Letter of Map Amendment (LOMA)

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National Flood Insurance Program (NFIP) Policy Index


A Letter of Map Amendment (LOMA) is an official amendment, by letter, to an effective National Flood Insurance Program (NFIP) map. A LOMA establishes a property''s location in relation to the Special Flood Hazard Area (SFHA). LOMAs are usually issued because a property has been inadvertently mapped as being in the floodplain, but is actually on natural high ground above the base flood elevation.

Because a LOMA officially amends the effective NFIP map, it is a public record that the community must maintain. Any LOMA should be noted on the community''s master flood map and filed by panel number in an accessible location.

NFIP Requirement


IS-9 Managing Floodplain Development Through The National Flood Insurance Program (NFIP) (Page 4-24) (PDF 8MB) (entire document)

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Revision to NFIP Maps

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Last Updated: 
07/24/2014 - 16:00
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