; or (ii) is inadequate to remedy the problems identified in the annual examination to which the plan of action relates, the Assistant Administrator shall set forth the reasons in writing and provide the determination to the eligible entity not later than 15 calendar days after the date of 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 the plan to the Assistant Administrator. (D) Amended plan review by the Assistant Administrator Not later than 15 calendar days after receipt of an amended plan of action under subparagraph (C), the Assistant Administrator shall approve or reject the plan and provide the 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 of action under subparagraph (D), the eligible entity shall have the opportunity to appeal the decision to the Administrator, who may delegate the appeal to an appropriate officer of the Administration. (ii) Opportunity for explanation Any appeal described in clause (i) shall provide an opportunity for the eligible entity to provide, in writing, an explanation of why the amended plan of action of the eligible entity remedies the problems identified in the annual examination conducted under paragraph (2)(B). (iii) Notice of determination The Administrator shall provide to the eligible entity a determination of the appeal, in writing, not later than 15 calendar days after the eligible entity files an appeal under this subparagraph. (iv) Effect of failure to act If the Administrator fails to act on an appeal made under this subparagraph within the 15-day period specified under clause (iii), the amended plan of action of the eligible entity submitted under subparagraph (C) shall be deemed to be