9Vessels in inland or coastal waters
(1)For the purposes of the provisions of this Act specified in subsection (2) below, a vessel lying in any inland or coastal waters shall—
(a)if those waters are within a port health district, be subject to the jurisdiction of the port health authority for that district,
(b)if those waters are within the district of a local authority but not within a port health district, be subject to the jurisdiction of that local authority,
(c)if those waters are not within the district of any local authority or any port health district, be subject to the jurisdiction of such local authority as the Secretary of State may from time to time by order made by statutory instrument direct or, if no such direction is given, within the jurisdiction of the local authority whose district includes that point on land which is nearest to the spot where the vessel is lying.
(2)The provisions of this Act referred to in subsection (1) above are the provisions of Part II (other than section 39 to 42), Part III (other than section 46), Part V (other than section 56) and Part VI.
(3)The provisions so specified shall have effect in relation to any such vessel as if—
(a)it were a house, building or premises within the district of the port health authority or local authority to whose jurisdiction it is subject, and
(b)the master, or other officer or person in charge of the vessel, were the occupier.
(4)This section does not apply—
(a)to any vessel belonging to Her Majesty or under the command or charge of an officer holding Her Majesty's commission, or
(b)to any vessel belonging to a foreign government.