[F1Revocation of approval of pattern and constructionE+W+S
4A.—(1) The Secretary of State may, after consultation with such persons appearing to him to be interested as he thinks fit, revoke any approval of pattern and construction which was granted under section 17(3) of the Gas Act 1986 or for the purpose of regulation 3A(2)(a) above after the date on which these Regulations come into force if he considers that—
(a)meters of the approved pattern and construction have revealed in service a defect of a general nature which makes them unsuitable for their intended use; or
(b)meters of the approved pattern and construction can no longer be manufactured so as to comply with standards applicable under regulation 3 above.
(2) Where the Secretary of State revokes an approval of pattern and construction under paragraph (1) above—
(a)he shall give a statement in writing of his grounds for doing so to any person appearing to him to be concerned; and
(b)he may publish in the London and Edinburgh Gazettes a notice requiring all meters of the pattern and construction in question used for the purpose of ascertaining the quantity of gas supplied through pipes to any person to be replaced within a period of six months beginning with the date of the notice.
(3) The Secretary of State may at any time withdraw a notice under paragraph (2)(b) above by publishing a notice of withdrawal in the London and Edinburgh Gazettes.]