This part is promulgated pursuant to section 4, Land and Water Conservation Fund Act of 1965, 16 U.S.C.A. 4601-6a (Supp., 1974), and section 3, Act of July 11, 1972, 86 Stat. 461. Any Federal recreation fee charged by any bureau of the Department of the Interior shall be charged according to criteria set forth in this part.