15.—(1) Radioactive material whose transport is otherwise prohibited by regulation 8 or 13 or prohibited except under exclusive use by regulation 14(2) may be transported under special arrangement with multilateral approval.
(2) Approval may not be given by the Secretary of State to the transport of a consignment by special arrangement unless the provisions for such transport are adequate to ensure that the overall level of safety in transport and in-transit storage is at least equivalent to that which would have been achieved if all the applicable requirements of these Regulations had been met.
(3) Application for approval by the Secretary of State of a shipment under special arrangement shall be made in accordance with the provisions of Schedule 28.
(4) The approval of a shipment by the Secretary of State under this regulation shall be given by the issue of a special arrangement approval certificate.
(5) The approval by the competent authority of another state of a shipment under special arrangement shall be evidenced by a special arrangement approval certificate issued by that competent authority.