ASCE/SEI Standard 24-05 provides minimum requirements for flood-resistant design and construction of structures located in flood hazard areas. This standard applies to new construction, which includes: new structures including subsequent work to such structures, and work classified as substantial repair or substantial improvement of an existing structure that is not an historic structure. This Standard is a revision of ""ASCE/SEI 24-98"". Topics covered include: Basic Requirements for Flood Hazard Areas; High Risk Flood Hazard Areas; Coastal High Hazard Areas and Coastal A Zones; Materials; Dry and Wet Flood Proofing; Utilities; Building Access; and Miscellaneous Construction.