Q-2, r. 4.1 - Clean Air Regulation

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21. The operator of a source of emission referred to in section 19 must maintain a record indicating for each day of operation and for each type of organic solvent used or each type of substance that contains organic solvents, the volumes used in litres, their volatile organic compound content and all other data necessary to calculate volatile organic compound emissions.
O.C. 501-2011, s. 21.