• The Canadian Institute of Plumbing & Heating
• Ontario Plumbing Inspectors Association
• PRCO
• Mechanical Contractors Association of Canada
• http://www.rsescanada.com/
• Heating, Refrigeration and Air Conditioning Institute of Canada
• MCAT   

Associations

• Associated General Contractors
• Associated Builders & Contractors Inc (ABC)
• Canadian Construction Association (CCA)
• Canadian Home Builders Association (CHBA)
• Construction Specifications Institute (CSI)
• Council Of Ontario Construction Associations (COCA)
• Greater Toronto Home Builder's Association
• Toronto Construction Association

Ontario Links

• http://www.ontario.ca/
• http://www.ontarioimmigration.ca/en/index.htm
• OurOntario.ca Government Documents Collection
• http://www.mcscs.jus.gov.on.ca/english/default.html
• http://www.mgs.gov.on.ca/en/Home/index.htm