Insurance Commissioner John W. Oxendine said the National Flood Insurance Program has been reauthorized by Congress, and flood policies are again available through your homeowners insurance agent or company. Flood coverage is federally backed by the NFIP. The National Flood Insurance Extension Act extends the NFIP through September 30 of this year, and is retroactive back to June 1, 2010. The program had been inactive since May 31.