Airservices is Australia's air navigation service provider - we provide air traffic control, aviation rescue and fire fighting and air navigation services.

Navigation Rationalisation Project

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Transitioning Australia’s navigation network

As part of the transition to the Global Navigation Satellite System (GNSS) by 4 February 2016, the Airservices Navigation Rationalisation Project (NRP) is switching-off 179 ground-based navigation aids, on 26 May 2016.

The navigation aids to be decommissioned include, non-directional beacons, VHF omni-directional ranges and distance measuring equipment.

GNSS is now the primary means of navigation for all instrument flight rule aircraft, which will be supported by the Backup Navigation aid Network, also known as the BNN.

As part of the transition, there will be amendments to aeronautical information publications  such as the En Route Supplement of Australia, Departure and Approach Procedures, the Designated Airspace Handbook and aeronautical charts.

Contact the team if you have questions, by emailing


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