| ifairworthy.org | Air Safety - International Federation Of Airworthiness (ifa) |
| alpa.org | Air Line Pilots Association |
| rotor.com | Helicopter Association International |
| itf.org.uk | International Transport Workers' Federation (ITF) |
| jaa.nl | Joint Aviation Authorities |
| ifatca.org | IFATCA (International Federation of Air Traffic Controllers) |
| icao.org | International Civil Aviation Organization |
| icao.int | International Civil Aviation Organization (ICAO) |
| iata.org | International Air Transport Association |
| iaopa.org | International Council of Aircraft Owner and Pilot Associations |
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