A building constructed after the effective date of the first Flood Insurance Rate Map for a community. Post-FIRM buildings are required to meet floodplain management regulations, including elevation requirements, and typically have lower flood risk than Pre-FIRM structures. Flood insurance rates for Post-FIRM buildings are based on actuarial risk and are generally lower than Pre-FIRM rates if the building is properly elevated. These buildings must have an Elevation Certificate to document compliance with local regulations. Post-FIRM construction standards significantly reduce flood damage and insurance costs compared to older, non-compliant structures.