National Flood Hazard Layer (NFHL) | FEMA.gov says " Technical GIS users can also utilize a series of dedicated GIS web services that allow the NFHL database to be incorporated into websites and GIS applications." and provides this link:
FEMA: Mapping Information Platform: NOPAGETAB_NFHLWMS
But as far as I can tell, that just send you to a map viewer, and download to an image or pdf. However, buried in the fine print is:
For more information, please call or email a FEMA Map Specialist at 1-877-FEMA-MAP or FEMAMapSpecialist@riskmapcds.com.
That should just about do it....