The Australian Postal and Telecommunications Union was formerly the Amalgamated Postal Workers' Union, covering postmen, sorters and linesmen. In 1990 the union amalgamated with the Union of Postal Clerks and Telegraphists, then the Australian Postmasters' Association in 1991 and the Postal Supervisory Officers' Association in 1992 retaining its name until merging with the combined Australian Telecommunications Employees' Association and Australian Telephone and Phonogram Officers' Association to form the Communication Workers' Union of Australia later in 1992.