Subject to the provisions of this section, as from the appointed day no person shall, except in accordance with an authorisation granted in that behalf under this subsection, dispose of any radioactive waste on or from any premises which are used for the purposes of an undertaking carried on by him, or cause or permit any radioactive waste to be so disposed of, if (in any such case) he knows or has reasonable grounds for believing it to be radioactive waste.

Where any person keeps any mobile radioactive apparatus for the purpose of its being used in F1activitiesto which section three of this Act applies, he shall not, on or after the appointed day, dispose of any radioactive waste arising from any such apparatus so kept by him, or cause or permit any such radioactive waste to be disposed of, except in accordance with an authorisation granted in that behalf under this subsection.

Where on or after the appointed day any person, in the course of the carrying on by him of an undertaking, receives any radioactive waste for the purpose of its being disposed of by him, he shall not, except in accordance with an authorisation granted in that behalf under this subsection, dispose of that waste, or cause or permit it to be disposed of, knowing or having reasonable grounds for believing it to be radioactive waste:

Subsections (1) and (3) of this section shall not apply to the disposal of any radioactive waste arising from clocks or watches:

Without prejudice to the last preceding subsection, the F2Secretary of Statemay by order exclude particular descriptions of radioactive waste from any of the provisions of this section, either absolutely or subject to limitations or conditions; and accordingly such of those provisions as may be specified in an order under this subsection shall not apply to a disposal of radioactive waste if it is radioactive waste of a description so specified, and (where the exclusion is subject to limitations or conditions) the limitations or conditions specified in the order are complied with.