47 C.F.R. § 23.12 Use of radiotelegraph emissions by radiotelephone stations.
Title 47 - Telecommunication
The licensee of a point-to-point radiotelephone station may be authorized to use type N0N, A1A, A2A, F1B, or F2B emission for identification, for test purposes or for the exchange of service messages. [49 FR 48701, Dec. 14, 1984]
Title 47: Telecommunication
PART 23—INTERNATIONAL FIXED PUBLIC RADIOCOMMUNICATION SERVICES
Fixed Public Services
§ 23.12 Use of radiotelegraph emissions by radiotelephone stations.