16 U.S.C. § 432
Section, act June 8, 1906ch. 3060, §§3June 8, 1906, 4June 8, 1906, 34 Stat. 225; July 26, 1947, ch. 343, title II, §205(a), 61 Stat. 501, related to permits to examine ruins, excavations, and gathering of objects; regulations. See sections 320302 and 320303 of Title 54, National Park Service and Related Programs.