Code of Federal Regulations Title 25. Indians § 25.262.3 Consultation to determine need for a permit

(1) Write to the head of each tribal government having jurisdiction over the lands where investigations are to be conducted and request that he or she provide, within 30 days, written information on any permit, license or other form of authorization the tribe might require for the work proposed;  and

(2) Provide the BIA Area Director with a copy of the tribe's written response (or a copy of the request to the tribe if 30 days have elapsed without any response) plus a brief but clear written description of the proposed work and obtain his or her written determination as to whether or not a permit under the Act is required. Area Directors shall provide determinations within 10 working days after receiving such documentation.