(b) for paragraph (3), substitute—  (a) 0.005% by weight, or less, of PCBs; or  (b) a total volume of 0.05dm3, or less, of PCBs.  (a) may be held until the end of its useful life; and  (b) must then be decontaminated in accordance with paragraph (4)(b) to (d), or  disposed of, as soon as possible.  (a) more than 0.005% but no more than 0.05% by weight of PCBs; and  (b) a total volume of more than 0.05dm3 of PCBs.  (a) may be held until the end of 31st December 2025; and  (b) must then be decontaminated in accordance with paragraph (4)(b) to (d), or  disposed of, as soon as possible.”;  (c) in paragraph (4)(a), for “less than 0.05% by weight and, if possible, to no more than  0.005% by weight” substitute “0.005% by weight, or less, or a total volume of 0.05dm3,  or less”;  (d) in paragraph (9)—  (i) in paragraph (a), for “(2), (3)” substitute “(2) to (3D)”;  (ii) in paragraphs (b) and (c), for “not contaminated”, in both places it occurs, substitute  “relevant”;  (e) after paragraph (9) insert—  (a) contains PCBs; or  (b) having contained PCBs, has not been decontaminated,  (a) the PCB volume of a power capacitor shall be measured by reference to all of the  separate elements of a combined set; and  (b) any thing of a type which may contain PCBs shall be treated as containing PCBs  unless it is reasonable to assume the contrary.”.  (a) 0.005% by weight, or less, of PCBs; or  (b) a total volume of 0.05dm3, or less, of PCBs,  2 “(ia) in a case to which paragraph (3A) of regulation 4 applies, as soon as possible  after the end of its useful life;  (7) For regulation 13(2)(c)(i), substitute—  (6) In regulation 10, in paragraph (1), for “(2), (3)” substitute “(2) to (3D)”.  (5) Omit regulation 6(2)(b).  may be labelled as “PCBs contaminated <0.005% or <0.05dm3.”.  “(3) Equipment in respect of which it is reasonable to assume that the fluids contain—  (4) For regulation 5(3) substitute—  other than one which contains a total volume of PCBs exceeding 0.05dm3.  (11) For the purposes of paragraph (10)—  (3D) A transformer to which this paragraph applies—  (3C) Paragraph (3D) applies to a transformer in respect of which it is reasonable to  assume that the fluids contain—  (3B) A transformer to which this paragraph applies—  “(3A) Paragraph (3B) applies to a transformer in respect of which it is reasonable to  assume that the fluids contain— 