154. The carrier shall ensure that the following are not transported by air:
(a) a vented Type B (M) package;
(b) a package requiring external cooling by an ancillary cooling system;
(c) a package subject to operational controls during transport; and
(d) package containing liquid pyrophoric materials.
155. The carrier shall ensure that a package or overpacks with a surface dose rate greater than 2 mSv/h, is not transported by air except under special arrangement.
156. A Type B (M) package or a consignment under exclusive use shall not be transported on any passenger aircraft.