115.21. The imposition of a monetary administrative penalty for failure to comply with the Act or the regulations is prescribed by two years as of the date of the failure to comply.
However, if false representations have been made to the Minister, or to a functionary, employee or other person referred to in any of sections 119 to 120.1, or if a failure to comply relates to hazardous materials referred to in Division VII.1 of Chapter I, or to section 20, the monetary administrative penalty may be imposed within two years after the date on which the inspection or investigation that led to the discovery of the failure to comply was begun.
In the absence of evidence to the contrary, the certificate of the Minister, inspector or investigator constitutes conclusive proof of the date on which the inspection or investigation was begun.