26.2.1 The qualifications of the skipper and,
if appropriate, other members of the crew are given in Annex 3.
26.2.2 The possession of a Certificate of Competency
or Service should not, on its own, be regarded as evidence of the
ability to serve in a particular rank on a specific vessel. The owner(s)/managing
agent(s) must ensure that there are sufficient trained personnel on
board to work the vessel having due regard for the nature and duration
of the voyage.