Designated Substance Control Plan

There are 11 designated substances in Ontario that have been determined to be toxic. Designated substances in the workplace include: acrylonitrile, arsenic, asbestos, benzene, coke oven emissions, ethylene oxide, isocyanates, lead, mercury, silica and vinyl chloride.

It is the responsibility of building owners and employers to properly identify the Designated Substances that are present at their site and to limit the airborne exposure to all parties who may become exposed, through a developed and implemented control program. All information regarding designated substances must also be provided to all bidders at the tendering stage as a requirement of the Ontario Occupational Health and Safety Act.

Our consultant will assess the exposure or likelihood of exposure and based on the sampling results develop measures and procedures to control the workers exposure to the substance and incorporate them into a control program that will comply with the legislation.

Legislative Reference

Ont. Reg. 490/09 – Designated Substances – Control Program
s. 20. (a) develop, establish, put into effect and maintain measures and procedures to control the worker’s exposure to the designated substance