23.—(1) This regulation applies where the regulator has decided to revoke an environmental permit, or part of a permit, and the regulator considers that, after the revocation takes effect, it is appropriate for the operator to take steps—
(a)to avoid a pollution risk resulting from the operation of the regulated facility; or
(b)to return the site of the regulated facility to a satisfactory state, having regard to the state of the site before the facility was put into operation.
(2) But this regulation does not apply if the revocation relates to any part of an environmental permit (or if applicable, the whole permit) that authorises the operation of a regulated facility of the following description—
(a)a Part B installation, except to the extent that it relates to a waste operation;
(b)mobile plant;
(c)a stand-alone water discharge activity or stand-alone groundwater activity.
(3) If the operator is already required to take the steps mentioned in paragraph (1) under the environmental permit, the revocation notice must specify the regulator’s view under paragraph (1) and state that paragraph (4) applies.
(4) The environmental permit continues to have effect to the extent that it requires the steps to be taken until the regulator issues a certificate stating that it is satisfied that all the steps have been taken.
(5) If the operator is not already required to take the steps mentioned in paragraph (1) under the environmental permit, the revocation notice must specify the regulator’s view under paragraph (1) and the steps to be taken.
(6) If paragraph (5) applies, unless the regulator issues a certificate stating that it is satisfied that all the steps have been taken, the steps must be treated as if they were conditions of an environmental permit for the purposes of—
(a)regulation 20;
(b)regulation 36; and
(c)the offence in regulation 38(2).