25 C.F.R. § 900.143 How is a waiver request processed?
Title 25 - Indians
The Secretary shall approve or deny a waiver within 90 days after the Secretary receives a written waiver request. The Secretary's decision shall be in writing. If the requested waiver is denied, the Secretary shall include in the decision a full explanation of the basis for the decision.
Title 25: Indians
PART 900—CONTRACTS UNDER THE INDIAN SELF-DETERMINATION AND EDUCATION ASSISTANCE ACT
Subpart K—Waiver Procedures
§ 900.143 How is a waiver request processed?