[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: 40CFR600.007-08]

[Page 871-873]
 
                   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. 600.007-08  Vehicle acceptability.

    (a) All certification vehicles and other vehicles tested to meet the 
requirements of part 86 of this chapter (other than those chosen per 
Sec. 86.1829-01(a) of this chapter), are considered to have met the 
requirements of this section.
    (b) Any vehicle not meeting the provisions of paragraph (a) of this 
section must be judged acceptable by the Administrator under this 
section in order for the test results to be reviewed for

[[Page 872]]

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 Sec. 86.1831 of this chapter.
    (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. 86.1841-01 of this 
chapter 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.
    (7) For vehicles imported under Sec. 85.1509 or Sec. 
85.1511(b)(2), (b)(4), (c)(2), (c)(4) of this chapter, or (e)(2) (when 
applicable) only the following requirements must be met:
    (i) For vehicles imported under Sec. 85.1509 of this chapter, a 
highway fuel economy value must be generated contemporaneously with the 
emission tests used for purposes of demonstrating compliance with Sec. 
85.1509 of this chapter. No modifications or adjustments should be made 
to the vehicles between the highway fuel economy, FTP, US06, SC03 and 
Cold temperature FTP tests.
    (ii) For vehicles imported under Sec. 85.1509 or Sec. 
85.1511(b)(2), (b)(4), (c)(2), or (c)(4) of this chapter (when 
applicable) with over 10,000 miles, the equation in Sec. 600.006-
08(g)(3) 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), or (c)(4) of this chapter (when 
applicable) must 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

[[Page 873]]

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 Sec. 86.1830-01 
of this chapter, 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 Sec. 600.206(b)(2) or Sec. 
600.207(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 of 
this chapter need not be covered by a certificate of conformity.

[71 FR 77930, Dec. 27, 2006]