calculated as 
surrogates for those design limits/parameters, if applicable.
    (iv) Describe how the modulation by the AECD prevents engines and/
or equipment from exceeding design limits.
    (v) Explain why it is necessary to estimate any parameters instead 
of measuring them directly and describe how the AECD calculates the 
estimated value, if applicable.
    (vi) Describe how you calibrate the AECD modulation to activate 
only during conditions related to the stated need to protect components 
and only as needed to sufficiently protect those components in a way 
that minimizes the emissionimpact.
    (c) [Reserved]
    (d) Describe the vehicles or engines you selected for testing and 
the reasons for selecting them.
    (e) Describe the test equipment and procedures that you used, 
including any special or alternate test procedures you used (see Sec.  
1051.501).
    (f) Describe how you operated the emission-data vehicle before 
testing, including the duty cycle and the extent of engine operation 
used to stabilize emission levels. Explain why you selected the method 
of service accumulation. Describe any scheduled maintenance you did.
    (g) List the specifications of the test fuel to show that it falls 
within the required ranges we specify in 40 CFR part 1065.
    (h) Identify the engine family's useful life.
    (i) Include the maintenance instructions you will give to the 
ultimate purchaser of each new vehicle (see Sec.  1051.125).
    (j) Include the emission-related installation instructions you will 
provide if someone else installs your engines in a vehicle (see Sec.  
1051.130).
    (k) Describe the labels you create to meet the requirements of 
Sec.  1051.135.
    (l) Identify the exhaust emission standards or FELs to which you 
are certifying engines in the engine family.
    (m) Identify the engine family's deterioration factors and describe 
how you developed them (see Sec.  1051.243 and Sec.  1051.245). Present 
any emission test data you used for this.
    (n) State that you operated your emission-data vehicles as 
described in the application (including the test procedures, test 
parameters, and test fuels) to show you meet the requirements of this 
part.
    (o) Present emission data to show that you meet emission standards, 
as follows:
    (1) Present emission data for hydrocarbons (such as NMHC or THCE, 
as applicable), NOX, and CO on an emission-data vehicle to 
show your vehicles meet the applicable exhaust emission standards we 
specify in subpart B of this part. Show emission figures before and 
after applying deterioration factors for each pollutant and for each 
vehicle or engine. If we specify more than one grade of any fuel type 
(for example, a summer grade and winter grade of gasoline), you need to 
submit test data only for one grade, unless the regulations of this 
part specify otherwise for your engine.
    (2) Present evaporative test data for hydrocarbons to show your 
vehicles meet the evaporative emission standards we specify in subpart 
B of this part. Show emission figures before and after applying 
deterioration factors for each vehicle or engine, where applicable. If 
you did not perform the testing, identify the source of the test data.
    (3) Note that Sec.  1051.235 and Sec.  1051.245 allow you to submit 
an application in certain cases without new emission data.
    (p) Report all test results, including those from invalid tests or 
from any other tests, whether or not they were conducted according to 
the test procedures of subpart F of this part. If you measure 
CO2, report those emission levels. We may ask you to send 
other information to confirm that your tests

[[Page 40494]]

were valid under the requirements of this part and 40 CFR part 1065.
    (q) Describe all adjustable operating parameters (see Sec.  
1051.115(e)), including production tolerances. Include the following in 
your description of each parameter:
    (1) The nominal or recommended setting.
    (2) The intended physically adjustable range.
    (3) The limits or stops used to establish adjustable ranges.
    (4) Information showing why the limits, stops, or other means of 
inhibiting adjustment are effective in preventing adjustment of 
parameters on in-use engines to settings outside your intended 
physically adjustable ranges.
    (r) Confirm that your emission-related installation instructions 
specify how to ensure that sampling of exhaust emissions will be 
possible after engines are installed in equipment and placed in 
service. If this cannot be done by simply adding a 20-centimeter 
extension to the exhaust pipe, show how to sample exhaust emissions in 
a way that prevents diluting the exhaust sample with ambient air.
    (s) Unconditionally certify that all the vehicles and/or engines in 
the engine family comply with the requirements of this part, other 
referenced parts of the CFR, and the Clean Air Act.
    (t) Include estimates of U.S.-directed production volumes.
    (u) Include the information required by other subparts of this 
part. For example, include the information required by Sec.  1051.725 
if you participate in the ABT program.
    (v) Include other applicable information, such as information 
specified in this part or 40 CFR part 1068 related to requests for 
exemptions.
    (w) Name an agent for service of process located in the United 
States. Service on this agent constitutes service on you or any of your 
officers or employees for any action by EPA or otherwise by the United 
States related to the requirements of this part.

0
286. Section 1051.210 is revised to read as follows:


Sec.  1051.210  May I get preliminary approval before I complete my 
application?

    If you send us information before you finish the application, we 
will review it and make any appropriate determinations, especially for 
questions related to engine family definitions, auxiliary emission-
control devices, deterioration factors, testing for service 
accumulation, and maintenance. Decisions made under this section are 
considered to be preliminary approval, subject to final review and 
approval. We will generally not reverse a decision where we have given 
you preliminary approval, unless we find newinformation supporting a 
different decision. If