A Special Flood Hazard Area (SFHA) is an area identified by the United States Federal Emergency Management Agency (FEMA) as an area with a special flood or mudflow, and/or flood related erosion hazard, as shown on a flood hazard boundary map or flood insurance rate map.[1] Areas within the SFHA are designated on the flood insurance rate map as Zone A, AO, A1-A30, AE, A99, AH, AR, AR/A, AR/AE, AR/AH, AR/AO, AR/A1-A30, V1-V30 or V.[2]
Land areas that are at high risk for flooding are called special flood hazard areas (SFHAs), or floodplains. These areas are indicated on flood insurance rate maps (FIRMs).
In high-risk areas, there is at least a 1 in 4 chance of flooding during a 30-year mortgage.
^United States of America (2002). Code of Federal Regulations 44, Emergency Management and Assistance(PDF). United States Government Printing Office. pp. 313–315.
^"Definitions of FEMA Flood Zone Designations". Federal Emergency Management Agency. Retrieved January 25, 2013.
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