5.—(1) Subject to paragraph (2) of this article, the prescribed provisions of the 1974 Act apply within the territorial sea or a designated area to and in relation to—
(a)a well and any activity in connection with it; and
(b)an activity which is immediately preparatory to any activity in sub-paragraph (a) above.
(2) Paragraph (1) of this article includes keeping a vessel on station for the purpose of working on a well but otherwise does not include navigation or an activity connected with navigation.