The Public Transport Corporation (PTC) was a Victoria State Government owned statutory authority formed under the Transport Act 1983 which operated passenger and freight trains, trams and bus services.

The Metropolitan Transit Authority (MTA), known to the general public as The Met, was a Government of Victoria owned corporate body that operated suburban passenger trains, trams and buses in Victoria, Australia. It was set up under Section 15 of the Transport Act 1983 and commenced operation on 1 July 1983. It was a statutory body set up to manage the trams and buses formerly operated by the Melbourne & Metropolitan Tramways Board, the metropolitan train operations of the former VicRail, and the operations of the former Melbourne Underground Rail Loop Authority.