The Design Organisation Approval Scheme (DAOS) assesses the competence of design organisations, assuring UK MoD Project Teams that listed organisations can design airworthy material. We offer competence assessments for Design Organisations working with military institutions worldwide.
The Maintenance Approved Organisation Scheme (MAOS) lets the UK MoD assess organisations supporting military aircraft airworthiness. We provide CAA Airworthiness Experts to audit against MAA Standards, with findings reported to the MAA. Compliant organisations receive an MAA certificate detailing their work scope.
We support the UK MoD with civil contractor involvement in military aircraft support and airworthiness oversight. This service is also available to other military organisations and aids in returning military aircraft of civilian design to the civil register.
We assist defence organisations in managing Continuing Airworthiness and issuing Airworthiness Review Certificates (ARCs). Our services include evaluating their facilities and processes to help them achieve approval.
We assess Civil and Military Airworthiness Certification standards for products, parts, and appliances. We also evaluate military modifications to civil aircraft and issue a Statement of Technical Satisfaction when civil requirements are met.
The UK CAA plays a key role in fostering Civil and Military Aviation cooperation in the UK. Drawing on this experience, we collaborate with governments and military organisations globally to enhance aviation safety and optimise airspace use.
Our 2-day training course provides delegates with an understanding of the UK Ministry of Defence (MoD) Design Approved Organisations Scheme (DAOS), the relationship with the UK Civil Aviation Authority (UK CAA) and how to prepare for the audits.
© 2025 CAA International (CAAi). Part of the UK Civil Aviation Authority. 
We want to inspire and engage with young people to explore careers in STEM, aviation, and aerospace to support and encourage their future career choices. Aviation and aerospace needs to be ready for the future and we need different talent, ideas and values to make that happen. We are committed to supporting the ambitions and interests of everyone to create opportunities which are inclusive and engaging for all.
STEM (Science, Technology, Engineering and Maths) is the umbrella term used to cover work promoting those subjects in education and to young people. Our work in the area is primarily about promoting the broad range of exciting jobs and careers that are available in aviation along with the skills and knowledge that someone looking to enter the sector could require.
It has been recognised by the aviation community that there will be an anticipated shortage of skilled aviation professionals in the near future.
By promoting awareness of the aviation and aerospace sector, the variety of career pathways you can take and the subjects that help you get there, we aim to inspire young aviators into this industry.
