9. After regulation 26 (Schedule 1 conditions: large combustion plants) insert—
26A.—(1) SEPA must ensure that a permit contains such conditions as it considers necessary to give effect to the provisions of schedule 1B.
(2) SEPA may set stricter permit conditions than those required by paragraph (1).
(3) The Scottish Ministers may direct SEPA to include stricter emission limit values than required by the provisions of schedule 1B provided that, in the opinion of the Scottish Ministers, applying such emission limit values would effectively contribute to a noticeable improvement of air quality.”