Q-2, r. 4.1 - Clean Air Regulation

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19. Organic solvents or substances that contain organic solvents must not be used in a manner that emits or allows the emission of volatile organic compounds into the atmosphere in excess of the limit of 100 kg per day.
Despite the first paragraph, volatile organic compound emissions may exceed 100 kg per day if the source of emission has a system that reduces on a daily basis at least 90% of the source’s volatile organic compound emissions.
O.C. 501-2011, s. 19.