Air traffic controllers (ATCs) are people trained to maintain the safe, orderly and expeditious flow of air traffic in the global air navigation. The position of air traffic controller is one that requires highly specialized knowledge, skills, and abilities. ATCs apply separation rules to keep aircraft at a safe distance from each other in their area of responsibility and move all aircraft safely and efficiently through their assigned sector of airspace, as well as on the ground. Because ATCs have an incredibly large responsibility while on duty (on position) and make countless real-time decisions on a daily basis, the profession is consistently regarded around the world as one of the most mentally challenging careers, and can be notoriously stressful depending on many variables (equipment, configurations, weather, air traffic volume, human factors, etc.). Many ATCs, however, would cite high salaries, and a very large, unique, and privileged degree of autonomy as major advantages of their jobs.
Aerodrome and Approach Control Services and provided at all commercial airports throughout Thailand within 30 nautical miles radius from each airport and at altitude of 11,000 feet and below. Beyond these limits, the responsibility is transferred to the Area
Control Services which covers the whole of Thai airspace or Bangkok Flight Information Region (BKK FIR). However, for Don Mueang International Airport (DMK/VTBD) and Suvarnabhumi Airport (BKK/VTBS), the coverage area is extended to 50 nautical miles radius and an altitude of 16,000 feet and below. This is due to high traffic volume and the need to be able to transfer air traffic directly to nearby airports, such as U-Tapao and Kampangsaen, without having to pass through Area Control Center.
- Flight Data/Clearance Delivery (FD/CD): Issues IFR flight plan clearances, obtains squawk codes for VFR aircraft, helps with coordination for Ground Controller/
Local Controller, and cuts the ATIS (weather). FD/CD is commonly known in the secretary of the tower.
- Ground Controller: Issues taxi instructions and authorizes aircraft/vehicle movements on the airport except the active runway(s); Ground Controllers are not responsible for aircraft movement on ramps or other designated non-movement areas.
- Local (Tower) Controller: Issues take-off and landing instructions/clearances and authorizes aircraft/vehicle movements on or across runways.
- Approach Controller: Issues instructions to aircraft which are intending to land at or depart from the airport. This involves vectoring aircraft in a safe, orderly, and expeditious manner and, if needed, stacking the aircraft at different holding altitudes.
- Area Controller: Responsible for the safety of aircraft at higher altitudes, in the en-route phase of their flight.
- Age not less than 21 years old for Air Traffic Controller or not less than 18 years old for student Air Traffic Controller (According to CAAT regulations)
- Holding ICAO Aviation English Language Proficiency Test Certificate with the result at least Level 4
- Holding CAAT Medical Certificate Class 3
- Have a knowledge of basic Aviation and General Air Law
- Graduated Air Traffic Control Course From Aviation Training Institute approved by CAAT
- Aeronautical Radio of Thailand Limited (AEROTHAI)
- More than 18,000 THB/Month (depends on Licenses holding)