(1) A child custody proceeding that pertains to an Indian child as defined in the federal Indian child welfare act, 25 U.S.C. § 1901 et seq., is not subject to this chapter to the extent that it is governed by the federal Indian child welfare act.
(2) A court of this state shall treat a tribe as if it were a state of the United States for the purpose of applying Articles 1 and 2.
(3) A child custody determination made by a tribe under factual circumstances in substantial conformity with the jurisdictional standards of this chapter must be recognized and enforced under Article 3.