Civil Aviation Authority
The Civil Aviation Authority (CAA) regulates all aspects of civil aviation in the UK. Its functions include economic regulation, safety regulation, consumer protection, and the regulation of airports, air traffic services, airlines, tour operators and air travel organisers. In relation to airport operation services and the supply of air traffic services it also exercises competition powers concurrently with the Competition and Markets Authority. The site’s Aviation Legislation section may be found via Publications > Search for a Publication > Publication Categories. It includes the full text of the loose-leaf publication CAP 393: Air Navigation: the Order and the Regulations, which sets out the provisions of the Air Navigation Order (both the 2009 and the 2016 versions) as amended and regulations made thereunder.