Editing Airspace class (section)

==Abbreviations used in this article==

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! Abbreviation !! Full name !! Description
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|ATC || [[Air traffic control]]|| A service provided by ground-based controllers who direct aircraft on the ground and through controlled airspace, and can provide advisory services to aircraft in non-controlled airspace. The primary purpose of ATC worldwide is to prevent collisions, organize and expedite the flow of air traffic, and provide information and other support for pilots.
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|ATS || Air Traffic Service || A generic term meaning variously, flight information service, alerting service, air traffic advisory service, air traffic control service (area control service, approach control service or aerodrome control service).
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|ATZ || Aerodrome traffic zone || Circular zones around an airport with a radius based on the length of the runway
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|CTA || [[Control area (aviation)|Control area]]|| A controlled airspace which extends from a lower limit to an upper limit.
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|CTR || [[Control Zone]] || A controlled airspace extending upwards from the surface to an upper limit.
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|FLxxx (or FL xxx) || [[Flight level]]|| Defined as a vertical altitude at standard atmospheric pressure, nominally expressed in hundreds of feet. Flight levels are usually designated in writing as FLxxx, where xxx is a two or three-digit number indicating the pressure altitude in units of 100 feet. In radio communications, {{Flight level|290}} would be pronounced as "flight level two nine(r) zero." The phrase "flight level" makes it clear that this refers to the standardized pressure altitude.
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|ICAO || [[International Civil Aviation Organization]] || A specialized agency of the United Nations. It codifies the principles and techniques of international air navigation and fosters the planning and development of international air transport to ensure safe and orderly growth
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|IFR || [[Instrument flight rules]]|| A set of regulations that concern flying by reference to instruments in the flight deck, and where navigation is accomplished by reference to electronic signals.
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|MATZ || [[Military aerodrome traffic zone]]|| A version of ATZ for military air bases.
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|SVFR || [[Special visual flight rules]]|| A set of aviation regulations under which a pilot may operate an aircraft. It's a special case of operating under visual flight rules (VFR) where a VFR flight is cleared by air traffic control to operate within a control zone in meteorological conditions that are poorer than visual meteorological conditions.
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|TCA || [[Terminal control area]]|| A control area normally established at the confluence of ATS Routes in the vicinity of one or more major aerodromes. 
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|TMA || [[Terminal maneuvering area]]|| A designated area of controlled airspace surrounding a major airport where there is a high volume of traffic.
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|TRSA || [[Terminal radar service area]]|| A delimited airspace in which radar and air traffic control services are made available to pilots flying under instrument flight rules or (optionally) visual flight rules for the purposes of maintaining aircraft separation.
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|VFR || [[Visual flight rules]]|| A set of regulations under which a pilot operates an aircraft in weather conditions generally clear enough to allow the pilot to see where the aircraft is going
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