The Survey Corps was subject to many Government and Defence reviews since the 1950s, with seven from the early 1980s. Review outcomes led to many reorganisations. In the late 1980s and early 1990s efficiency reviews led to an Army direction that the non-core strategic mapping functions of the Corps were to be tested as part of the Defence Commercial Support Program. Army decisions as part of that review were that: the combat support survey force (1st Topographical Survey Squadron) would be increased significantly; the non-core work, mainly systematic mapping of Australia would be performed by a new Army agency with civilian personnel; and, that the core strategic mapping would be retained by Army until it could be transferred to Defence Intelligence. This last component was achieved in 2000 when the Defence Imagery and Geospatial Organisation (now Australian Geospatial-Intelligence Organisation) was formed.