[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: 40CFR86.609-97]

[Page 32]
 
                   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 G--Selective Enforcement Auditing of New Light-Duty Vehicles
 
Sec. 86.609-97  Calculation and reporting of test results.

    Section 86.609-97 includes text that specifies requirements that 
differ from those specified in Secs. 86.609-84 and 86.609-96. Where a 
paragraph in Sec. 86.609-84 or Sec. 86.609-96 is identical and 
applicable to Sec. 86.609-97, this may be indicated by specifying the 
corresponding paragraph and the statement ``[Reserved]. For guidance see 
Sec. 86.609-84.'' or ``[Reserved]. For guidance see Sec. 86.609-96.''
    (a) through (b) [Reserved]. For guidance see Sec. 86.609-96.
    (c) Final deteriorated test results--(1) For each test vehicle. The 
final deteriorated test results for each test vehicle tested according 
to subpart B, subpart C, or subpart R of this part are calculated by 
first multiplying or adding, as appropriate, the final test results by 
or to the appropriate deterioration factor derived from the 
certification process for the engine or evaporative/refueling family and 
model year to which the selected configuration belongs, and then by 
multiplying by the appropriate reactivity adjustment factor, if 
applicable, and rounding to the same number of decimal places contained 
in the applicable emission standard. Rounding is done in accordance with 
the Rounding-Off Method specified in ASTM E29-90, Standard Practice for 
Using Significant Digits in Test Data to Determine Conformance with 
Specifications. This procedure is incorporated by reference (see 
Sec. 86.1). For the purpose of this paragraph (c), if a multiplicative 
deterioration factor as computed during the certification process is 
less than one, that deterioration factor is one. If an additive 
deterioration factor as computed during the certification process is 
less than zero, that deterioration factor will be zero.
    (c)(2) [Reserved]. For guidance see Sec. 86.609-96.
    (d) [Reserved]. For guidance see Sec. 86.609-84.

[62 FR 31235, June 6, 1997]