Introduction to the National Flood Insurance Program (NFIP) [Updated October 8, 2019] [open pdf - 1MB]
From the Summary: "The National Flood Insurance Program (NFIP) was established by the National Flood Insurance Act of 1968 (NFIA, 42 U.S.C. §4001 et seq.), and was most recently reauthorized to November 21, 2019, through a series of short-term reauthorizations. The general purpose of the NFIP is both to offer primary flood insurance to properties with significant flood risk, and to reduce flood risk through the adoption of floodplain management standards. Communities volunteer to participate in the NFIP in order to have access to federal flood insurance, and in return are required to adopt minimum standards."
CRS Report for Congress, R44593
Congressional Research Service: https://crsreports.congress.gov/