The implementation arrangements were signed during the 2026 Federal Aviation Administration-European Union Aviation Safety Agency International Aviation Safety Conference in the United States, with representatives from CASA and the UK CAA meeting to advance collaboration between the two aviation regulators.
By streamlining regulatory processes and supporting mutual recognition, the arrangements will help facilitate the movement of civil aeronautical products and services between the two countries, while maintaining robust safety oversight.
The new arrangements strengthen cooperation on airworthiness matters, covering aircraft design, production, certification and maintenance activities.
They build on the Memorandum of Understanding (MOU) between CASA and UK CAA signed in June 2025, which paved the way for technical assessments of each other's regulations, standards, requirements and systems. The new arrangements are effective from 1 September 2026, and CASA will update advisory circulars to provide guidance to industry on the use of these arrangements.
The arrangements reflect the strong and longstanding relationship between Australia and the United Kingdom and demonstrate our shared commitment to maintaining high safety standards while supporting innovation and growth across the aviation sector.
As aviation continues to operate in an increasingly connected global environment, partnerships between regulators play an important role in supporting safe, efficient and effective international operations.
CASA has agreements and arrangements in place with a range of aviation regulatory authorities around the world including Brazil, China, New Zealand, Singapore, the United States, Canada, Hong Kong, Korea and Japan.
Continued collaboration with international partners helps ensure Australia's aviation system remains safe, modern and aligned with global best practice.
