25 C.F.R. § 87.12
A timetable prepared in cooperation with the tribal governing body shall be included in the plan submitted by the Secretary for the implementation of all programming and enrollment aspects of a plan. At any time within one calendar year after the approval date of a plan, the Area Director shall report to the Commissioner on the status of the implementation of the plan, including all enrollment and programming aspects, and thenceforth shall report to the Commissioner on an annual basis regarding any remaining or unfulfilled aspects of a plan. The Area Director shall include in his first and all subsequent annual reports a statement regarding the maintenance of the timetable, a full accounting of any per capita distribution, and the expenditure of all programming funds. The Commissioner shall report the deficient performance of any aspect of a plan to the Secretary, together with the corrective measures he has taken or intends to take.
25 C.F.R. § 87.12