Regulations

Airspace Classification

Definition

The division of airspace into classes (A through G) with different rules for entry, equipment, and pilot qualification. Class A is the most restrictive (IFR only above FL180) and Class G is uncontrolled.

Related Terms

Class B Airspace

Controlled airspace surrounding the busiest airports requiring ATC clearance for...

Class C Airspace

Controlled airspace around medium-traffic airports requiring two-way radio commu...

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