Section 2001, Pub. L. 92–513, title V, § 501, as added Pub. L. 94–163, title III, § 301, Dec. 22, 1975, 89 Stat. 901; amended Pub. L. 96–425, §§ 4(c)(1), 8(b), Oct. 10, 1980, 94 Stat. 1824, 1828; Pub. L. 100–494, § 6(b), Oct. 14, 1988, 102 Stat. 2452; Pub. L. 102–486, title IV, § 403(1), Oct. 24, 1992, 106 Stat. 2876, defined terms for purposes of this subchapter. See section 32901 of Title 49, Transportation.

Section 2002, Pub. L. 92–513, title V, § 502, as added Pub. L. 94–163, title III, § 301, Dec. 22, 1975, 89 Stat. 902; amended Pub. L. 95–91, title III, § 305, Aug. 4, 1977, 91 Stat. 580; Pub. L. 96–425, §§ 3(a)(1), 5, 6(b), 7, 8(c), (d), Oct. 10, 1980, 94 Stat. 1821, 1825, 1826, 1828; Pub. L. 100–494, § 6(c), Oct. 14, 1988, 102 Stat. 2452; Pub. L. 102–486, title IV, § 403(2), Oct. 24, 1992, 106 Stat. 2876, related to average fuel economy standards. See sections 32902, 32903, and 32916 of Title 49.