6.—(1) Subject to sub-paragraph (2)—
(a)the construction, reconstruction, alteration, repair, maintenance, cleaning, demolition and dismantling of any building or other structure not being a vessel, or any preparation for any such activity;
(b)the loading, unloading, fuelling or provisioning of a vessel;
(c)diving operations;
(d)the construction, reconstruction, finishing, refitting, repair, maintenance, cleaning or breaking up of a vessel except when carried out by the master or any officer or member of the crew of that vessel; and
(e)the maintaining on station of a vessel which would be an offshore installation were it not a structure to which paragraph 2(5)(d) relates.
(2) Sub-paragraph (1) shall not apply to vessels which are registered outside the United Kingdom and are on passage through territorial waters.