Transport Canada had delegated the responsibility for oversight of the business aviation sector to an industry association back in 2003. Following an investigation that the TSB conducted, and recommendations we made in 2009, Transport Canada decided to take back responsibility for oversight of the business aviation sector.
That was implemented starting in about 2012. Transport Canada was conducting some audit, some inspections of business aviation operators, but this particular operator had not received any such inspections since the time it was created, or it went into operation.
Furthermore, Transport Canada suspended planned surveillance of business aviation operators in 2016, just prior to this accident, and it recently announced that it is reinstating planned surveillance of the business aviation sector going forward in 2018.