authority: Public Law 95-471, Oct. 17, 1978, 92 Stat. 1325; amended Public Law 98-192, Dec. 1, 1983, 97 Stat. 1335; Public Law 99-428, Sept. 30, 1986, 100 Stat. 982; Public Law 105-244, Oct. 7, 1998, 112 Stat. 1619; Public Law 110-315, Aug. 14, 2008, 122 Stat. 3460;
25 U.S.C. 1801