11.—(1) A person shall not cause or permit to be made any shipment of the following without multilateral approval of the shipment—
(a)a Type B(M) package especially designed to allow controlled intermittent venting;
(b)a Type B(M) package containing radioactive material with an activity greater than either—
(i)3×103 A1 or 3×103 A2, as appropriate, or
(ii)1000 TBq,
whichever is the lower; or
(c)packages containing fissile material where the sum of the Transport Indexes of the individual packages exceeds 50.
(2) An application for approval by the Secretary of State of a shipment falling within paragraph (1) shall include the information specified in Schedule 7.
(3) The approval by the Secretary of State of a shipment falling within paragraph (1) shall be given by the issue of a certificate.
(4) The approval by a competent authority other than the Secretary of State of a shipment falling within paragraph (1) shall be evidenced by a certificate issued by that competent authority.