Administrative Regulations on Radio Waves Article 50

The assignment of selective calling identification numbers of ship stations and identification number of coast stations shall accord with the following rules:1. Selective calling identification number of ship stations and identification number of coast stations shall be used in maritime communications.2. When the selective calling system conforms to the selective calling system of international maritime mobile service of Radio Regulations of the International Telecommunication Union, the selective calling number and the coast station identification number shall be selected from the allocated international series numbers and allocate them to the ship station and coast station.3. Selective calling identification numbers of ship station shall be set in narrow-band printing equipment.