9.—(1) If the Director wishes to revoke an approval given under these Regulations, he shall publish in such manner as he considers appropriate—
(a)his wish to revoke the approval;
(b)the fact that he has prepared written reasons for the revocation; and
(c)the date on which he wishes the revocation to take effect,
and he shall invite representations within a period of not less than 28 days from the date of publication.
(2) The Director shall send a copy of his written reasons free of charge to any person who requests one before the approval is revoked.
(3) After considering any representations made under paragraph (1) the Director may revoke the approval in writing stating the date on which the revocation of the approval takes effect and shall publish notice of the revocation in such manner as he considers appropriate, provided that the revocation shall not take effect earlier than 28 days from the date on which notice of revocation is published.
(4) Where the approval of the pattern or construction of a meter has been revoked, every meter of that pattern or construction used to ascertain the quantity of electricity supplied by an electricity supplier shall be replaced with a meter of an approved pattern or construction within six months of the date on which the revocation takes effect.
(5) Where the approval of the manner of installation of a meter has been revoked, every meter installed in that manner which is used as aforesaid shall be installed in an approved manner within six months of the date on which the revocation takes effect.