42 U.S. Code § 7525 - Motor vehicle and motor vehicle engine compliance testing and certification
For purposes of enforcement of this section, officers or employees duly designated by the Administrator, upon presenting appropriate credentials to the manufacturer or person in charge, are authorized (1) to enter, at reasonable times, any plant or other establishment of such manufacturer, for the purpose of conducting tests of vehicles or engines in the hands of the manufacturer, or (2) to inspect, at reasonable times, records, files, papers, processes, controls, and facilities used by such manufacturer in conducting tests under regulations of the Administrator. Each such inspection shall be commenced and completed with reasonable promptness.
The Administrator shall by regulation establish methods and procedures for making tests under this section.
The Administrator shall make available to the public the results of his tests of any motor vehicle or motor vehicle engine submitted by a manufacturer under subsection (a) as promptly as possible after December 31, 1970, and at the beginning of each model year which begins thereafter. Such results shall be described in such nontechnical manner as will reasonably disclose to prospective ultimate purchasers of new motor vehicles and new motor vehicle engines the comparative performance of the vehicles and engines tested in meeting the standards prescribed under section 7521 of this title.
Within 18 months after November 15, 1990, the Administrator shall review and revise as necessary the regulations under subsection  (a) and (b) of this section regarding the testing of motor vehicles and motor vehicle engines to insure that vehicles are tested under circumstances which reflect the actual current driving conditions under which motor vehicles are used, including conditions relating to fuel, temperature, acceleration, and altitude.
 So in original. Probably should be “light-duty”.
 See References in Text note below.
 So in original. Probably should be “subsections”.
Section 7542 of this title, referred to in subsec. (g)(5), was amended generally by Pub. L. 101–549, title II, § 211, Nov. 15, 1990, 104 Stat. 2487, and provisions formerly contained in section 7542(b) of this title are contained in section 7542(c).
Section was formerly classified to section 1857f–5 of this title.
2015—Subsec. (a)(5). Pub. L. 114–94 added par. (5).
1990—Subsec. (a)(1). Pub. L. 101–549, § 208(b), inserted new third sentence and struck out former third sentence which read as follows: “In the case of any manufacturer of vehicles or vehicle engines whose projected sales in the United States for any model year (as determined by the Administrator) will not exceed three hundred, the regulations prescribed by the Administrator concerning testing by the manufacturer for purposes of determining compliance with regulations under section 7521 of this title for the useful life of the vehicle or engine shall not require operation of any vehicle or engine manufactured during such model year for more than five thousand miles or one hundred and sixty hours, respectively, but the Administrator shall apply such adjustment factors as he deems appropriate to assure that each such vehicle or engine will comply during its useful life (as determined under section 7521(d) of this title) with the regulations prescribed under section 7521 of this title.”
Subsec. (a)(4). Pub. L. 101–549, § 208(a), added par. (4).
Subsec. (e). Pub. L. 101–549, § 230(7), struck out “announce in the Federal Register and” after “The Administrator shall”.
Subsec. (f). Pub. L. 101–549, § 230(8), struck out par. (1) designation before “All light duty vehicles”, inserted reference to all light-duty trucks manufactured during or after model year 1995, and struck out par. (2) which required the Administrator to report to Congress by Oct. 1, 1978, on the economic impact and technological feasibility of the requirements of former par. (1).
Subsec. (h). Pub. L. 101–549, § 208(c), added subsec. (h).
1977—Subsec. (a)(1). Pub. L. 95–95, § 220, inserted provisions covering testing by small manufacturers.
Subsec. (a)(3). Pub. L. 95–95, § 214(b), added par. (3).
Subsec. (b)(2)(A)(i). Pub. L. 95–95, § 214(c)(1), (2), substituted “certificate of conformity was issued and with the requirements of section 7521(a)(4) of this title, he may suspend” for “certificate of conformity was issued, he may suspend” and “such regulations and requirements” for “such regulations”.
Subsec. (b)(2)(A)(ii). Pub. L. 95–95, § 214(c)(2), substituted “such regulations and requirements” for “such regulations”.
Subsec. (f). Pub. L. 95–95, § 213(a), added subsec. (f).
Subsec. (g). Pub. L. 95–95, § 224(e), added subsec. (g).
Subsec. (g)(3)(D). Pub. L. 95–190 inserted “shall” before “be”.
All rules, regulations, orders, determinations, contracts, certifications, authorizations, delegations, or other actions duly issued, made, or taken by or pursuant to act July 14, 1955, the Clean Air Act, as in effect immediately prior to the date of enactment of Pub. L. 95–95 [Aug. 7, 1977] to continue in full force and effect until modified or rescinded in accordance with act July 14, 1955, as amended by Pub. L. 95–95 [this chapter], see section 406(b) of Pub. L. 95–95, set out as an Effective Date of 1977 Amendment note under section 7401 of this title.
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