Official map of a community where the boundaries of the flood, mudslide and related erosion areas having special hazards have been designated as Flood Zones A, M, and E. Now superseded by the Floodway Hazard Boundary Map (FHBM).
FLOOD BOUNDARY FLOODWAY MAP (FBFM)
Meaning of FLOOD BOUNDARY FLOODWAY MAP (FBFM) in English
Environmental engineering English vocabulary. Английский словарь экологического инжиниринга. 2012