Regulation 24 Issue of INLS Certificate
Upon satisfactory completion of an initial or periodical survey the Secretary of State shall issue to a ship which complies with the relevant requirements of these Regulations (except one to which a BCH Code Certificate or an IBC Code Certificate is to be issued) an INLS Certificate. Such certificate shall be issued for a period not exceeding 5 years beginning on the date of completion of the survey in question.
Where a chemical tanker in respect of which a BCH Code Certificate or an IBC Code Certificate has been or is to be issued is so constructed, equipped and arranged that it would, but for the exception contained in paragraph (1), be entitled under that paragraph to an INLS certificate covering substances other than those listed in the BCH Code or the IBC Code as the case may be, the Secretary of State shall, if the owner of the chemical tanker so requests, include in the BCH Code Certificate or IBC Code Certificate as the case may be, provisions covering carriage of those substances by that chemical tanker.
An INLS Certificate shall cease to be valid—
if any survey required by regulation 23(1)(c) or (d) is not completed within the period specified for that survey; or
if any survey required by regulation 23(1)(e) is not completed within such reasonable time as the surveyor may specify; or
upon transfer of the ship to registry in another state.
In either of the cases specified in sub-paragraphs (a) or (b) of paragraph (2) the owner shall deliver up the certificate issued in relation to the ship to the Secretary of State on demand.
In the case of a ship which has transferred from registry in another state party to MARPOL 1973/78 to registry in the United Kingdom the Secretary of State may, subject to such requirements as to survey or otherwise as he may think fit, if he is satisfied that, notwithstanding that the surveys were not carried out by a surveyor appointed by the Secretary of State as required by regulation 23(2)—
the ship has already been subjected to a satisfactory initial or periodical survey and to any intermediate, annual or additional surveys required; and
the ship was issued by or on behalf of the government of that other state with an INLS Certificate which would, but for the change of registry, have remained valid; and
the condition of the ship and its equipment has been maintained in conformity with the provisions of these Regulations; and
since completion of the surveys referred to in sub-paragraph (a) no change has been made in the structure, equipment, systems, fittings, arrangements and materials covered by those surveys without the sanction of the government of that other state or of the Secretary of State, except by direct replacement;
issue to that ship an INLS Certificate for a period to be determined by the Secretary of State, but expiring not later than the expiry date of the certificate referred to in sub-paragraph (b).
The INLS Certificate shall be kept on board the ship and shall be available for inspection at all reasonable times.