Part 18 provides for the rules governing the administration, licensing, permits, registration and economic assessment of air transport activities. It also incorporates relevant provisions of ICAO Annex 9 (Amendment 29) and international best practices. The part deals with Air Transport Licensing of domestic, regional and International operations by Nigerian and Foreign Air Carriers. This part also deals with requirements for economic regulation of Aerodrome and Air Navigation Service providers. It provides requirements for the registration of Allied Aviation Services in addition to regulating or prescribing unfair methods of competition and anti-competitive practices. It also prescribes requirements for economic assessment of Airlines, Aviation Insurance, Civil Aviation Fees, and Air Transport Statistics.