9.—(1) Article 19 (regulatory authorities) is amended as follows.
(2) For the heading substitute “The regulatory authority”.
(3) In the first sentence—
(a)for “authorities” substitute “authority”;
(b)for “their” substitute “its”;
(c)at the end, insert “before exit day in so far as they are retained EU law (including such Guidelines as amended from time to time)”.
(4) Omit the second sentence.