Satellite-based navigation is expected to provide significant operational benefits, such as enhanced safety in enroute and terminal areas, by reducing hazards related to uncertain position and by the provision of non-precision and precision approaches at non-equipped airports. In some cases, this technology will also reduce delays, provide for better airport and runway utilisation, and increase flexibility and efficiency of flight operations by reducing flight time and fuel required.

In the case of current Global Positioning System (GPS) based Instrument Flight Rules (IFR) enroute and non-precision approach approvals in Australia, such benefits are already being realised.

Airservices Australia has tested Special Category 1 (SCAT-1) "private domain" Local Area Augmentation Systems (LAAS) at Melbourne, Canberra and Avalon Airports. As a result of these tests, Norfolk Island installed a LAAS SCAT-1. The ground system was declared operational in October 2000. Unfortunately the airline that planned to use the system no longer flies to the island. A full Category 1 LAAS is planned to be installed at Sydney International Airport in FY 2004/05.

Airservices Australia has developed a Ground based Regional Augmentation System (GRAS). Proof of concept test flying has been completed.