15.—(1) Subject to paragraph (2), a person (“A”) is exempt from authorisation under section 13 in respect of the waste described in paragraph (3) where A disposes of that waste in accordance with the conditions in article 16 that apply to A.
(2) Paragraph (1) does not apply to A in respect of premises in respect of which A holds an authorisation under section 13 in respect of aqueous radioactive waste.
(3) Subject to paragraph (4), the waste referred to in paragraph (1) is aqueous radioactive waste—
(a)which is not described in an entry in column 1 of Table 3; and
(b)with a total concentration of radioactivity which does not exceed 100 Bq/ml.
(4) Paragraph (3) does not apply to waste—
(a)where a person has diluted it with the intention that—
(i)the waste has a concentration of radioactivity which is below the value in paragraph (3)(b); or
(ii)the condition in article 16(3)(a) or 16(4)(b) is complied with in respect of that waste; or
(b)where the person who generated that waste did not take all practicable measures available to minimise the quantity of radionuclides generated as waste.