In September 1940 significant expansion of the Australian Survey Corps was approved by Cabinet to include a Survey Directorate on Army Headquarters (AHQ) and higher formation headquarters, an AHQ Survey Company, an AHQ Cartographic Company, regional command field survey companies, a Survey Section 7th Military District (Darwin) and a Corps Survey Mobile Reproduction Section. Four militia Field Survey Companies RAE were established in the regional commands (1 Field Survey Coy RAE – Queensland, 2 Field Survey Coy RAE – New South Wales, 3 Field Survey Coy RAE – Victoria, 4 Field Survey Coy RAE – Western Australia) absorbing the Australian Survey Corps Sections and the Field Survey Units RAE (M) in the Commands.