Public Works and Environmental Services

CONTACT INFORMATION: Our administrative offices are open 8 a.m. – 4:30 p.m., Mon - Fri
703-324-5500 TTY 711
12000 Government Center Parkway
Suite 449, Fairfax, Va 22035
Joni Calmbacher
Director, Stormwater Planning

National Flood Insurance Program Letter

This letter is to publicize the importance of flood insurance and information to obtain a Flood Insurance Rate Map (FIRM) for individual properties by mailing it to local lending institutes, insurance agents, and real estate agents. This activity is one of the activities that Fairfax County conducts to continue to participate in the Community Rating System (CRS) program that will help the county residents to receive a discount on their flood insurance premium.

Dear Sir/Madam:

I am writing to advise you that Fairfax County participates in the Community Rating System (CRS), which is a part of the National Flood Insurance Program (NFIP) administered by the Federal Emergency Management Agency (FEMA). Under the CRS program, communities qualify for lower flood insurance premiums by undertaking certain flood protection activities. One such activity is the dissemination of information to the public on how to obtain Flood Insurance Rate Map (FIRM) flood zone determinations for individual properties.

Fairfax County provides FIRM determinations to the general public, real estate agencies, lending institutions and insurance agencies. If a property is in a Special Flood Hazard Area (SFHA), the Flood Hazard Zone and the Base Flood Elevation (if applicable) will be provided as part of the FIRM determination. As you are aware, if the purchase of a property in a SFHA is backed by federally insured or financed loans, flood insurance is required at the time of purchase. In addition, if applicable, the county may provide information such as flood hazard data for areas outside the FEMA SFHA, flood depth at properties, historic flood elevations, and information needed about our Resource Protection Areas

To determine if a property is located in our Digital Flood Insurance Rate Map (DFIRM), please visit Digital Flood Insurance Rate Map | Public Works and Environmental Services (

A FIRM determination may be obtained by contacting the Fairfax County Department of Public Works and Environmental Services (DPWES), Stormwater Planning Division (SWPD) at (703) 324-5500. FEMA has approved numerous revisions and amendments to the FIRMs since the date they were first issued. Amendments to the FIRMs may effectively remove certain properties from the SFHA but may not always result in a physical revision to the published FIRM. The updated FIRM, revisions and amendments are on file with SWPD, at 12000 Government Center Parkway, Suite 449, Fairfax, Virginia 22035. Please be advised that copies of FEMA elevation certificates for all new and substantially improved buildings constructed in the SFHA since June 1992 may also be available from SWPD at the above-referenced address.

Additionally, you may also call a FEMA Map Specialist at 1-877-FEMA-MAP (1-877-336-2627) for information on the FEMA map amendment process.

We would appreciate the sharing of this information with your subsidiary offices. If you have any questions or need further assistance, please feel free to contact me at 703-324-5500, TTY 711 or Fax: 703-802-5955.


Dipmani Kumar

Chief, Watershed Modeling and Analysis Branch

Fairfax Virtual Assistant