AMG without tears

Survey Co-ordination Act 1958 

With the passing of the Survey Co-ordination Act in 1940, the Department (now DELWP) became responsible for the co-ordination of all survey and mapping carried out by government departments and statutory authorities in the State of Victoria. This responsibility extended to the co-ordination of the survey activities of survey organisations, as far as that could be accomplished by co-operation and in accordance with the requirements of the Act. A survey network was established to facilitate the direct inter-relation of all surveys and mapping in one basic survey system and copies of certain plans were to be lodged with the Surveyor General who was required to maintain a Central Plan Register. The Department also established a Central Plan Office from which copies of maps and plans and subsequently aerial photographs could be purchased. 

Source: https://prov.vic.gov.au/archive/VA538 

This document relates to the difficulty of implementing a change of Mapping projection after the introduction of the Australian Geocentric Datum in 1966.