Description

Controlled airspace is an airspace of defined dimensions within which air traffic control services are provided to Instrument Flight Rules (IFR) flights and to Visual Flight Rules (VFR) flights in accordance with the airspace classification.

Controlled Airspace is a generic term which covers ATS airspace classes A, B, C, D, & E. Controlled Airspace includes Control Areas, Terminal Control Areas, Airways and Control Zones.

(ICAO Annex 11 — Air Traffic Services)

Further Reading

ICAO Annex 11 — Air Traffic Services