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About Flood Map Service Center

The FEMA Flood Map Service Center (MSC) is the official public source for flood hazard information produced in support of the National Flood Insurance Program (NFIP). Use the MSC to find your official flood map, access a range of other flood hazard products, and take advantage of tools for better understanding flood risk.

FEMA flood maps are continually updated through a variety of processes. Effective information that you download or print from this site may change or become superseded by new maps over time. For additional information, please see the Flood Hazard Mapping Updates Overview Fact Sheet


Address Update: The address associated with the Letter of Map Change (LOMC) Clearinghouse has changed to the following:

LOMC Clearinghouse
3601 Eisenhower Avenue, Suite 500
Alexandria, VA 22304-6426
Att: LOMA Manager

Hazus 4.0 (Tsunami) Now Available: The Hazus Team has deployed Hazus 4.0 - Tsunami Module. The software can be downloaded for free on the FEMA Flood Map Service Center (MSC) Hazus Download page. Hazus 4.0 is supported on ArcGIS 10.4 and Windows 10 64-bit, with continued support for Windows 8.1 and 7 (64-bit only).

NOTE: You must uninstall any existing versions of Hazus and all Microsoft SQL components from your computer before downloading and ensure that you have ArcGIS 10.4 on your computer. When installing ArcGIS 10.4, a patch must be applied for Hazus 4.0 to properly display ArcGIS attribute tables from the ArcMap Table of Contents. Additional details are available in the User Release Notes as part of the Hazus Installation package. The patch is available at: http://support.esri.com/download/7427.

For questions or issues, feel free to contact the Hazus Help Desk at hazus-support@riskmapcds.com.

Historic FIS now available! FEMA's MSC has for the first time exposed historic Flood Insurance Study (FIS) Reports on the MSC website. There are now over 10,000 historic FIS on the MSC website available for free download. The work continues to make all historic documentation available for download, and if you have a document that is not currently available please contact FEMA's Map Information eXchange at 1-877-FEMA-MAP.

Browser Configuration — To access all functionality of the MSC, Internet Explorer users should confirm Compatibility View is not enabled. In addition, users of Internet Explorer 9 and 10 should first take the following steps before using the MSC:

  1. Open Internet Options under the Tools Menu
  2. Click the Advanced tab
  3. Scroll down to Security and confirm the following items are checked: "Use TLS 1.1" and "Use TLS 1.2"
  4. Click OK to exit Internet Options