Technical Standards & Safety Authority (TSSA)
The TSSA ensures that equipment and appliances associated with the transportation, usage and handling of oil and gas comply with Ontario's laws. TSSA also works with industry groups to help raise public awareness about fuels safety, specifically to educate the public about the risk of carbon monoxide poisoning.
http://www.tssa.org/regulated/fuels/heating/default.asp

Canadian Oil Heat Association
The Canadian Oil Heat Association dedicates itself to advancing the cause of oil heating in Canada. Its members pledge to provide their customers with the finest quality services and goods, to continue to be good corporate neighbours, to care for and help protect the environment.
http://www.coha.ca/

Ontario Association of Home Inspectors
The Ontario Association of Home Inspectors Act defines qualification and performance requirements and has the exclusive right to grant the designations "Registered Home Inspector" and "RHI" to qualified members in the Province of Ontario.
http://www.oahi.com/public/baseline.asp