In subsec. (a), “section 60501 of title 49” substituted for reference to section 306 of this Act, meaning section 306 of Pub. L. 95–91 [42 U.S.C. 7155], and “section 60502 of title 49” substituted for reference to section 402(b), meaning section 402(b) of Pub. L. 95–91 [42 U.S.C. 7172(b)] on authority of Pub. L. 103–272, § 6(b), July 5, 1994, 108 Stat. 1378, the first section of which enacted subtitles II, III, and V to X of Title 49, Transportation.