(1)In this Chapter—
“common enforcement power” means any power conferred by sections 246 to 261;
“enforcement officer” has the meaning given by section 245;
“item” has the meaning given by section 250(10);
“justice” has the meaning given by section 249(5);
“marine installation” means any artificial island, installation or structure (other than a vessel);
“premises” has the meaning given by section 247(4);
“relevant activity”, “relevant function” and “relevant offence” have the meaning given by section 245;
“the relevant premises”, in relation to an enforcement officer exercising a power of inspection conferred by section 246, 247 or 248, means the vessel, marine installation, premises or vehicle in relation to which the power is being exercised.
(2)In this Chapter any reference to a vessel includes a reference to—
(a)any ship or boat or any other description of vessel used in navigation,
(b)any hovercraft, submersible craft or other floating craft, and
(c)any aircraft,
but does not include a reference to anything that permanently rests on, or is permanently attached to, the sea bed.