Each country sets its own safety standards. Most countries belong to ICAO, and ICAO has recommended standards and practices. Canada is obviously a leading member of ICAO and like most developed countries adopts most of those standards and practices. Each country sometimes has reservations about individual ones, but I think Canada is seen from an aviation point of view as probably the safest country on earth, if not in the top two or three.
On May 31st, 2012. See this statement in context.