[Code of Federal Regulations]
[Title 47, Volume 5]
[Revised as of October 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 47CFR80.93]

[Page 32]
 
                       TITLE 47--TELECOMMUNICATION
 
        CHAPTER I--FEDERAL COMMUNICATIONS COMMISSION (CONTINUED)
 
PART 80_STATIONS IN THE MARITIME SERVICES--Table of Contents
 
             Subpart C_Operating Requirements and Procedures
 
Sec. 80.93  Hours of service.

    (a) All stations. All stations whose hours of service are not 
continuous must not suspend operation before having concluded all 
communication required in connection with a distress call or distress 
traffic.
    (b) Public coast stations. (1) Each public coast station whose hours 
of service are not continuous must not suspend operation before having 
concluded all communication involving messages or calls originating in 
or destined to mobile stations within range and mobile stations which 
have indicated their presence.
    (2) Unless otherwise authorized by the Commission upon adequate 
showing of need, each public coast station authorized to operate on 
frequencies in the 3000-23,000 kHz band must maintain continuous hours 
of service.
    (c) Compulsory ship stations. (1) Compulsory ship stations whose 
service is not continuous may not suspend operation before concluding 
all traffic originating in or destined for public coast stations 
situated within their range and mobile stations which have indicated 
their presence.
    (2) For GMDSS ships, radios shall be turned on and set to proper 
watch channels while ships are underway. If a ship has duplicate GMDSS 
installations for DSC or INMARSAT, only one of each must be turned on 
and keeping watch.
    (d) Ships voluntarily fitting GMDSS subsystems. For ships 
voluntarily fitting GMDSS subsystems, radios shall be turned on and set 
to proper watch channels while ships are underway. If ship has duplicate 
GMDSS installations for DSC or INMARSAT, only one of each must be turned 
on and keeping watch.
    (e) Other than public coast or compulsory ship stations. The hours 
of service of stations other than those described in paragraphs (b), 
(c), and (d) of this section are determined by the station licensee.

[51 FR 31213, Sept. 2, 1986, as amended at 68 FR 46960, Aug. 7, 2003]