8. The calibration of the sound level meter used to measure sound emissions produced by a motorcycle’s or moped’s exhaust system must be verified using a sound calibrator that complies with the requirements described in paragraph 2 of section 9 immediately before and after a series of measurements and, in the case where a series of measurements lasts more than 1 hour, it must also be verified so that not more than 1 hour has elapsed since the last verification.
588-2019O.C. 588-2019, s. 8.