Topic summary
Terminal Radar Approach Control
Extracted from the Wikipedia article Air traffic control.
ATC regulations in the United States
The United States airspace is divided into 21 zones (centres), and each zone is divided into sectors. Also within each zone are portions of airspace, about 50 miles (80 kilometres) in diameter, called TRACON (Terminal Radar Approach Control) airspaces. Within each TRACON airspace are a number of airports, each of which has its own airspace with a 5 miles (8.0 kilometres) radius. FAAcontrol tower operators (CTO) / air traffic controllers use FAA Order 7110.65 as the authority for all procedures regarding air traffic.