Review of conditions of permits
11.—(1) SEPA shall periodically review the conditions of permits and may do so at any time.
(2) Without prejudice to paragraph (1), a review of a permit shall be carried out where–
(a)the pollution caused by the installation or mobile plant covered by the permit is of such significance that the existing emission limit values of the permit need to be revised or new emission limit values need to be included in the permit;
(b)substantial changes in the best available techniques make it possible to reduce emissions from the installation or mobile plant significantly without imposing excessive costs; or
(c)the operational safety of the activities carried out in the installation or mobile plant requires other techniques to be used.