47 CFR 87.89: Minimum operator requirements.

(a) A station operator must hold a commercial radio operator license or permit, except as listed in paragraph (d).

(b) The minimum operator license or permit required for operation of each specific classification is:

Minimum Operator License or Permit

Land stations, all classes

—All frequencies except VHF telephony transmitters providing domestic service RP

Aircraft stations, all classes

—Frequencies below 30 MHz allocated exclusively to aeronautical mobile services RP —Frequencies below 30 MHz not allocated exclusively to aeronautical mobile services MP or higher —Frequencies above 30 MHz not allocated exclusively to aeronautical mobile services and assigned for international use MP or higher —Frequencies above 30 MHz not assigned for international use none —Frequencies not used solely for telephone or exceeding 250 watts carrier power or 1000 watts peak envelope power G or higher

(c) The operator of a telephony station must directly supervise and be responsible for any other person who transmits from the station, and must ensure that such communications are in accordance with the station license.

(d) No operator license is required to:

(1) Operate an aircraft radar set, radio altimeter, transponder or other aircraft automatic radionavigation transmitter by flight personnel;

(2) Test an emergency locator transmitter or a survival craft station used solely for survival purposes;

(3) Operate an aeronautical enroute station which automatically transmits digital communications to aircraft stations;

(4) Operate a VHF telephony transmitter providing domestic service or used on domestic flights.