Pilot/Controller Glossary
EN ROUTE AIR TRAFFIC CONTROL SERVICES
This reproduces published FAA reference text for study. It does not replace the current official FAA publication or regulation.
Air traffic control service provided aircraft on IFR flight plans, generally by centers, when these aircraft are operating between departure and destination terminal areas. When equipment, capabilities, and controller workload permit, certain advisory/assistance services may be provided to VFR aircraft.
Retrieved from ecfr.gov on July 18, 2026.