Aeronautical Information Manual
AIM 4-4-2
Clearance Prefix
This reproduces published FAA reference text for study. It does not replace the current official FAA publication or regulation.
A clearance, control information, or a response to a request for information originated by an ATC facility and relayed to the pilot through an air-to-ground communication station will be prefixed by “ATC clears,” “ATC advises,” or “ATC requests.”
Retrieved from ecfr.gov on July 20, 2026.