That is the procedure for electricity and gas. The accreditation program requires a quality management system that has to be put in place, and that includes the way the inspectors are trained and the work instructions, the work procedures. Measurement Canada does audits of the system every year, and audits of the products. There are "reinspections" every year as well. So there is a way for the Minister to oversee the work done by the accredited inspectors at Hydro-Québec or Gaz Métro, for example.
On October 19th, 2010. See this statement in context.