; and (II) submit additional supporting materials substantiating an updated cost estimate submitted under subclause (I). (C) Mitigation of burden In developing the application process under this paragraph, the Commission shall take reasonable steps to mitigate the administrative burdens and costs associated with the application process, while taking into account the need to avoid waste, fraud, and abuse in the Program. (4) Application review process (A) Deadline (i) In general Except as provided in clause (ii) and subparagraph (B), the Commission shall approve or deny an application for a reimbursement under the Program not later than 90 days after the date of the submission of the application. (ii) Additional time needed by Commission If the Commission determines that, because an excessive number of applications have been filed at one time, the Commission needs additional time for employees of the Commission to process the applications, the Commission may extend the deadline described in clause (i) for not more than 45 days. (B) Opportunity for applicant to cure deficiency If the Commission determines that an application is materially deficient (including by lacking an adequate cost estimate or adequate supporting materials), the Commission shall provide the applicant a 15-day period to cure the defect before denying the application. If such period would extend beyond the deadline under subparagraph (A) for approving or denying the application, such deadline shall be extended through the end of such period. (C) Effect of denial Denial of an application for a reimbursement under the Program shall not preclude the applicant from resubmitting the application or submitting a new application for a reimbursement under the Program at a later date. (5) Certifications An applicant for a reimbursement under the Program shall, in the application of such applicant, certify to the Commission that— (A) beginning on the date of the submission of the application, the applicant will not purchase, rent, lease, or otherwise obtain