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.