Within the Occupational Health and Safety Act of Ontario, there are certain substances identified as hazardous that are called Designated Substances. These hazardous building materials may be present within your home or business, and should not be removed or disturbed without the presence of a certified professional.
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Under Ontario’s legislation, there are currently 11 designated substances:
Coke Oven Emissions
When Is It Necessary
A DSS (Designated Substances Survey) is required prior to any construction job, from demolitions, to renovations or restorations. An inspection is considered mandatory in order to take the steps necessary for a safe and healthy working environment, preventing unsafe exposure from hazardous materials.
What a Designated Substances Survey Includes
A Designated Substances Survey is tailored according to the particular space being inspected. A typical DSS consists of:
— An extensive visual examination for all designated substances
— The collection of physical samples for further testing by third-party, accredited laboratories
— Air testing for lab analysis
— A detailed report that meets the requirements of the Ministry of Labour