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(1)On the first review of the first environmental improvement plan, the Secretary of State must revise the plan so as to—
(a)set at least one interim target in respect of each relevant matter, and
(b)secure that there is at all times, until the end of the 5 year period beginning with the relevant date, an interim target set by the plan in respect of each relevant matter.
(2)On any other review of an environmental improvement plan, the Secretary of State must make any revisions to the plan which are necessary in order to—
(a)set at least one interim target in respect of any matter that has become a relevant matter since the previous review, and
(b)secure that there is at all times, until the end of the 5 year period beginning with the relevant date, an interim target set by the plan in respect of each relevant matter.
(3)A “relevant matter” means any matter in respect of which there is a target under sections 1 to 3.
(4)Subsection (2)(b) does not apply in respect of a matter if the specified date for the target under sections 1 to 3 in respect of that matter is before the end of the 5 year period beginning with the relevant date.
(5)On a review of an environmental improvement plan, the Secretary of State may revise or replace any interim targets set by the plan in respect of a relevant matter (subject to subsection (2)(b), where it applies in respect of the matter).
(6)An interim target in respect of a matter must specify—
(a)a standard to be achieved, which must be capable of being objectively measured, and
(b)a date by which it is to be achieved.
(7)The date must be no later than the end of the 5 year period beginning with—
(a)for the first interim target in respect of a matter, the relevant date;
(b)for subsequent interim targets in respect of a matter, the later of the relevant date and the date specified for the previous interim target.
(8)Before setting or revising an interim target in respect of a matter the Secretary of State must be satisfied that meeting the target, or the revised target, would make an appropriate contribution towards meeting the target under sections 1 to 3 in respect of that matter.
(9)The “relevant date” is the date on which the review is completed.