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Area control centers (ACCs) control IFR air traffic in their flight information region (FIR).. The current list of FIRs and ACCs is maintained by the International Civil Aviation Organization (ICAO).
Houston Air Route Traffic Control Center, United States. The United States Federal Aviation Administration (FAA) defines an ARTCC as: [a] facility established to provide air traffic control service to aircraft operating on IFR flight plans within controlled airspace, principally during the en-route phase of flight.
Eurocontrol takes center stage in managing air traffic disruptions within Europe to guarantee the continuity of safe and efficient air operations during crises. For instance, the 2010 Icelandic Volcanic Ash Crisis saw the involvement of Eurocontrol in providing relevant data to the national authorities and air traffic control agencies to reduce ...
A map showing the borders of the United States' flight information regions as well as that of Canada and other neighboring nations. Old Federal Aviation Administration airspace map of ARTCCs in the United States overlaid with what states they cover Flight Information Regions (FIR) of France FIR and jurisdictional airspace in Japan FIR and jurisdictional airspace in South Korea
Airspace class is a category used to divide the sky into different zones, defined by both geographical boundaries and altitude levels. The International Civil Aviation Organization (ICAO) provides standardized airspace classifications that most countries follow.
Air traffic control (ATC) is a service provided by ground-based air traffic controllers who direct aircraft on the ground and through a given section of controlled airspace, and can provide advisory services to aircraft in non-controlled airspace. The primary purpose of ATC is to prevent collisions, organize and expedite the flow of traffic in ...
air traffic services (ATS) including air traffic control (ATC), air traffic advisory services, flight information services and alerting services, airspace management (ASM), the purpose of which is to allocate air routes, zones, flight levels to different airspace users and the airspace structure, and
Instrument flight rules traffic under ATC guidance [citation needed] security, e.g. within an air defense identification zone [ citation needed ] Controlled airspace usually exists in the immediate vicinity of busier airports, where aircraft used in commercial air transport flights are climbing out from or making an approach to the airport, or ...