Section 403.5317 - Postcertification activities(1)(a) If, subsequent to certification, a licensee proposes any material change to the application or prior amendments, the licensee shall submit to the department a written request for amendment and description of the proposed change to the application. The department shall, within 30 days after the receipt of the request for the amendment, determine whether the proposed change to the application requires a modification of the conditions of certification.(b) If the department concludes that the change would not require a modification of the conditions of certification, the department shall notify, in writing, the licensee, all agencies, and all parties of the approval of the amendment.(c) If the department concludes that the change would require a modification of the conditions of certification, the department shall notify the licensee that the proposed change to the application requires a request for modification under s. 403.5315.(2) Postcertification submittals filed by a licensee with one or more agencies are for the purpose of monitoring for compliance with the issued certification. Each submittal must be reviewed by each agency on an expedited and priority basis because each facility certified under this act is a critical infrastructure facility. Postcertification review may not be completed more than 90 days after complete information for a segment of the certified transmission line is submitted to the reviewing agencies.