2.—(1) In relation to employment concerned with exploration of the sea bed or subsoil or the exploitation of their natural resources, but subject to paragraph (2), subsections (1) and (2) of section 10 of the 1975 Act shall each have effect as if the last reference to Great Britain in those subsections included—
(a)any area for the time being designated under section 1(7) of the Continental Shelf Act 1964(1), except an area or part of an area in which the law of Northern Ireland applies; and
(b)in relation to employment concerned with the exploration or exploitation of the Frigg Gas Field, the part of the Norwegian sector of the Continental Shelf described in the Schedule to this Order.
(2) This Order shall have no application to employment which is concerned with the exploration or exploitation of the Frigg Gas Field unless the employer is—
(a)a company registered under the Companies Act 1985,
(b)an oversea company which has established a place of business within Great Britain from which it directs the offshore operations in question, or
(c)any other person who has a place of business within Great Britain from which he directs the offshore operations in question.