25 U.S. Code § 1300n–1 - Definitions
For purposes of this subchapter:
(3) The term “Interim Tribal Council” means the governing body of the Tribe specified in section 1300n–5 of this title.
(4) The term “member” means an individual who meets the membership criteria under section 1300n–4 (b) of this title.
(6) The term “reservation” means those lands acquired and held in trust by the Secretary for the benefit of the Tribe.