25 CFR § 11.108
How are tribal ordinances affected by this part?
February 24, 2021
The governing body of each tribe occupying the Indian country over which a Court of Indian Offenses has jurisdiction may enact ordinances which, when approved by the Assistant Secretary—Indian Affairs or his or her designee:
(a) Are enforceable in the Court of Indian Offenses having jurisdiction over the Indian country occupied by that tribe; and
(b) Supersede any conflicting regulation in this part.