Section 87.103 - Posting station license(a)Stations at fixed locations. The license or a photocopy must be posted or retained in the station's permanent records.(b)Aircraft radio stations. The license must be either posted in the aircraft or kept with the aircraft registration certificate. If a single authorization covers a fleet of aircraft, a copy of the license must be either posted in each aircraft or kept with each aircraft registration certificate.(c)Aeronautical mobile stations. The license must be retained as a permanent part of the station records.53 FR 28940, Aug. 1, 1988, as amended at 54 FR 11720, Mar. 22, 1989