22.—(1) Subject to paragraph (2), a person shall not cause or permit to be carried in any freight container, tank container, tank wagon or wagon any radioactive material where the radiation level, under conditions likely to be encountered in routine carriage, would exceed 2 mSv/h at any point on, and 0·1 mSv/h at 2 m from, the external surfaces of the freight container, tank container, tank wagon or wagon concerned.
(2) A person shall not cause or permit to be carried in any freight container, tank container, tank wagon or wagon a consignment under exclusive use where the radiation level exceeds the limits specified in Schedule 11.