 In 1943 he was named Director of Field Operations for the President's Committee on Fair Employment Practice (FEPC), the agency responsible for investigating and resolving employment discrimination in wartime and government procurement contracts, and he served in that position until 1945.In August 1945, Maslow returned to New York to become General Counsel of the American Jewish Congress, and Director of the American Jewish Congress's newly established Commission on Law and Social Action.He was Executive Director of AJCongress from 1960 until 1972.