Class C airspace

Class C airspace is controlled airspace around airports that provide specified radar and tower services. It normally includes a surface area around the primary airport and an outer area above it. The exact boundaries and requirements are published on the current chart.

What it governs

VFR aircraft generally establish two-way communication with the ATC facility before entering Class C airspace. The pilot must understand the controller's response and comply with any instructions. Communication is not the same as a clearance into every other class of controlled airspace, so pilots should learn the specific rule for the airspace they are entering.

Class C boundaries are often shown with solid magenta lines and may have different floor and ceiling values for the inner and outer areas. The airspace can have associated satellite airports and arrival or departure flows. A pilot should review the chart, frequencies, and local procedures rather than relying on a generic shape.

Example

A VFR aircraft approaching the outer shelf contacts the published approach frequency, gives its position, altitude, destination, and request, then confirms that the controller has established communication before crossing the boundary. The pilot continues to monitor and respond while in the area.

Why it matters

Class C procedures organize traffic near busy airports while allowing different aircraft operations around the primary field. Failing to establish communication or misreading a shelf can create an airspace deviation and a traffic conflict.

Review current charts and the FAA Aeronautical Information Manual before flight. Frequencies, hours, and local procedures can change, and temporary notices may affect operations.

Related terms and tools

• Class B airspace
• Class D airspace
• FAA airspace resources