reg 18 Assignments
(1) An operator may apply to the Secretary of State by notice for permission to assign a permit. (2) The Secretary of State must as soon as possible after receipt of the application give notice to the operator that— (a) the permit may be assigned within a time period specified in the notice (“permission notice”); or (b) the application is refused, together with the reasons for that decision. (3) Where— (a) a permission notice is given; and (b) the permit is assigned within the time period specified in that notice, the assignor and assignee must give notice to the Secretary of State as soon as possible of the completion of the assignment and the date it completed. (4) Where the permit relates to the operation of a large combustion installation the Secretary of State must as soon as possible make publicly available a notice given under paragraph (2).