Code of Federal Regulations Title 47. Telecommunication § 47.5.121 Station record requirements

(a)(1) For conventional, program, medical testing, compliance testing experimental radio stations, the current original authorization or a clearly legible photocopy for each station shall be retained as a permanent part of the station records but need not be posted. Station records are required to be kept for a period of at least one year after license expiration.

(2) For Spectrum Horizons experimental radio stations, the licensee is solely responsible for retaining the current authorization as a permanent part of the station records but need not be posted. Station records are required to be kept for a period of at least one year after license expiration.

(1) Information concerning the nature of the experimental operation and the periods in which it is being conducted;  and

(2) Information concerning any specific data requested by the FCC.