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National Flood Hazard Layer (NFHL) GIS Services User Guide

FEMA provides access to the National Flood Hazard Layer (NFHL) and related data through GIS services, which are made available through a variety of different protocols. You can use the services to add web-based digital flood hazard maps, or access mapping attributes, within a variety of applications.

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Icon for file of type application/pdfNFHL GIS Services User Guide
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