47 C.F.R. § 101.215 Posting of station authorization and transmitter identification cards, plates, or signs.
Title 47 - Telecommunication
(a) Each licensee shall post at the station the name, address and telephone number of the custodian of the station license or other authorization if such license or authorization is not maintained at the station. (b) The requirements in paragraph (a) of this section do not apply to remote stations using frequencies listed in §101.147(b).
Title 47: Telecommunication
PART 101—FIXED MICROWAVE SERVICES
Subpart D—Operational Requirements
§ 101.215 Posting of station authorization and transmitter identification cards, plates, or signs.