TERMINAL RADAR SERVICE AREA
Pilot/Controller Glossary with JO 7110.65BB, Change 3, effective July 9, 2026 · Official text on faa.gov
Airspace surrounding designated airports wherein ATC provides radar vectoring, sequencing, and separation on a full‐time basis for all IFR and participating VFR aircraft. The AIM contains an explanation of TRSA. TRSAs are depicted on VFR aeronautical charts. Pilot participation is urged but is not mandatory.