This union was first registered as the Technical Supervisory Officers' Association, Postmaster-General's Department, Commonwealth of Australia in 1934 and underwent several changes of name: Postal Electricians, Supervisors and Foremen's Association in 1935, Supervising Technicians' Association in 1945 and the Telecommunication Technical Officers' Association in 1971. It merged with the External Plant Operators' Association in 1991 to form the Telecommunications Officers' Association which became part of the Communication Workers' Union of Australia in 1993.