Controlled Airspace – The Wise Pilot

An airspace of defined dimensions within which ATC service is provided.

Glossary: Air Traffic Control Clearance
An authorization issued by an ATC unit for an aircraft to proceed within controlled airspace in accordance with the conditions specified by that unit.
Glossary: Arctic Control Area
A controlled airspace within the Northern Domestic Airspace (NDA) at FL 270 and above.
Glossary: Control Area Extension
A controlled airspace of defined dimensions within the low-level airspace (LLA), extending upwards from 2,200 feet AGL unless otherwise specified.
Glossary: Control Zone
A controlled airspace of defined dimensions extending upwards from the surface of the earth up to and including 3,000 feet AAE unless otherwise specified.
Glossary: Military Terminal Control Area
A controlled airspace of defined dimensions normally established in the vicinity of a military aerodrome and within which special procedures and exemptions exist for military aircraft. The terminology (Class B, C, D or E equivalent) used for the designations of MTCAs describes the equivalent level of service and operating rules for civilian aircraft operating within the MTCA and under military control.