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FEMA updates flood risk analysis and mapping standards

from IAEM

The Federal Emergency Management Agency's (FEMA) Federal Insurance & Mitigation Administration has updated the guidance and standards that are used in its flood mapping and risk analysis efforts. The updates include the adoption of the U.S. Geological Survey 3D Elevation Program specifications for LIDAR (Light Detection and Ranging) and a clarification of the requirement for all Letters of Map Revision (LOMRs) to update the National Flood Hazard Layer (NFHL) so that they reflect the location for LOMRs in the NFHL. Additionally, a new standard has been adopted for applying the regulatory definitions in the identification of primary frontal dunes, which provides clarification on how FEMA will interpret the "continuous or nearly continuous" element of the regulatory definition of a primary frontal due. The standards and related guidance are available online. more

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