In subsec. (b), “section 100506(c) of title 54” substituted for “section 7(c) of the Land and Water Conservation Fund Act of 1965 (16 U.S.C. 460l–9(c))” on authority of Pub. L. 113–287, § 6(e), Dec. 19, 2014, 128 Stat. 3272, which Act enacted Title 54, National Park Service and Related Programs.