18.—(1) Such number of certificated ratings as are required for the ship under the Safe Manning Document issued by the Director (in compliance with Resolution A.481 (XII) of the IMO and any amendment to the Resolution which has come into force) shall be carried on every ship to which these Regulations apply.
(2) Any certificate required by the Convention to be held by a rating shall be kept available in its original form on board the ship on which the certificated rating is serving.
(3) No rating may be certificated by the Director under these Regulations unless the rating is registered as a seaman under the Maritime and Port Authority of Singapore (Registration and Employment of Seamen) Regulations (Cap. 170A, Rg 8).
(4) Paragraph (3) shall not apply to a rating who is certificated by a foreign maritime administration in compliance with the Convention.
(5) Every rating forming part of —
(a)
a navigational watch on a seagoing ship of 500 tons or more; or
(b)
an engineering watch or designated to perform duties in a periodically unmanned engine-room on a seagoing ship of 750 kW power or more,
shall be certificated by the Director or by a foreign maritime administration to perform such duties.
(6) No person may be issued by the Director with a certificate entitling the holder to be part of a navigational or an engineering watch unless the person complies with the requirements set out in regulation II/4 or III/4 of the Convention, whichever is applicable.
(7) Every rating for certification shall, in addition to meeting the requirements of paragraph (5), meet the applicable requirements of Chapters V, VI and VIII of the Convention.
(8) The procedure and form of certification of ratings under this regulation is to be determined by the Director.