18(1)If in the opinion of the Secretary of State the sheltered nature and conditions of international voyages—
(a)between near neighbouring ports in the United Kingdom and in another Convention country, or
(b)between near neighbouring ports in any two or more countries or territories outside the United Kingdom,
make it unreasonable or impracticable to apply the provisions of this Schedule to ships plying on such voyages, and the Secretary of State is satisfied that the Government of the other country or territory (or, as the case may be, of each of the other countries or territories) concurs in that opinion, the Secretary of State may by order specifying those ports direct that ships plying on international voyages between those ports, or any class of such ships specified in the order, shall be exempt from the provisions of this Schedule.
(2)The Secretary of State may by order direct that ships under 80 tons register engaged solely in the coasting trade, or any class of such ships specified in the order, shall be exempt from the provisions of this Schedule while not carrying cargo, or (if the order so provides) shall be exempt from the provisions of this Schedule whether carrying cargo or not.
(3)Any order under this paragraph may be made subject to such conditions as the Secretary of State thinks fit; and, where any such order is made subject to conditions, the exemption conferred by that order shall not have effect in relation to a ship unless the ship complies with those conditions.
19(1)In this paragraph any reference to exempting a ship is a reference to exempting the ship either—
(a)from all the provisions of this Schedule and of the load line rules, or
(b)from such of those provisions as are specified in the instrument conferring the exemption.
(2)On the application of the owner of a United Kingdom ship to which this Schedule applies which is either a pre-1966 Convention ship of not less than 150 tons gross tonnage or a post-1966 Convention ship of not less than 24 metres in length, the Secretary of State may exempt the ship if in his opinion the ship embodies features of a novel kind such that, if the ship had to comply with all the requirements of this Schedule and of the load line rules, the development of those features and their incorporation in ships engaged on international voyages might be seriously impeded.
(3)On the application of the owner of a United Kingdom ship to which this Schedule applies which is either—
(a)a pre-1966 Convention ship of less than 150 tons gross tonnage or a post-1966 Convention ship of less than 24 metres in length, or
(b)a ship (not falling within (a) above) which does not ply on international voyages,
the Secretary of State may exempt the ship.
(4)Without prejudice to sub-paragraph (3) above, where a United Kingdom ship to which this Schedule applies which is either a pre-1966 Convention ship of not less than 150 tons gross tonnage or a post-1966 Convention ship of not less than 24 metres in length, does not normally ply on international voyages but is, in exceptional circumstances, required to undertake a single international voyage, the Secretary of State, on the application of the owner of the ship, specifying the international voyage in question, may exempt the ship while engaged on that voyage.
(5)Any exemption conferred under this paragraph may be conferred subject to such conditions as the Secretary of State thinks fit; and, where any such exemption is conferred subject to conditions, the exemption shall not have effect unless those conditions are complied with.
20(1)Where the Secretary of State exempts a ship under paragraph 19 of this Schedule, the Secretary of State shall issue the appropriate certificate to the owner of the ship.
(2)For the purposes of this paragraph the appropriate certificate—
(a)where the exemption is conferred under sub-paragraph (2) or sub-paragraph (4) of paragraph 19 of this Schedule, is an “International Load Line Exemption Certificate”, and
(b)where the certificate is conferred under sub-paragraph (3) of that paragraph, is a “United Kingdom load line exemption certificate”.
(3)Any certificate issued under this paragraph shall be in such form, and shall be issued in such manner, as may be prescribed by the load line rules.
21(1)The load line rules shall make provision for determining the period during which any exemption conferred under paragraph 19 of this Schedule, or any certificate issued under paragraph 20 of this Schedule, is to remain in force, including—
(a)provision enabling the period for which any exemption or certificate is originally conferred or issued to be extended within such limits and in such circumstances as may be prescribed by the rules, and
(b)provision for terminating any such exemption, and for cancelling any such certificate, in such circumstances as may be so prescribed.
(2)While any such certificate is in force in respect of a ship, there shall be endorsed on the certificate such information relating to—
(a)periodical inspections of the ship in accordance with the load line rules, and
(b)any extension of the period for which the certificate was issued,
as may be prescribed by the rules.
22(1)The load line rules shall make such provision as appears to the Secretary of State to be appropriate for securing that exemption certificates which, in accordance with the Convention of 1966, are issued in respect of ships to which paragraph 12 of this Schedule applies, and are so issued by Governments other than Her Majesty’s Government in the United Kingdom, shall in such circumstances as may be prescribed by the rules have the like effect for the purposes of this Schedule as if they were valid Convention certificates.
(2)Certificates issued as mentioned in sub-paragraph (1) above shall be included among “International Load Line Exemption Certificates”.