Mo. Rev. Stat. § 452.715: Application to Indian tribes.

1. A child custody proceeding that pertains to an Indian child, as defined in the Indian Child Welfare Act, 25 U.S.C. Section 1901, et seq., is not subject to sections 452.700 to 452.930 to the extent that it is governed by the Indian Child Welfare Act.

2. A court of this state shall treat a tribe as a state of the United States for purposes of sections 452.700 to 452.930.

3. A child custody determination made by a tribe under factual circumstances in substantial conformity with the jurisdictional standards of sections 452.700 to 452.930 shall be recognized and enforced under the provisions of sections 452.850 to 452.915.