The Secretary may disapprove a compact or amendment only if:

(a) It violates:

(1) Any provision of IGRA;

(2) Any other provision of Federal law that does not relate to jurisdiction over gaming on Indian lands; or

(3) The trust obligations of the United States to Indians; or

(b) The documents required in § 293.8 are not submitted and the parties have been informed in writing of the missing documents and are provided with an opportunity to supply those documents.