The Intergovernmental Committee on Surveying and Mapping (ICSM) is responsible for modernising Australia’s datum. In September 2015, the ICSM formed a dedicated working group to oversee the implementation of Geocentric Datum of Australia 2020. The GDA Modernisation Implementation Working Group (GMIWG) has government representatives from the Commonwealth, states and territories who have a broad range of knowledge and experience in the surveying and spatial sciences industry. The group is consulting with users and building the tools and technical resources needed to assist with the datum transition. It is working to ensure that the practical implementation of the datum occurs seamlessly and with minimal disruption to existing systems and processes.