There are 6 flood zone designations. Some zones have multiple sub-designations, as follows:
Zone “A” (and its sub-designations: AE, AH, AO and A1-A99)
These are Special Flood Hazard Areas where flooding may be expected to occur at least once within a 100 (one-hundred) year period. All lenders must require borrowers to purchase and maintain flood insurance for Zone “A” properties.
Zone “V” (and its sub-designations: VE and V1-V99)
Coastal Flood Hazard Areas subject to both flooding and severe tidal conditions. Here again, flood insurance is mandatory.
Zone “C” Areas of “minimal” flooding.
This is the most desirable area, and requires no insurance.
Zone “B”
Areas where flooding is “anticipated” once in 500 (five-hundred) years or, if more frequently, only to minimal depths. Flood insurance is not mandatory in these areas, but is available.
Zone “D”
These are areas which have not been studied and therefore are non-participatory in the program.
Zone “X”
This is the newest designation, and may indicate either Zone “B” or Zone “C.” The intent is to readily distinguish areas which typically do not require flood insurance from those which do, thereby minimizing confusion.
The flood maps in a given area may have been recently revised. This works both ways in that areas which were previously not located in a special hazard area may now be, or better yet, areas that had been categorized in a hazard zone may now be clear.
Can a Flood Zone Designation be changed?
Yes. If you believe that the designation is erroneous you may submit an engineering study to the government and request a LOMA (letter of map amendment). If based on the study you provide, the government agrees that your property is not located in a special flood hazard area, a LOMA will be issued, and you may no longer be required to purchase or maintain flood insurance (some lenders may still require it).
For more information, visit: www.msc.fema.gov
