47 C.F.R. § 80.330 Safety message.
Title 47 - Telecommunication
(a) The safety signal and call must be followed by the safety message. Where practicable, the safety message should be sent on a working frequency, and a suitable announcement to this effect must be made at the end of the call. (b) Messages about meteorological warnings, of cyclones, dangerous ice, dangerous wrecks, or any other imminent danger to marine navigation must be preceded by the safety signal. (c) Stations hearing the safety signal must not make any transmission likely to interfere with the message. [51 FR 31213, Sept. 2, 1986, as amended at 69 FR 64674, Nov. 8, 2004]
Title 47: Telecommunication
PART 80—STATIONS IN THE MARITIME SERVICES
Subpart G—Safety Watch Requirements and Procedures
Distress, Alarm, Urgency and Safety Procedures
§ 80.330 Safety message.

