4.—(1) Any reference in an enactment to the old competent authority shall have effect as a reference to the new competent authority.
(2) Any reference in an enactment to the Official List maintained for the purposes of Part IV by the old competent authority shall have effect as a reference to the Official List maintained for those purposes by the new competent authority.
(3) Paragraphs (1) and (2) apply however the reference is expressed.
(4) If a reference in a relevant provision is predicated on the continuing exercise by the old competent authority of any of the transferred functions, paragraphs (1) to (3) shall, in relation to any time after the transfer date, apply to the reference in the same way as they apply to a reference in an enactment.
(5) In paragraph (4), “relevant provision” means a provision which—
(a)has effect before, as well as after, the transfer date, and
(b)is contained in a document other than an enactment.