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USA Structures

Published by FEMA/Response and Recovery/Response Directorate | Department of Homeland Security | Metadata Last Checked: August 02, 2025 | Last Modified: 2025-04-01T12:39:09-04:00
DHS, FIMA, FEMA’s Response Geospatial Office, Oak Ridge National Laboratory, and the U.S. Geological Survey collaborated to build and maintain the nation’s first comprehensive inventory of all structures larger than 450 square feet for use in Flood Insurance Mitigation, Emergency Preparedness and Response.

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