4.—(1) This paragraph applies to the following radioactive substances activities—
(a)the activity described in paragraph 11(2)(c) of Part 2 of this Schedule (“Activity A”), and
(b)the activity described in paragraph 11(4) of Part 2 of this Schedule (“Activity B”).
(2) In this paragraph, “paragraph 5 waste” means radioactive waste described in paragraph 5.
(3) A person (“A”) is exempt from the requirement for an environmental permit to carry on Activity A or B, in respect of radioactive waste which is stored in transit.
(4) Subject to sub-paragraph (5), a person (“B”) is exempt from the requirement for an environmental permit to carry on Activity A or B in respect of paragraph 5 waste where—
(a)B receives that waste for accumulation on premises (with a view to its subsequent management by B on those premises),
(b)in respect of those premises B manages substantial quantities of waste which is not radioactive waste, and
(c)the management of the radioactive waste will be completed by B as soon as is reasonably practicable, with the radioactive waste dispersed in non-radioactive waste.
(5) B is not exempt under sub-paragraph (4) from the requirement for an environmental permit to carry on Activity B where the waste received by B is or contains a high-activity source.
(6) A person (“C”) is exempt from the requirement for an environmental permit to carry on Activity A in respect of paragraph 5 waste, where C complies with the relevant standard conditions and—
(a)in respect of radioactive waste described in paragraph 5(1)(a), the condition in paragraph 6(1), and
(b)in respect of radioactive waste described in paragraph 5(1)(b), the condition in paragraph 6(2).
(7) A person (“D”) is exempt from the requirement for an environmental permit to carry on Activity A in respect of radioactive waste which is a sealed source, an electrodeposited source or a tritium foil source which—
(a)contains a quantity of radionuclides which exceeds the value specified in column 2 of Table 4 in respect of the relevant type of source,
(b)immediately before it became radioactive waste, was radioactive material in the form of a sealed source, an electrodeposited source or a tritium foil source (as appropriate), and
(c)has not been received by D for the purpose of D disposing of it,
where D complies with the relevant standard conditions.