(1) The prescribed provisions of the 1974 Act shall apply within territorial waters or a designated area to and in relation to—
(a) any pipeline;
(b) any pipeline works;
(c) the following activities in connection with pipeline works—
(i) the loading, unloading, fuelling or provisioning of a vessel;
(ii) the loading, unloading, fuelling, repair and maintenance of an aircraft on a vessel,
being in either case a vessel which is engaged in pipeline works.
(2) In this article—
“pipeline” means a pipe or system of pipes for the conveyance of any thing, together with—
any apparatus for inducing or facilitating the flow of any thing through, or through a part of, the pipe or system;
any apparatus for treating or cooling any thing which is to flow through, or through part of, the pipe or system;
valves, valve chambers and similar works which are annexed to, or incorporated in the course of, the pipe or system;
apparatus for supplying energy for the operation of any such apparatus or works as are mentioned in the preceding paragraphs;
apparatus for the transmission of information for the operation of the pipe or system;
apparatus for the cathodic protection of the pipe or system; and
a structure used or to be used solely for the support of a part of the pipe or system;
but not including a pipeline of which no initial or terminal point is situated in the United Kingdom or within territorial waters, United Kingdom territorial waters adjacent to Northern Ireland, or a designated area;
“pipeline works” means—
assembling or placing a pipeline or length of pipeline including the provision of internal or external protection for it;
inspecting, testing, maintaining, adjusting, repairing, altering or renewing a pipeline or length of pipeline;
changing the position of or dismantling or removing a pipeline or length of pipeline;
opening the bed of the sea for the purposes of the works mentioned in sub-paragraphs (a) to (c) of this definition, and tunnelling or boring for those purposes;
any activities incidental to the activities described in sub-paragraphs (a) to (d) of this definition;
diving operations in connection with any of the works mentioned in sub-paragraphs (a) to (e) of this definition or for the purpose of determining whether a place is suitable as part of the site of a proposed pipeline and the carrying out of surveying operations for settling the route of a proposed pipeline.