authority: Sec. 4, Act of May 11, 1938 (52 Stat. 347); Act of August 1, 1956 (70 Stat. 744);
25 U.S.C. 396a-g;
25 U.S.C. 2 and 9; and Sec. 701, Pub. L. 114-74, 129 Stat. 599, unless otherwise noted
source: 61 FR 35653, July 8, 1996, unless otherwise noted.