Air Transport Command (ATC) was a command of the Canadian Forces created in 1968 upon unification and eliminated in 1975. Significant dates: * 5 August 1943. Formed within Air Force Headquarters as the Directorate of Air Transport Command, Ottawa, Ontario. * 5 February 1945. Re-designated No. 9 (Transport) Group, Royal Canadian Air Force, and moved to Rockcliffe, Ontario. * 1 April 1948. Elevated to Air Transport Command. * 9 August 1951. Moved to RCAF Station Lachine, Quebec. * 1 September 1959. Moved to CFB Trenton, Ontario. * 1 February 1968. Integrated into the Canadian Armed Forces. * 2 September 1975. Air Transport Command was redesignated Air Transport Group.