Pub. L. 108-204, tit. I, subtit. A, sec. 103
TRIBAL SOVEREIGNTY.
SEC. 103. TRIBAL SOVEREIGNTY. Section 16 of the Act of June 18, 1934 (25 U.S.C. 476), is amended by adding at the end the following:“(h) Tribal Sovereignty.—Notwithstanding any other provision of this Act—“(1) each Indian tribe shall retain inherent sovereign power to adopt governing documents under procedures other than those specified in this section; and“(2) nothing in this Act invalidates any constitution or other governing document adopted by an Indian tribe after June 18, 1934, in accordance with the authority described in paragraph (1).”.