CASA 73/17 — Civil Aircraft in Australian Territory (Interception) Direction 2017

Overview

CASA 73/17, the Civil Aircraft in Australian Territory (Interception) Direction 2017, was enacted to address the need for clear procedures for pilots in command of foreign registered aircraft operating under foreign or New Zealand air transport authorisations when their aircraft are intercepted during flights within Australian territory. This legislative instrument was developed under the Civil Aviation Safety Regulations 1998 and is managed by the Civil Aviation Safety Authority (CASA). The policy objective behind this direction is to ensure the safety and security of Australian airspace by providing specific guidelines on how pilots should respond during an aircraft interception, in line with international standards set by the International Civil Aviation Organization (ICAO). The direction mandates that pilots comply with the procedures outlined in ICAO Annex 2, specifically focusing on signals and the interception of civil aircraft, thereby enhancing coordination and response effectiveness during such critical situations.

Scope and Application

CASA 73/17 — Civil Aircraft in Australian Territory (Interception) Direction 2017, as amended, applies specifically to the pilot in command of a foreign registered aircraft operating within Australian territory under a foreign air transport operator's certificate (AOC) or a New Zealand AOC with ANZA privileges valid for Australia, if such an aircraft is intercepted by another aircraft during a flight. This legislation encompasses the procedures and obligations that the pilot must adhere to when their aircraft is intercepted, ensuring compliance with international standards set out in the International Civil Aviation Organization (ICAO) Annex 2. The direction mandates that the pilot follow the applicable procedures for intercepted aircraft as detailed in the ICAO's signals and interception guidelines. The legislation is set to be repealed at the end of 31 July 2028, although certain provisions under the Civil Aviation Safety Regulations 1998 will continue to be in effect until the repeal of this instrument. The application of this direction is subject to amendments via subordinate instruments, with the most recent being CASA 43/25 — Interception of Civil Aircraft (CASA 73/17) Amendment Instrument 2025, which came into effect on 25 July 2025.

Key Provisions

The Civil Aircraft in Australian Territory (Interception) Direction 2017 (CASA 73/17) sets out specific procedures that pilots in command of intercepted aircraft must follow, particularly when their aircraft are operating under a foreign air transport operator certificate (AOC) or a New Zealand AOC with Australian New Zealand Airworthiness (ANZA) privileges. The main operative sections of this direction (sections 3 and 4) apply to pilots in command of foreign registered aircraft operating in Australian territory under a foreign AOC or a New Zealand AOC with ANZA privileges, provided the aircraft is intercepted by another aircraft during the flight. The direction mandates compliance with the applicable procedures outlined in ICAO Annex 2 – Appendix 1 – Signals – Section 2 – Signals for use in the event of interception, and ICAO Annex 2 – Appendix 2 – Interception of Civil Aircraft, Attachment A – Interception of Civil Aircraft. Under this direction, the obligations imposed on the parties it governs are primarily procedural and compliance-based. Pilots in command of intercepted aircraft must adhere to the specific signals and procedures detailed in the ICAO documents referenced. This includes ensuring that the aircraft is operated in accordance with these procedures when intercepted, maintaining communication with the intercepting aircraft, and following any directives issued by air traffic control or other relevant authorities during the interception. Compliance with these procedures is crucial for maintaining safety and ensuring a coordinated response to interception events. The direction does not explicitly detail specific offences, penalties, or civil/criminal consequences for breach within the text itself. However, given the regulatory context, non-compliance with these procedures could potentially lead to enforcement actions under the Civil Aviation Safety Regulations 1998 (CASR), including administrative penalties or other enforcement measures under the Civil Aviation Act 1988. The maximum penalties for breaches of CASR can include fines and potential imprisonment, depending on the severity of the breach and the specific regulatory provision contravened. It is important for pilots and operators to ensure strict adherence to the direction to avoid any adverse consequences.