Global Satellite Navigations Systems such as GPS enable positioning information accurate to about 5-10 metres. A Satellite Based Augmentation System (SBAS) will improve the accuracy to less than a metre, and in some devices to 10 centimetres, and provide greater integrity. More precise and accurate positioning increases our productivity, secures our safety and enables innovation. Unlike most regions of the developed world where SBAS is available, Australasia does not currently have access to any reliable free-to-air augmentation services. LINZ and Geoscience Australia are working together to develop a regional SBAS to improve the accuracy of GPS.