 There were three 12 month Officer Cadet School (OCS) Portsea courses at Scheyville in 1972 and 1973.The first six months of these courses were the same as that for National Servicemen and the latter six months concentrating on subjects more suited to careers with the Regular Army.The Officer Training Unit continued to function until 1973 (the last intake was October 1972 to March 1973), after the Australian Labor Party abolished further National Service in December 1972.