StacksVerified U.S. regulatory reference

39 CFR §776.6

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
If structures impact, are located in, or support development in a floodplain, construction must conform, at a minimum, to the standards and criteria of the National Flood Insurance Program (NFIP), except where those standards are demonstrably inappropriate for postal purposes.