Sec. 80.1074  Radio maintenance personnel for at-sea maintenance.

    (a) Ships that elect the at-sea option for maintenance of GMDSS 
equipment (see Sec. 80.1105) must carry at least one person who 
qualifies as a GMDSS radio maintainer, as specified in paragraph (b) of 
this section, for the maintenance and repair of equipment specified in 
this subpart. This person may be, but need not be, the person designated 
as GMDSS radio operator as specified in Sec. 80.1073.
    (b) The following licenses qualify personnel as GMDSS radio 
maintainers to perform at-sea maintenance of equipment specified in this 
subpart. For the purposes of this subpart, no order is intended by this 
listing or the alphanumeric designator.
    (1) T-1: First Class Radiotelegraph Operator's Certificate;
    (2) T-2: Second Class Radiotelegraph Operator's Certificate;
    (3) G: General Radiotelephone Operator License.
    (c) While at sea, all adjustments of radio installations, servicing, 
or maintenance of such installations that may affect the proper 
operation of the GMDSS station must be performed by, or under the 
immediate supervision and responsibility of, a qualified GMDSS radio 
maintainer as specified in paragraph (b) of this section.

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    (d) The GMDSS radio maintainer must possess the knowledge covering 
the requirements set forth in IMO Assembly on Training for Radio 
Personnel (GMDSS), Annex 5 and IMO Assembly on Radio Maintenance 
Guidelines for the Global Maritime Distress and Safety System related to 
Sea Areas A3 and A4.