Section, Pub. L. 86–523, § 1, June 27, 1960, 74 Stat. 220; Pub. L. 93–291, § 1(1), May 24, 1974, 88 Stat. 174, which stated purpose of former sections 469 to 469c–1 of this title, was omitted from the Code following the enactment of Title 54, National Park Service and Related Programs, by Pub. L. 113–287.