Recommissioned 15 February 1950, "Requisite" was assigned to hydrographic survey duties. She reported to the Atlantic Fleet for duty on 1 March and for the next three years she spent the winter survey season operating in the Caribbean and the warmer months off Labrador and Greenland. Reclassified AGS-18 on 18 August 1951, she discontinued her North Atlantic-Caribbean schedule in the fall of 1954. On 6 October she got underway from Norfolk; and, from 1 November 1954 to 2 February 1955, she conducted surveys from İskenderun, Turkey.Returned to Norfolk,Va. They went west through the Panama Canal to San Diego, then to Seattle. 1955