[Code of Federal Regulations]
[Title 40, Volume 29]
[Revised as of July 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR600.007-80]

[Page 873-874]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 600_FUEL ECONOMY OF MOTOR VEHICLES--Table of Contents
 
    Subpart A_Fuel Economy Regulations for 1977 and Later Model Year 
                     Automobiles_General Provisions
 
Sec. 600.007-80  Vehicle acceptability.

    (a) All certification vehicles and other vehicles tested to meet the 
requirements of 40 CFR part 86 (other than those chosen per 40 CFR 
86.080-24(c) or 40 CFR 86.1829-01(a) as applicable, are considered to 
have met the requirements of this section.
    (b) Any vehicle not meeting the provisions of paragraph (a) must be 
judged acceptable by the Administrator under this section in order for 
the test results to be reviewed for use in subpart C or F of this part. 
The Administrator will judge the acceptability of a fuel economy data 
vehicle on the basis of the information supplied by the manufacturer 
under Sec. 600.006(b). The criteria to be met are:
    (1) A fuel economy data vehicle may have accumulated not more than 
10,000 miles. A vehicle will be considered to have met this requirement 
if the engine and drivetrain have accumulated 10,000 or fewer miles. The 
components installed for a fuel economy test are not required to be the 
ones with which the mileage was accumulated, e.g., axles, transmission 
types, and tire sizes may be changed. The Administrator will determine 
if vehicle/engine component changes are acceptable.
    (2) A vehicle may be tested in different vehicle configurations by 
change of vehicle components, as specified in paragraph (b)(1) of this 
section, or by testing in different inertia weight classes. Also, a 
single vehicle may be tested under different test conditions, i.e., test 
weight and/or road load horsepower, to generate fuel economy data 
representing various situations within a vehicle configuration. For 
purposes of this part, data generated by a single vehicle tested in 
various test conditions will be treated as if the data were generated by 
the testing of multiple vehicles.
    (3) The mileage on a fuel economy data vehicle must be, to the 
extent possible, accumulated according to 40 CFR 86.079-26(a)(2) or 40 
CFR 86.1831-01 as applicable.
    (4) Each fuel economy data vehicle must meet the same exhaust 
emission standards as certification vehicles of the respective engine-
system combination during the test in which the city fuel economy test 
results are generated. The deterioration factors established for the 
respective engine-system combination per Sec. 86.079-28 or Sec. 
86.1841-01 as applicable will be used.
    (5) The calibration information submitted under Sec. 600.006(b) 
must be representative of the vehicle configuration for which the fuel 
economy data were submitted.
    (6) Any vehicle tested for fuel economy purposes must be 
representative of a vehicle which the manufacturer intends to produce 
under the provisions of a certificate of conformity.

[[Page 874]]

    (7) For vehicles imported under Sec. 85.1509 or Sec. 85.1511 
(b)(2), (b)(4), (c)(2), (c)(4), or (e)(2) (when applicable) only the 
following requirements must be met:
    (i) For vehicles imported under Sec. 85.1509, a highway fuel 
economy value must be generated contemporaneously with the emission test 
used for purposes of demonstrating compliance with Sec. 85.1509. No 
modifications or adjustments should be made to the vehicles between the 
highway fuel economy and the FTP emissions test.
    (ii) For vehicles imported under Sec. 85.1509 or Sec. 85.1511 
(b)(2), (b)(4), (c)(2), (c)(4) or (e)(2) (when applicable) with over 
10,000 miles, the equation in Sec. 600.006-86 (g)(1) shall be used as 
though only 10,000 miles had been accumulated.
    (iii) Any required fuel economy testing must take place after any 
safety modifications are completed for each vehicle as required by 
regulations of the Department of Transportation.
    (iv) Every vehicle imported under Sec. 85.1509 or Sec. 85.1511 
(b)(2), (b)(4), (c)(2), (c)(4) or (e)(2) (when applicable) shall be 
considered a separate type for the purposes of calculating a fuel 
economy label for a manufacturer's average fuel economy.
    (c) If, based on review of the information submitted under Sec. 
600.006(b), the Administrator determines that a fuel economy data 
vehicle meets the requirements of this section, the fuel economy data 
vehicle will be judged to be acceptable and fuel economy data from that 
fuel economy data vehicle will be reviewed pursuant to Sec. 600.008.
    (d) If, based on the review of the information submitted under Sec. 
600.006(b), the Administrator determines that a fuel economy data 
vehicle does not meet the requirements of this section, the 
Administrator will reject that fuel economy data vehicle and inform the 
manufacturer of the rejection in writing.
    (e) If, based on a review of the emission data for a fuel economy 
data vehicle, submitted under Sec. 600.006(b), or emission data 
generated by a vehicle tested under Sec. 600.008(e), the Administrator 
finds an indication of non-compliance with section 202 of the Clean Air 
Act, 42 U.S.C. 1857 et seq. of the regulation thereunder, he may take 
such investigative actions as are appropriate to determine to what 
extent emission non-compliance actually exists.
    (1) The Administrator may, under the provisions of 40 CFR 86.079-
37(a) or 40 CFR 86.1830-01 as applicable, request the manufacturer to 
submit production vehicles of the configuration(s) specified by the 
Administrator for testing to determine to what extent emission 
noncompliance of a production vehicle configuration or of a group of 
production vehicle configurations may actually exist.
    (2) If the Administrator determines, as a result of his 
investigation, that substantial emission non-compliance is exhibited by 
a production vehicle configuration or group of production vehicle 
configurations, he may proceed with respect to the vehicle 
configuration(s) as provided under section 206(b)(2) or section 
207(c)(1), as applicable of the Clean Air Act, 42 U.S.C. 1857 et seq.
    (f) All vehicles used to generate fuel economy data, and for which 
emission standards apply, must be covered by a certificate of conformity 
under part 86 of this chapter before:
    (1) The data may be used in the calculation of any approved general 
or specific label value, or
    (2) The data will be used in any calculations under subpart F, 
except that vehicles imported under Sec. Sec. 85.1509 and 85.1511 need 
not be covered by a certificate of conformity.

[42 FR 45657, Sept. 12, 1977, as amended at 43 FR 52928, Nov. 14, 1978; 
49 FR 48149, Dec. 10, 1984; 52 FR 36164, Sept. 25, 1987; 59 FR 39652, 
Aug. 3, 1994; 64 FR 23973, May 4, 1999]