VASDI Web Map Service NFHL

NFHL Web Map Service - The Federal Emergency Management Agency's (FEMA) National Flood Hazard Layer (NFHL) data contains the flood hazard information published on Flood Insurance Rate Maps (FIRMs) and later changes from Letters of Map Revision (LOMRs). The specifications for the horizontal control of DFIRM data are consistent with those required for 1:12,000-scale maps. For more information see FEMA's Map Service Center web site at http://msc.fema.gov.