Editing Hull classification symbol (section)

=== United States Fish and Wildlife Service ===

The Fish and Wildlife Service, created in 1940 and reorganized as the [[United States Fish and Wildlife Service]] (USFWS) in 1956, adopted a hull number system for its [[Fisheries science|fisheries]] [[research ship]]s and [[patrol vessel]]s. It consisted of "FWS" followed by a unique identifying number. In 1970, NOAA took control of the seagoing ships of the USFWS's Bureau of Commercial Fisheries, and as part of the NOAA fleet they were assigned new hull numbers beginning with "FRV," for Fisheries Research Vessel, followed by a unique identifying number. They eventually were renumbered under the modern NOAA hull number system.