; review of decision (a) In general The Secretary shall have exclusive authority to approve or disapprove a plan submitted by an Indian tribe in accordance with section 6. (b) Approval process (1) In general Not later than 90 days after the date on which the Secretary receives a plan, the Secretary shall, after coordinating with the Secretary of each Federal agency providing funds to be used to implement the plan, approve or deny the plan. (2) Approval If the Secretary approves a plan under paragraph (1), the Secretary shall authorize the transfer of program funds identified in the plan in accordance with section 13. (3) Denial If the Secretary denies the plan under paragraph (1), the Secretary shall provide to the Indian tribe a written notification of disapproval of the plan that contains a specific finding that clearly demonstrates, or that is supported by a controlling legal authority, that the plan does not meet the requirements described in section 6. (4) Partial Approval (A) In general If a plan is denied under paragraph (3) solely on the basis that a request for a waiver that is part of the plan has not been approved (or is subject to dispute resolution) under section 7, the Secretary shall, upon a request from the tribe, grant partial approval for those portions of the plan not affected by the request for a waiver. (B) Approval after resolution With respect to a plan described in subparagraph (A), on resolution of the request for a waiver under section 7, the Secretary shall, on a request from the tribe, approve the plan or amended plan not later than 90 days after the date on which the Secretary receives the request. (5) Failure to Act If the Secretary does not make a decision under paragraph (1) within 90 days of the date on which the Secretary receives the plan, the plan shall be considered to be approved. (c) Extension of time Notwithstanding any other provision of law, the Secretary may extend or otherwise alter the 90-day period identified in subsection (b)(1) for not more than 90 additional days,