Information about Airspace change process Find out how we make changes to Australian airspace through airspace change proposals (ACPs). Australian airspace reviews Learn about Australian airspace reviews and search for results of our past reviews. Extraterritorial airspace Learn how we are developing changes to regulations addressing issues around Australian-administered airspace. Office of Airspace Regulation Learn how our Office of Airspace Regulation (OAR) manages the regulation of airspace in Australia. Radio procedures in non-controlled airspace Read about radio procedures for pilots in non-controlled airspace and aerodromes. Show more Show more Show less Also see Airspace consultations See current consultations to change airspace. Show more Show less