; (ii) if the Assistant Administrator determines that such plan is inadequate to remedy the problems identified in the annual review to which the plan of action relates, the Assistant Administrator shall set forth such reasons in writing and provide such determination to the eligible entity within 15 calendar days of such determination. (C) Amendment to plan of action An eligible entity receiving a determination under subparagraph (B)(ii) shall have 30 calendar days from the receipt of the determination to amend the plan of action to satisfy the problems identified by the Assistant Administrator and resubmit such plan to the Assistant Administrator. (D) Amended plan review by the Assistant Administrator Within 15 calendar days of the receipt of an amended plan of action under subparagraph (C), the Assistant Administrator shall either approve or reject such plan and provide such approval or rejection in writing to the eligible entity. (E) Appeal of Assistant Administrator determination (i) In general If the Assistant Administrator rejects an amended plan under subparagraph (D), the eligible entity shall have the opportunity to appeal such decision to the Administrator, who may delegate such appeal to an appropriate officer of the Administration. (ii) Opportunity for explanation Any appeal described under clause (i) shall provide an opportunity for the eligible entity to provide, in writing, an explanation of why the eligible entity’s plan remedies the problems identified in the annual review. (iii) Notice of determination The determination of the appeal shall be provided to the eligible entity, in writing, within 15 calendar days from the eligible entity’s filing of the appeal. (iv) Effect of failure to act If the Administrator fails to act on an appeal made under this subparagraph within the 15 calendar day period specified under clause (iii), the eligible entity’s amended plan of action submitted under subparagraph (C) shall be deemed to be approved. (8) Termination of Grant (A) In general The Administrator