What it does
The Air Navigation Act 1920 (the Act) establishes the foundational Commonwealth framework for regulating civil air navigation, with a primary focus on international operations. At its core, the statute gives parliamentary approval to Australia's ratification of the Chicago Convention on International Civil Aviation (concluded 7 December 1944) and the International Air Services Transit Agreement, together with no fewer than twelve amending Protocols spanning 1954 to 1990 (s 3A). Section 4 deems the English texts of these instruments to be those set out in the Schedules, while s 5 empowers the Minister to declare, by Gazette notice, the countries that are Contracting States, such notices constituting prima facie evidence.
Operationally, the Act mandates that aircraft arriving from or departing to points outside Australian territory must use a Minister-designated international airport (s 9 and s 10(1)). Contravention by the operator or pilot in command attracts a maximum penalty of two years' imprisonment (s 10(2)), subject to a reasonable excuse defence carrying an evidential burden (s 10(3) and Criminal Code s 13.3(3)). The legislation distinguishes between scheduled and non-scheduled international flights. Scheduled services operated by foreign international airlines that are parties to the Air Transit Agreement enjoy the first two "freedoms of the air" (overflight without landing and technical stops) under s 11, but any scheduled international air service requires an international airline licence granted by the Secretary under the regulations (s 12(1)). Breach carries up to seven years' imprisonment (s 12(1A)), again subject to reasonable excuse (s 12(1AA)).
For non-scheduled (charter) flights, the Act prohibits the taking on or discharging of passengers, cargo or mail for reward without a permission issued under s 15D (s 15A(1)-(2)). Each of the operator and pilot in command commits an offence punishable by six months' imprisonment. Strict liability applies to the result element (s 15A(2C)), while reasonable excuse and the existence of a permission each attract an evidential burden (ss 15A(1A), (2A), (2B)). The Secretary may exempt categories of commercial non-scheduled flights by legislative instrument (s 15A(3)), having regard to public interest criteria that expressly exclude safety of navigation (s 15A(4)). Detailed application, information and decision-making requirements are prescribed in ss 15B–15D, including mandatory consideration of capacity on scheduled services, advice from the International Air Services Commission, employment and investment impacts where foreign interests predominate, and Australia's international relations.