25 CFR § 522.6 - Approval requirements for class III ordinances.
No later than 90 days after the submission to the Chairman under § 522.2 of this part, the Chairman shall approve the class III ordinance or resolution if -
(a) A tribe follows the submission requirements contained in § 522.2 of this part;
(b) The ordinance or resolution meets the requirements contained in § 522.4(b) (2), (3), (4), (5), (6), and (7) of this part; and
(c) The tribe shall have the sole proprietary interest in and responsibility for the conduct of any gaming operation unless it elects to allow individually owned gaming under § 522.10 of this part.