Interpretation

2.—(1) In this Order, unless the context otherwise requires—

“the 1974 Act” means the Health and Safety at Work etc. Act 1974;

“designated area” means any area designated by order under section 1(7) of the Continental Shelf Act 1964(1) and “within a designated area” includes over and under it;

“offshore installation” shall be construed in accordance with article 4(2) and (3) of this Order;

“the prescribed provisions of the 1974 Act” means sections 1 to 59 and 80 to 82 of the 1974 Act;

“stand-by vessel” means a vessel which is ready to give assistance in the event of an emergency on or near an offshore installation;

“territorial waters” means United Kingdom territorial waters adjacent to Great Britain and “within territorial waters” includes on, over and under them;

“vessel” includes a hovercraft and any floating structure which is capable of being staffed.

(2) For the purposes of this Order, any structures and devices on top of a well shall be treated as forming part of the well.

(3) For the purposes of this Order, a person shall be deemed to be engaged in diving operations throughout any period from the time when he commences to prepare for diving until the time when—

(a)he is no longer subjected to raised pressure;

(b)he has normal inert gas partial pressure in his tissues; and

(c)if he entered the water, he has left it,

and diving operations include the activity of any person in connection with the health and safety of a person who is, or is deemed to be, engaged in diving operations.