Section, Pub. L. 89–665, title III, § 307, as added Pub. L. 96–515, title V, § 501, Dec. 12, 1980, 94 Stat. 3004; amended Pub. L. 103–437, § 6(d)(29), Nov. 2, 1994, 108 Stat. 4584; Pub. L. 104–333, div. I, title VIII, § 814(d)(1)(O), (2)(E), Nov. 12, 1996, 110 Stat. 4196; Pub. L. 106–176, title I, § 120(a)(2), Mar. 10, 2000, 114 Stat. 28; Pub. L. 106–208, § 5(a)(11)–(13), May 26, 2000, 114 Stat. 319, related to effective date of regulations. See section 307102 of Title 54, National Park Service and Related Programs.