162. The operator of a mine or an asbestos extraction or processing plant must, at least once a year, perform source emissions testing for each process referred to in section 158, calculate the asbestos fibre concentration, and for that purpose, measure each of the parameters necessary for the calculation.
The operator must also, at least once every 3 years, perform source emissions testing for each dust collector referred to in section 159 and have the samples analyzed to measure the asbestos fibre concentration for each of the parameters established in that section.