Technical Bulletin 0, User's Guide to NFIP Technical Bulletins

The NFIP Technical Bulletins provide guidelines for various aspects of floodproofing and flood-resistant construction in flood-prone areas. These technical bulletins cover subjects such as requirements for dry floodproofing non-residential buildings, design and certification of dry floodproofing below-grade parking areas, corrosion protection for metal connectors in coastal areas, free-of-obstruction requirements for structures in coastal high hazard areas, and design and construction guidance for breakaway walls in coastal high hazard areas. The bulletins also discuss key concepts such as special flood hazard areas, lowest floor, substantial improvement, open foundations in Zone V, and mitigation techniques for flood-prone buildings.