25 C.F.R. § 293.14 : Indians — BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR — ECONOMIC ENTERPRISES — CLASS III TRIBAL STATE GAMING COMPACT PROCESS — When may the Secretary disapprove a compact or amendment?

The Secretary may disapprove a compact or amendment only if it violates:

(a) Any provision of the Indian Gaming Regulatory Act;
(b) Any other provision of Federal law that does not relate to jurisdiction over gaming on Indian lands; or
(c) The trust obligations of the United States to Indians.

25 C.F.R. § 293.14