Section,
Pub. L. 92–513, title V, § 503, as added
Pub. L. 94–163, title III, § 301, Dec. 22, 1975,
89 Stat. 906; amended
Pub. L. 96–185, § 18, Jan. 7, 1980,
93 Stat. 1336; H. Res. 549, Mar. 25, 1980;
Pub. L. 96–425, §§ 4(a)(1), (b), (c)(2), (3),
8
(e), Oct. 10, 1980,
94 Stat. 1822, 1824, 1825, 1829;
Pub. L. 98–620, title IV, § 402(18), Nov. 8, 1984,
98 Stat. 3358;
Pub. L. 103–182, title III, § 371, Dec. 8, 1993,
107 Stat. 2127, related to calculation of average fuel economy. See sections
32901 and
32904 of Title
49, Transportation.