(a) A child custody proceeding that pertains to an Indian child as defined in the Indian Child Welfare Act (25 U.S.C. Sec. 1901 et seq.) is not subject to this part to the extent that it is governed by the Indian Child Welfare Act.
(b) A court of this state shall treat a tribe as if it were a state of the United States for the purpose of applying this chapter and Chapter 2 (commencing with Section 3421).
(c) A child custody determination made by a tribe under factual circumstances in substantial conformity with the jurisdictional standards of this part must be recognized and enforced under Chapter 3 (commencing with Section 3441).