WHMIS – GHS Training objectives are to train all employees with a basic understanding of federal WHMIS legislation (administered by Health Canada) to provide those workers who handle hazardous substances in the workplace with more extensive training based on their specific substances. The Occupational Health and Safety Act (OHSA) generally requires employers to ensure hazardous products are identified, to obtain safety data sheets and make them available in the workplace and to provide instruction and training to workers. The WHMIS Regulation (R.R.O. 1990, Regulation 860) sets out in detail the employer’s duties respecting labels and safety data sheets for hazardous products and prescribes the content and delivery of worker education programs. The regulation also sets out the types of confidential business information the employer may withhold from a label or safety data sheet.

WHMIS – GHS Training Theory Outline (2 Hours):

  • When the Act came into effect
  • Review of background information
  • What is included and what is not
  • Expectations of WHMIS – GHS
  • WHMIS hazard class symbols
  • Labeling requirements
  • Preventative measures
  • Risk phrases and common hazards
  • Protective measures and equipment
  • First aid and emergency procedures
  • Material safety data sheets
  • Routes of entry and what is toxicity


Who Requires WHMIS – GHS Training?

Ontario’s WHMIS legislation applies to all workplaces covered by the Occupational Health and Safety Act, with the exception of farms. In Ontario, the Ministry of Labour is responsible for the enforcement of both the federal and provincial WHMIS legislation. The OHSA and WHMIS Regulation do not apply to federally regulated workplaces such as banks, post offices and airports in Ontario. Instead, certain sections of the Canada Labour Code and the Canada Occupational Health and Safety Regulations implement WHMIS in federal workplaces and are enforced by inspectors of the federal government’s labour program.

Chemicals and Gases Safety Training

What Does “GHS” Stands For?

GHS stands for the “Globally Harmonized System” of classification and labelling of chemicals. GHS defines and classifies the hazards of chemical products and communicates health and safety information on labels and safety data sheets. The goal is that the same set of rules for classifying hazards, and the same format and content for labels and safety data sheets (SDS) will be adopted and used around the world. (CCOHS, 2018)


What are Designated Substances?

A designated substance is defined by the Ministry of Labour under the Occupational Health and Safety Act as “a biological, chemical or physical agent or combination thereof prescribed as a designated substance to which the exposure of a worker is prohibited, regulated, restricted, limited or controlled.”  An exposure means exposure by inhalation, ingestion, skin absorption or skin contact.  Designated substances include the following hazardous materials:

  • Arsenic
  • Asbestos
  • Benzene
  • Coke Oven Emissions
  • Ethylene Oxide
  • Isocyanates
  • Lead
  • Mercury
  • Silica
  • Vinyl Chloride

(Carleton University, 2019)


Need a WHMIS inventory audit? We can help!

If you require an audit of your workplace hazardous chemicals to ensure your SDS sheets and systems are up-to-date, give us a call to set up a WHMIS inventory audit at your facility.


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