[Code of Federal Regulations]
[Title 40, Volume 17]
[Revised as of July 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR86.709-94]
[Page 53-61]
TITLE 40--PROTECTION OF ENVIRONMENT
CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
PART 86--CONTROL OF EMISSIONS FROM NEW AND IN-USE HIGHWAY VEHICLES AND
ENGINES (CONTINUED)--Table of Contents
Subpart H--General Provisions for In-Use Emission Regulations for 1994
and Later Model Year Light-Duty Vehicles and Light-Duty Trucks
Sec. 86.709-94 In-use emission standards for 1994 and later model year light-duty trucks.
Section 86.709-94 includes text that specifies requirements that
differ from Sec. 86.091-9 of subpart A of this part. Where a paragraph
in Sec. 86.091-9 is identical and applicable to Sec. 86.709-94, this may
be indicated by specifying the corresponding paragraph and the statement
``[Reserved]. For guidance see Sec. 86.091-9.'' Where a corresponding
paragraph of Sec. 86.091-9 is not applicable, this is indicated by the
statement ``[Reserved].''
(a)(1) Standards--(i) Light light-duty trucks. In-use exhaust
emissions from 1994 and later model year light light-duty trucks shall
meet all standards in tables H94-9 and H94-10 in the rows designated
with the applicable fuel type and loaded vehicle weight, according to
the implementation schedule in table H94-8, and shall meet all standards
in tables H94-12 and H94-13 in the rows designated with the applicable
fuel type and loaded vehicle weight, according to the implementation
schedules in table H94-11, as follows:
(A)(1)(i) For model year 1994 and 1995, a minimum of the respective
percentages shown in the Tier 1I column of table H94-8 of a
manufacturer's sales of the applicable model year's light light-duty
trucks shall not exceed the applicable Tier 1I standards in
tables H94-9 and H94-10. The remaining vehicles, if any, shall not
exceed the applicable Tier 0 standards in tables H94-9 and H94-10.
(ii) For model years 1996 and 1997, a minimum of the percentages
shown in the Tier 1 percentage column of table H94-8 of a manufacturer's
sales of the applicable model year's light light-duty trucks shall not
exceed the applicable Tier 1 standards in table H94-9 and H94-10, and
the remaining vehicles,
[[Page 54]]
if any, shall not exceed the applicable Tier 1I standards in
tables H94-9 and H94-10.
(iii) For model year 1998 and beyond, a minimum of the percentage
shown in the Tier 1 percentage column of table H94-8 of a manufacturer's
sales of the applicable model year's light light-duty trucks shall not
exceed the applicable Tier 1 standards in tables H94-9 and H94-10.
(2) Particulates. For in-use exhaust emissions for 1994 and later, a
minimum of the percentage shown in table H94-11 of a manufacturer's
sales of the applicable model year's light light-duty trucks shall not
exceed the applicable Tier 1 standards in tables H94-12 and H94-13. The
remaining light light-duty trucks, if any, shall not exceed the
applicable Tier 0 standards in tables H94-12 and H94-13.
(3) Optionally, compliance with the Tier 1I and Tier 1
implementation schedules of this section may be based on the combined
sales of light-duty vehicles and light light-duty trucks, if such option
was taken for certification as allowed in Sec. 86.094-8 and Sec. 86.094-
9 of subpart A of this part. Vehicles meeting Tier 1I in-use
standards shall only be combined for this purpose with other vehicles
meeting Tier 1I standards, and those meeting Tier 1 standards
shall only be combined with those meeting the Tier 1 standards.
Table H94-8--Implementation Schedule for Light Light-Duty Trucks for
HCs, CO and NOX
------------------------------------------------------------------------
Tier 1I Tier 1
Model year percentage percentage
------------------------------------------------------------------------
1994.......................................... 40 0
1995.......................................... 80 0
1996.......................................... 60 40
1997.......................................... 20 80
1998.......................................... 0 100
------------------------------------------------------------------------
Table H94-9--Intermediate Useful Life \1\ Standards (g/mi) for Light Light-Duty Trucks for HCs, CO and NOX
--------------------------------------------------------------------------------------------------------------------------------------------------------
Fuel LVW (lbs) Standards THC NMHC THCE NMHCE CO NOX
--------------------------------------------------------------------------------------------------------------------------------------------------------
Gasoline................................... 0-3750 Tier 0.................... 0.80 ......... ......... ......... 10 1.2
Gasoline................................... 0-3750 Tier 1.................... 0.80 0.32 ......... ......... 5.2 0.4
Gasoline................................... 0-3750 Tier 1.................... 0.80 0.25 ......... ......... 3.4 0.4
Gasoline................................... 3751-5750 Tier 0.................... 0.80 ......... ......... ......... 10 1.7
Gasoline................................... 3751-5750 Tier 11................... 0.80 0.41 ......... ......... 6.7 0.7
Gasoline................................... 3751-5750 Tier 1.................... 0.80 0.32 ......... ......... 4.4 0.7
Diesel..................................... 0-3750 Tier 0.................... 0.80 ......... ......... ......... 10 1.2
Diesel..................................... 0-3750 Tier 11................... 0.80 0.32 ......... ......... 5.2 1.2
Diesel..................................... 0-3750 Tier 1.................... 0.80 0.25 ......... ......... 3.4 1.0
Diesel..................................... 3751-5750 Tier 0.................... 0.80 ......... ......... ......... 10 1.7
Diesel..................................... 3751-5750 Tier 11................... 0.80 0.41 ......... ......... 6.7 1.7
Diesel..................................... 3751-5750 Tier 1.................... 0.80 0.32 ......... ......... 4.4 0.97
Methanol................................... 0-3750 Tier 0.................... ......... ......... 0.80 ......... 10 1.2
Methanol................................... 0-3750 Tier 11................... ......... ......... 0.80 0.32 5.2 0.4
Methanol................................... 0-3750 Tier 1.................... ......... ......... 0.80 0.25 3.4 0.4
Methanol................................... 3751-5750 Tier 0.................... ......... ......... 0.80 ......... 10 1.7
Methanol................................... 3751-5750 Tier 11................... ......... ......... 0.80 0.41 6.7 0.7
Methanol................................... 3751-5750 Tier 1.................... ......... ......... 0.80 0.32 4.4 0.7
Natural Gas................................ 0-3750 Tier 0.................... ......... 0.67 ......... ......... 10 1.2
Natural Gas................................ 0-3750 Tier 11................... ......... 0.32 ......... ......... 5.2 0.4
Natural Gas................................ 0-3750 Tier 1.................... ......... 0.25 ......... ......... 3.4 0.4
Natural Gas................................ 3751-5750 Tier 0.................... ......... 0.67 ......... ......... 10 1.7
Natural Gas................................ 3751-5750 Tier 11................... ......... 0.41 ......... ......... 6.7 0.7
Natural Gas................................ 3751-5750 Tier 1.................... ......... 0.32 ......... ......... 4.4 0.7
LPG........................................ 0-3750 Tier 0.................... 0.80 ......... ......... 10 1.2
LPG........................................ 0-3750 Tier 11................... 0.80 0.32 ......... ......... 5.2 0.4
LPG........................................ 0-3750 Tier 1.................... 0.80 0.25 ......... ......... 3.4 0.4
LPG........................................ 3751-5750 Tier 0.................... 0.80 ......... ......... 10 1.7
LPG........................................ 3751-5750 Tier 11................... 0.80 0.41 ......... 6.7 0.7
LPG........................................ 3751-5750 Tier 1.................... 0.80 0.32 ......... ......... 4.4 0.7
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ The applicable useful life is 5 years or 50,000 miles, whichever first occurs.
[[Page 55]]
Table H94-10--Full Useful Life Standards (g/mi) for Light Light-Duty Trucks for HCs, CO and NOX
--------------------------------------------------------------------------------------------------------------------------------------------------------
Fuel LVW (lbs) Standards THC\2\ NMHC\1\ THCE\2\ NMHCE\1\ CO\1\ NOX\1\
--------------------------------------------------------------------------------------------------------------------------------------------------------
Gasoline................................... 0-3750 Tier 0.................... 0.80 ......... ......... ......... 10 1.2
Gasoline................................... 0-3750 Tier 1.................... 0.80 0.31 ......... ......... 4.2 0.60
Gasoline................................... 3751-5750 Tier 0.................... 0.80 ......... ......... ......... 10 1.7
Gasoline................................... 3751-5750 Tier 1.................... 0.80 0.40 ......... ......... 5.5 0.97
Diesel..................................... 0-3750 Tier 0.................... 0.80 ......... ......... ......... 10 1.2
Diesel..................................... 0-3750 Tier 1.................... 0.80 0.31 ......... ......... 4.2 1.25
Diesel..................................... 3751-5750 Tier 0.................... 0.80 ......... ......... ......... 10 1.7
Diesel..................................... 3751-5750 Tier 1.................... 0.80 0.40 ......... ......... 5.5 0.97
Methanol................................... 0-3750 Tier 0.................... ......... ......... 0.80 ......... 10 1.2
Methanol................................... 0-3750 Tier 1.................... ......... ......... 0.80 0.31 4.2 0.60
Methanol................................... 3751-5750 Tier 0.................... ......... ......... 0.80 ......... 10 1.7
Methanol................................... 3751-5750 Tier 1.................... ......... ......... 0.80 0.40 5.5 0.97
Natural Gas................................ 0-3750 Tier 0.................... 2.93 0.67 ......... ......... 10 1.2
Natural Gas................................ 0-3750 Tier 1.................... 2.93 0.31 ......... ......... 4.2 0.60
Natural Gas................................ 3751-5750 Tier 0.................... 2.93 0.67 ......... ......... 10 1.7
Natural Gas................................ 3751-5750 Tier 1.................... 2.93 0.40 ......... ......... 5.5 0.97
LPG........................................ 0-3750 Tier 0.................... 0.80 ......... ......... ......... 10 1.2
LPG........................................ 0-3750 Tier 1.................... 0.80 0.31 ......... ......... 4.2 0.60
LPG........................................ 3751-5750 Tier 0.................... 0.80 ......... ......... ......... 10 1.7
LPG........................................ 3751-5750 Tier 1.................... 0.08 0.40 ......... ......... 5.5 0.97
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ The applicable useful life is 10 years or 100,000 miles, which ever first occurs, except that no enforcement testing will be done beyond 7 years or
75,000 miles, whichever first occurs.
\2\ The applicable useful life is 11 years or 120,000 miles, whichever first occurs.
Table H94-11--Implementation Schedule for Light Light-Duty Trucks for PM
------------------------------------------------------------------------
Tier 1
Model year percentage
------------------------------------------------------------------------
1994....................................................... 0%
1995....................................................... 40%
1996....................................................... 80%
after 1996................................................. 100%
------------------------------------------------------------------------
Table H94-12--Intermediate Useful Life \1\ Standards (g/mi) for Light
Light-Duty Trucks for PM
------------------------------------------------------------------------
Fuel LVW (lbs) Standards PM
------------------------------------------------------------------------
Gasoline...................... 0-3750 Tier 0......... .........
Gasoline...................... 0-3750 Tier 1......... 0.08
Gasoline...................... 3751-5750 Tier 0......... .........
Gasoline...................... 3751-5750 Tier 1......... 0.08
Diesel........................ 0-3750 Tier 0......... 0.26
Diesel........................ 0-3750 Tier 1......... 0.08
Diesel........................ 3751-5750 Tier 0......... 0.13
Diesel........................ 3751-5750 Tier 1......... 0.08
Methanol...................... 0-3750 Tier 0......... .........
Methanol...................... 0-3750 Tier 1......... 0.08
Methanol...................... 3751-5750 Tier 0......... .........
Methanol...................... 3751-5750 Tier 1......... 0.08
Natural Gas................... 0-3750 Tier 0......... \2\ 0.26
Natural Gas................... 0-3750 Tier 1......... 0.08
Natural Gas................... 3751-5750 Tier 0......... \2\ 0.13
Natural Gas................... 3751-5750 Tier 1......... 0.08
LPG........................... 0-3750 Tier 0......... \2\ 0.26
LPG........................... 0-3750 Tier 1......... 0.08
LPG........................... 3751-5750 Tier 0......... \2\ 0.13
LPG........................... 3751-5750 Tier 1......... 0.08
------------------------------------------------------------------------
\1\ The applicable useful life is 5 years or 50,000 miles, whichever
first occurs.
\2\ Applicable only to diesel-cycle vehicles.
Table H94-13--Full Useful Life \1\ Standards (g/mi) for Light Light-Duty
Trucks for PM
------------------------------------------------------------------------
Fuel LVW (lbs) Standards PM
------------------------------------------------------------------------
Gasoline...................... 0-3750 Tier 0........ ..........
Gasoline...................... 0-3750 Tier 1........ 0.10
Gasoline...................... 3751-5750 Tier 0........ ..........
[[Page 56]]
Gasoline...................... 3751-5750 Tier 1........ 0.10
Diesel........................ 0-3750 Tier 0........ 0.26
Diesel........................ 0-3750 Tier 1........ 0.10
Diesel........................ 3751-5750 Tier 0........ 0.13
Diesel........................ 3751-5750 Tier 1........ 0.10
Methanol...................... 0-3750 Tier 0........ ..........
Methanol...................... 0-3750 Tier 1........ 0.10
Methanol...................... 3751-5750 Tier 0........ ..........
Methanol...................... 3751-5750 Tier 1........ 0.10
Natural Gas................... 0-3750 Tier 0........ \2\ 0.26
Natural Gas................... 0-3750 Tier 1........ 0.10
Natural Gas................... 3751-5750 Tier 0........ \2\ 0.13
Natural Gas................... 3751-5750 Tier 1........ 0.10
LPG........................... 0-3750 Tier 0........ \2\ 0.26
LPG........................... 0-3750 Tier 1........ 0.10
LPG........................... 3751-5750 Tier 0........ \2\ 0.13
LPG........................... 3751-5750 Tier 1........ 0.10
------------------------------------------------------------------------
\1\ The applicable useful life is 10 years or 100,000 miles, whichever
first occurs, except that no enforcement testing will be done beyond 7
years or 75,000 miles, whichever first occurs.
\2\ Applicable only to diesel-cycle vehicles.
(B)(1)(i) Sales percentages for the purposes of determining
compliance with paragraph (a)(1)(i)(A) of this section shall be based on
total actual U.S. sales of light-duty vehicles of the applicable model
year by a manufacturer to a dealer, distributor, fleet operator, broker,
or any other entity which comprises the point of first sale. If the
option of paragraph (a)(1)(i)(A)(3) is taken, such sales percentages
shall be based on the total actual combined U.S. sales of light-duty
vehicles and light light-duty trucks of the applicable model year by a
manufacturer to a dealer, distributor, fleet operator, broker, or any
other entity which comprises the point of first sale.
(ii) The manufacturer may petition the Administrator to allow actual
volume produced for U.S. sale to be used in lieu of actual U.S. sales
for purposes of determining compliance with the implementation schedule
sales percentages of tables H94-8 and H94-11 of this section. Such
petition shall be submitted within 30 days of the end of the model year
to the Manufacturers Operations Division. For the petition to be
granted, the manufacturer must establish to the satisfaction of the
Administrator that actual production volume is functionally equivalent
to actual sales volume.
(iii) The vehicles that are counted toward the implementation
schedule sales percentage, or toward the total on which such percentage
is based, for certification purposes as prescribed by Sec. 86.094-
9(a)(1)(i)(B)(1)(iii) of subpart A of this part, shall be the same
vehicles that are counted toward the implementation schedule sales
percentage, or the total on which it is based, for in-use purposes.
(iv) Small volume manufacturers, as defined in Sec. 86.092-14(b) (1)
and (2), are exempt from the implementation schedules of table H94-8 of
this section for model years 1994 through 1997 and from the
implementation schedules of table H94-11 of this section for model years
1995 and 1996. For small volume manufacturers, Tier 0 standards of
tables H94-9 and H94-10 continue to apply until model year 1998 and the
Tier 0 standards of tables H94-12 and H94-13 continue to apply until
model year 1997, when one hundred percent compliance with the Tier 1
standards of such tables is required. This exemption does not apply to
small volume engine families as defined in Sec. 86.092-14 (b)(5).
(2)(i) For 1994 and 1995 model year light light-duty trucks, the
engine families which comprise the required implementation schedule
percentage of sales meeting Tier 1 standards for HCs, CO, and
NOX, for purposes of certification, shall be the same engine
families which comprise the required implementation schedule percentage
of sales meeting the interim in-use standards
[[Page 57]]
(labeled ``Tier 1I'' in the tables of in-use standards) for
in-use purposes.
(ii) For 1996 and 1997 model year light light-duty trucks, the
engine families which comprise the required implementation schedule
percentage of sales meeting interim in-use standards (labeled ``Tier
1I'' in the tables of in-use standards) and final in-use
standards (labeled ``Tier 1'' in the tables of in-use standards)
respectively, for HCs, CO, and NOX, for in-use purposes,
shall be designated by the manufacturer at the time of certification.
(iii) For 1995 and 1996 model year light light-duty trucks, the
engine families which comprise the required implementation schedule
percentage of sales meeting Tier 1 standards, for PM, for purposes of
certification, shall be the same engine families which comprise the
required implementation schedule percentage of sales meeting the final
in-use standards (labeled ``Tier 1'' in the tables of in-use standards)
for PM for in-use purposes.
(3) The manufacturer must state at the time of Application for
Certification, based on projected U.S. sales or projected production for
U.S. sale, which families will be used to attain the required
implementation schedule sales percentages for in-use purposes.
(4) A manufacturer can not use one set of engine families to meet
its in-use intermediate useful life standards and another to meet its
in-use full useful life standards. The same families which are used to
meet the intermediate useful life standards will be required without
deviation to meet the corresponding full useful life standards.
(ii) Heavy light-duty trucks. In-use exhaust emissions from 1994 and
later model year heavy light-duty trucks shall meet all standards in
tables H94-15 and H94-16 in the rows designated with the applicable fuel
type and loaded vehicle weight or adjusted loaded vehicle weight, as
applicable, according to the implementation schedule in table H94-14,
and shall meet all standards in tables H94-18 and H94-19 in the rows
designated with the applicable fuel type and loaded vehicle weight or
adjusted loaded vehicle weight, as applicable, according to the
implementation schedules in table H94-17, as follows:
(A)(1)(i) For model years 1994 through 1997, a minimum of the
percentage shown in the Tier 1I column of table H94-14 of a
manufacturer's sales of the applicable model year's heavy light-duty
trucks shall not exceed the applicable Tier 1I standards in
tables H94-15 and H94-16. The remaining vehicles, if any, shall not
exceed the applicable Tier 0 standards in tables H94-15 and H94-16.
(ii) For model year 1998, a minimum of the percentage shown in table
H94-14 of a manufacturer's sales of the applicable model year's heavy
light-duty trucks shall not exceed the applicable Tier 1 standards in
tables H94-15 and H94-16. The remaining vehicles shall not exceed the
applicable Tier 1I standards in tables H94-15 and H94-16.
(iii) For model years 1999 and later, a minimum of the percentage
shown in table H94-14 of a manufacturer's sales of the applicable model
year's heavy light-duty trucks shall not exceed the applicable Tier 1
standards in tables H94-15 and H94-16.
(2) Particulates. For in-use exhaust emissions for model year 1994
and later, a minimum of the percentage shown in table H94-17 of a
manufacturer's sales of the applicable model year's heavy light-duty
trucks shall not exceed the applicable Tier 1 standards in tables H94-18
and H94-19. The remaining heavy light-duty trucks, if any, shall not
exceed the applicable Tier 0 standards in tables H94-18 and H94-19.
Table H94-14--Implementation Schedule for Heavy Light-Duty Trucks for
HCs, CO and NOX
------------------------------------------------------------------------
Tier 1I Tier 1
Model year percentage percentage
------------------------------------------------------------------------
1994.......................................... 0% 0%
1995.......................................... 0% 0%
1996.......................................... 50% 0%
1997.......................................... 100% 0%
1998.......................................... 50% 50%
[[Page 58]]
after 1998.................................... 0% 100%
------------------------------------------------------------------------
Table H94-15--Intermediate Useful Life \1\ Standards (g/mi) for Heavy Light-Duty Trucks for HCs, CO and NOX
--------------------------------------------------------------------------------------------------------------------------------------------------------
ALVW
Fuel LVW (lbs) (lbs) Standards THC NMHC THCE NMHCE CO NOX
--------------------------------------------------------------------------------------------------------------------------------------------------------
Gasoline................................... 0-3750 ......... Tier 0................... 0.80 ......... ......... ......... 10 1.2
Gasoline................................... ......... Tier 0................... 0.80 ......... ......... ......... 10 1.7
3750
Gasoline................................... ........... 3751-5750 Tier 1I.................. 0.80 0.40 ......... ......... 5.5 0.88
Gasoline................................... ........... 3751-5750 Tier 1................... 0.80 0.32 ......... ......... 4.4 0.7
Gasoline................................... ........... I.................. 0.80 0.49 ......... ......... 6.2 1.38
q5750
Gasoline................................... ........... ......... Tier 0................... 0.80 ......... ......... ......... 10 1.7
3750
Diesel..................................... 0-3750 3751-5750 Tier 1I.................. 0.80 0.40 ......... ......... 5.5 1.2
Diesel..................................... 3751-5750 Tier 1I.................. 0.80 0.40 ......... ......... 5.5 1.7
3750
Diesel..................................... ........... 3751-5750 Tier 1................... 0.80 0.32 ......... ......... 4.4 0.98
Diesel..................................... 0-3750 I.................. 0.80 0.49 ......... ......... 6.2 1.2
q5750
Diesel..................................... I.................. 0.80 0.49 ......... ......... 6.2 1.7
3750 q5750
Diesel..................................... ........... ......... Tier 0................... 0.80 ......... ......... ......... 10 1.7
3750
Methanol................................... ........... 3751-5750 Tier 1I.................. ......... ......... 0.80 0.40 5.5 0.88
Methanol................................... ........... 3751-5750 Tier 1................... ......... ......... 0.80 0.32 4.4 0.7
Methanol................................... ........... I.................. ......... ......... 0.80 0.49 6.2 1.38
q5750
Methanol................................... ........... ......... Tier 0................... ......... 0.67 ......... ......... 10 1.7
3750
Natural Gas................................ ........... 3751-5750 Tier 1I.................. ......... 0.40 ......... ......... 5.5 0.88
Natural Gas................................ ........... 3751-5750 Tier 1................... ......... 0.32 ......... ......... 4.4 0.7
Natural Gas................................ ........... I.................. ......... 0.49 ......... ......... 6.2 1.38
q5750
Natural Gas................................ ........... ......... Tier 0................... 0.80 ......... ......... ......... 10 1.7
3750
LPG........................................ ........... 3751-5750 Tier 1I.................. 0.80 0.40 ......... ......... 5.5 0.88
LPG........................................ ........... 3751-5750 Tier 1................... 0.80 0.32 ......... ......... 4.4 0.7
LPG........................................ ........... I.................. 0.80 0.49 ......... ......... 6.2 1.38
q5750
LPG........................................ ........... X
--------------------------------------------------------------------------------------------------------------------------------------------------------
ALVW
Fuel LVW (lbs) (lbs) Standards THC \2\ NMHC \1\ THCE \2\ NMHCE \1\ CO \1\ NOX\1\
--------------------------------------------------------------------------------------------------------------------------------------------------------
Gasoline.................................. 0-3750 ......... Tier 0.................. 0.80 ......... ......... ......... 10 1.2
Gasoline.................................. ......... Tier 0.................. 0.80 ......... ......... ......... 10 1.7
3750
Gasoline.................................. ........... 3751-5750 Tier 1.................. 0.80 0.46 ......... ......... 6.4 0.98
Gasoline.................................. ........... ......... Tier 0.................. 0.80 ......... ......... ......... 10 1.7
3750
Diesel.................................... ........... 3751-5750 Tier 1.................. 0.80 0.46 ......... ......... 6.4 0.98
[[Page 59]]
Diesel.................................... ........... ......... Tier 0.................. ......... ......... 0.80 ......... 10 1.7
3750
Methanol.................................. ........... 3751-5750 Tier 1.................. ......... ......... 0.80 0.46 6.4 0.98
Methanol.................................. ........... ......... Tier 0.................. ......... 0.67 ......... ......... 10 1.7
3750
Natural Gas............................... ........... 3751-5750 Tier 1.................. ......... 0.46 ......... ......... 6.4 0.98
Natural Gas............................... ........... ......... Tier 0.................. 0.80 ......... ......... ......... 10 1.7
3750
LPG....................................... ........... 3751-5750 Tier 1.................. 0.80 0.46 ......... ......... 6.4 0.98
LPG....................................... ........... ........... Tier 0....................... .........
3750
Gasoline.................................... ........... 3751-5750 Tier 1....................... 0.10
Gasoline.................................... ........... Tier 1....................... 0.12
5750
Diesel...................................... 0-3750 ........... Tier 0....................... 0.26
Diesel...................................... ........... Tier 0....................... 0.13
3750
Diesel...................................... ........... 3751-5750 Tier 1....................... 0.10
Diesel...................................... ........... Tier 1....................... 0.12
5750
Methanol.................................... 0-3750 ........... Tier 0....................... .........
Methanol.................................... ........... Tier 0....................... .........
3750
Methanol.................................... ........... 3751-5750 Tier 1....................... 0.10
Methanol.................................... ........... Tier 1....................... 0.12
5750
Natural Gas................................. 0-3750 ........... Tier 0....................... \2\ 0.26
Natural Gas................................. ........... Tier 0....................... \2\ 0.13
3750
Natural Gas................................. ........... 3751-5750 Tier 1....................... 0.10
Natural Gas................................. ........... Tier 1....................... 0.12
5750
LPG......................................... 0-3750 ........... Tier 0....................... \2\ 0.26
LPG......................................... ........... Tier 0....................... \2\ 0.13
3750
LPG......................................... ........... 3751-5750 Tier 1....................... 0.10
LPG......................................... ........... Tier 1....................... 0.12
5750
----------------------------------------------------------------------------------------------------------------
\1\ The applicable useful life is 5 years or 50,000 miles, whichever first occurs.
\2\ Applicable only to diesel-cycle vehicles.
Table H94-19--Full Useful Life \1\ Standards (g/mi) for Heavy Light-Duty Trucks for PM
----------------------------------------------------------------------------------------------------------------
Fuel LVW (lbs) ALVW (lbs) Standards PM
----------------------------------------------------------------------------------------------------------------
Gasoline.................................... 0-3750 ........... Tier 0....................... .........
Gasoline.................................... ........... Tier 0....................... .........
3750
Gasoline.................................... ........... 3751-5750 Tier 1....................... 0.10
Gasoline.................................... ........... Tier 1....................... 0.12
5750
Diesel...................................... 0-3750 ........... Tier 0....................... 0.26
Diesel...................................... ........... Tier 0....................... 0.13
3750
[[Page 60]]
Diesel...................................... ........... 3751-5750 Tier 1....................... 0.10
Diesel...................................... ........... Tier 1....................... 0.12
5750
Methanol.................................... 0-3750 ........... Tier 0....................... .........
Methanol.................................... ........... Tier 0....................... .........
3750
Methanol.................................... ........... 3751-5750 Tier 1....................... 0.10
Methanol.................................... ........... Tier 1....................... 0.12
5750
----------------------------------------------------------------------------------------------------------------
\1\ The applicable useful life is 11 years or 120,000 miles, whichever first occurs, except that no enforcement
testing will be done beyond 7 years or 90,000 miles, whichever first occurs.
(B)(1)(i) Sales percentages for the purposes of determining
compliance with paragraph (a)(1)(ii)(A) of this section shall be based
on total actual U.S. sales of light-duty vehicles of the applicable
model year by a manufacturer to a dealer, distributor, fleet operator,
broker, or any other entity which comprises the point of first sale.
(ii) The manufacturer may petition the Administrator to allow actual
volume produced for U.S. sales to be used in lieu of actual U.S. sales
for purposes of determining compliance with the implementation schedule
sales percentages of tables H94-14 and H94-17 of this section. Such
petition shall be submitted within 30 days of the end of the model year
to the Manufacturers Operations Division. For the petition to be
granted, the manufacturer must establish to the satisfaction of the
Administrator that actual production volume is functionally equivalent
to actual sales volume.
(iii) The vehicles that are counted toward the implementation
schedule sales percentage, or toward the total on which such percentage
is based, for certification purposes as prescribed by Sec. 86.094-
9(a)(1)(ii)(B)(1)(iii) of subpart A of this part, shall be the same
vehicles that are counted toward the implementation schedule sales
percentage, or the total on which it is based, for in-use purposes.
(iv) Small volume manufacturers, as defined in Sec. 86.092-14(b) (1)
and (2), are exempt from the implementation schedules of tables H94-14
of this section for model years 1996 through 1998 and from the
implementation schedules of table H94-17 of this section for model year
1996. For small volume manufacturers, Tier 0 standards of tables H94-15
and H94-16 continue to apply until model year 1999 and the Tier 0
standards of tables H94-18 and H94-19 continue to apply until model year
1997, when one hundred percent compliance with the Tier 1 standards of
such tables is required. This exemption does not apply to small volume
engine families as defined in Sec. 86.092-14(b)(5).
(2)(i) For 1996 and 1997 model year heavy light-duty trucks, the
engine families which comprise the required implementation schedule
percentage of sales meeting Tier 1 standards for HCs, CO, and
NOX, for purposes of certification, shall be the same engine
families which comprise the required implementation schedule percentage
of sales meeting the interim in-use standards (labeled ``Tier
1I'' in the tables of in-use standards) for in-use purposes.
(ii) For 1998 model year heavy light-duty trucks the engine families
which comprise the required implementation schedule percentage of sales
meeting interim in-use standards (labeled ``Tier 1I'' in the
tables of in-use standards) and final in-use standards (labeled ``Tier
1'' in the tables of in-use standards) for HCs, CO, and NOX,
for in-use purposes, shall be designated by the manufacturer at the time
of certification.
(iii) For 1996 model year heavy light-duty trucks, the engine
families which comprise the required implementation schedule percentage
of sales meeting Tier 1 standards, for PM, for purposes of
certification, shall be the same engine families which comprise the
required implementation schedule percentage of sales meeting the final
in-use standards (labeled ``Tier 1'' in the tables of in-use standards)
for PM for in-use purposes.
[[Page 61]]
(3) The manufacturer must state at the time of Application for
Certification, based on projected U.S. sales or projected production for
U.S. sale, which families will be used to attain the required
implementation schedule sales percentages.
(4) A manufacturer can not use one set of engine families to meet
its in-use intermediate useful life standards and another to meet its
in-use full useful life standards. The same families which are used to
meet the intermediate useful life standards will be required without
deviation to meet the corresponding full useful life standards.
(iii) Exhaust emissions of carbon monoxide from 1994 and later model
year light-duty trucks shall not exceed 0.50 percent of exhaust gas flow
at curb idle at a useful life of 11 years or 120,000 miles, whichever
first occurs (for Otto-cycle and methanol-fueled diesel-cycle light-duty
trucks only).
(iv)(A) Engine families participating in the applicable
NOX averaging program as specified in Sec. 86.094-
9(a)(1)(iv)(A) shall be subject, for purposes of in-use compliance, to
the NOX family emission limit determined for that engine
family for certification purposes, in lieu of the appropriate
NOX standard shown in the tables of in-use standards in this
section.
(B) Engine families participating in the applicable particulate
averaging program as specified in Sec. 86.094-9(a)(1)(iv)(B) shall be
subject, for purposes of in-use compliance, to the particulate family
emission limit determined for that engine family for certification
purposes, in lieu of the appropriate particulate standard shown in the
tables of in-use standards in this section.
(v) CST emissions from model year 1996 and later gasoline-fueled
Otto-cycle light-duty trucks measured and calculated in accordance with
subpart O of this part may not exceed the standards listed in paragraphs
(a)(1)(v) (A) and (B) of this section.
(A) Hydrocarbons: 220 ppm as hexane.
(B) Carbon monoxide: 1.2 percent.
(2) The standards set forth in paragraphs (a)(1)(i) and (a)(1)(ii)
of this section refer to the exhaust emitted over a driving schedule as
set forth in subpart B of this part and measured and calculated in
accordance with those procedures. The test weight basis for light light-
duty trucks, and for heavy light-duty trucks certified to the Tier 0
standards of this section, for the purposes of determining equivalent
test weight as prescribed in Sec. 86.129-94, shall be loaded vehicle
weight. The test weight basis for heavy light-duty trucks certified to
the Tier 1 or Tier 1I standards of this section, for the
purposes of determining equivalent test weight as prescribed in
Sec. 86.129-94, shall be adjusted loaded vehicle weight. The standard
set forth in paragraph (a)(1)(iii) of this section refers to the exhaust
emitted at curb idle and measured and calculated in accordance with the
procedures set forth in subpart P of this part.
(3) The standards set forth in paragraph (a)(1)(v) of this section
refer to the exhaust emitted during the CST as set forth in subpart O of
this part and measured and calculated in accordance with those
provisions.
(b) The provision of Sec. 86.090-8(b) through (k) of subpart A of
this part apply to this section.
[56 FR 25781, June 5, 1991, as amended at 57 FR 31922, July 17, 1992; 58
FR 33211, June 16, 1993; 58 FR 58424, Nov. 1, 1993; 59 FR 48516, Sept.
21, 1994]