The Elevation Certificate is an important administrative tool of the NFIP. It is to be used to provide elevation information necessary to ensure compliance with community floodplain management ordinances, to determine the proper insurance premium rate, and to support a request for a Letter of Map Amendment (LOMA) or Letter of Map Revision based on Fill (LOMR-F). The Elevation Certificate is required in order to properly rate Post-FIRM buildings, which are buildings constructed after publication of the FIRM located in Flood Zones. The Elevation Certificate is not required for Pre-FIRM buildings unless the building is being rated under the optional Post-FIRM flood insurance rules. Use of this certificate does not provide a waiver of the flood insurance purchase requirement.