The Compendium of Flood Map Changes is a list of all changes made to the National Flood Insurance Program maps by the Federal Emergency Management Agency (FEMA), including Physical Map Revisions, Letters of Map Revision, Letters of Map Revision Based on Fill and Letters of Map Amendment, during a given 6-month period. The Compendium is updated twice each year (for the periods of January 1 to June 30 and July 1 to December 31) and is published as a notice in the Federal Register. The Compendiums may be viewed or downloaded from the FEMA Library using the links provided below.
Available Compendium of Flood Map Changes
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