An air traffic controller (ATC) is a person licensed under the standards of the International Civil Aviation Organization (ICAO) to maintain the safe, orderly, and expeditious flow of aircraft in controlled airspace, on the ground at controlled aerodromes, and along instrument flight routes. ICAO, a United Nations specialized agency founded under the 1944 Chicago Convention, sets minimum licensing, training, and equipment standards that its 193 contracting states translate into national regulations; the actual operation of air traffic services is delegated to designated air navigation service providers (ANSPs) such as the Federal Aviation Administration (FAA) in the United States, NATS in the United Kingdom, and bodies affiliated with EUROCONTROL across Europe.
The profession emerged from ...
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ACAS Protection Volumes Diagram.svg
Diagram showing the protection envelopes of aviation Traffic collision avoidance system (TCAS), whic...
A Waaf Corporal Ach-gd Watches From the Control Tower As An Aircraft Comes in CH8136.jpg
A WAAF corporal ACH/GD ("Aircraft Hand, General Duties") watches from the control tower as an aircra...
Air traffic controller Skyguide at Airport Zurich.jpg
A air traffic controller from Switzerland's Skyguide working in the airport tower of Zurich.
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Archie William League is shown on duty in his summer office. Note the rolled-up flags in the wheelba...
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Sign based on photograph with front view of a Turkmenistan Airlines Boeing 757 landing at London Hea...
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Civilian air traffic controllers. Memphis, Tennessee.
Control tower at Birmingham Airport, England 27June2019 arp.jpg
The control tower of Birmingham Airport, England. The tower is located in the airport area called El...
US Navy 060505-N-9079D-025 Air Traffic Controller 3rd Class David McKeehe works approach controller in Carrier Air Traffic Control Center (CATTC).jpg
Pacific Ocean (May 5, 2006) - Air Traffic Controller 3rd Class David McKeehe works approach control ...