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Grandfathering

An exemption based on circumstances previously existing.

• Under NFIP statutory grandfathering, buildings located in Emergency Program communities and Pre-FIRM buildings in the Regular Program are eligible for subsidized flood insurance rates.
• Under NFIP administrative grandfathering, Post-FIRM buildings in the Regular Program built in compliance with the floodplain management regulations in effect at the start of construction will continue to have favorable rate treatment even though higher Base Flood Elevations (BFEs) or more restrictive, greater risk zone designations result from Flood Insurance Rate Map (FIRM) revisions. Policyholders who have remained loyal customers of the NFIP by maintaining continuous coverage (since coverage was first obtained on the building) are also eligible for administrative grandfathering.