104. The requirement to keep a register in respect of the hazardous materials referred to hereafter for any person who has in his possession hazardous materials
— he has produced or used but has discarded,
— he has used and no longer uses for the same purpose or a purpose resembling its initial use,
— he has produced or has taken possession of with a view to utilization, but which are outdated, or
— he has produced or used and are mentioned in section 6 of this Regulation
shall apply to
(1) the persons who carry on an activity in a sector indicated in Schedule 3, in respect of each category of hazardous materials listed in Schedule 4, whose quantity exceeds 100 kg, where the quantity of those categories of more than 100 kg exceeds 1,000 kg;
(2) the persons who have in their possession materials and objects containing PCBs or contaminated by PCBs
(a) in respect of each category of those hazardous materials, listed in Schedule 4, whose quantity exceeds 100 kg; and
(b) in respect of each category of liquids, solids or substances containing PCBs where the quantity of PCBs contained in all thoses categories — other than those already entered in the register — exceeds 1 kg.
Notwithstanding the foregoing, the requirement to keep a register does not concern the following materials:
(1) hazardous materials that, according to the terms of a certificate of authorization issued under section 22 of the Environment Quality Act (chapter Q-2), are reused in an industrial process located on the site of their production or use within 120 days following their production or use;
(2) equipment containing PCBs or contaminated by PCBs where the equipment has not been used for at least 6 months; and
(3) hazardous materials referred to in paragraphs 3 to 5 and 8 of section 4 of this Regulation, where such materials are to be recycled or reused within 12 months following the date of their production or of their last use or following the date on which a material becomes unfit for its intended use.