25.—(1) The Scottish Ministers may make plans for–
(a)the setting of limits on the total amount, or the total amount in any period, of emissions from all or any description of source within Scotland;
(b)the allocation of quotas relating to such emissions.
(2) Where the Scottish Ministers allocate a quota in a plan made under paragraph (1), they may also make a scheme for the trading or other transfer of the quota so allocated.
(3) In this regulation, “emissions” mean the direct or indirect release of any substance from individual or diffuse sources into the air, water or land.