State Transport Authority (South Australia)

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Government Agency overview
Formed	18 April 1974
Preceding Government Agency	Municipal Tramways Trust South Australian Railways Transport Control Board
Dissolved	30 June 1994
Superseding agency	Passenger Transport Board TransAdelaide
Jurisdiction	South Australia
Headquarters	Adelaide

The State Transport Authority (STA) was the government agency which controlled public transport in South Australia between 1974 and 1994.^{[citation needed]}