Below copied in part from:
Choosing a Home Inspector
The home inspection industry, with support from CMHC, Human Resources and Skills Development Canada and the Construction Sector Council, developed and validated a national occupational standard for home inspectors and a national certification program model to harmonize licensing, standards of performance and the certification of private home inspectors across the country. The purpose was to develop a rigorous and nationally consistent framework for the training and certification of home inspectors in Canada that potential homebuyers could use to identify qualified home inspectors. This national standard and certification program model also provides a way for home inspectors to demonstrate their knowledge and competence. You may ask whether an inspector has been certified by an organization based on this national occupational standard and national certification program model.