If agreement not complied with

(1) If the Commissioner is of the opinion that a contracting party has not complied with a provision of a compliance agreement, the Commissioner shall cause a notice of default to be served on the contracting party, informing it that, as the case may be,

(a) a notice of violation may be served on the contracting party as a result of the failure to comply with the provision of the compliance agreement;

(b) a prosecution may be instituted against the contracting party in respect of any act or omission that led to the agreement; or

(c) if a prosecution in respect of any act or omission that led to the agreement was suspended by virtue of subsection 517(8), it may be resumed.