The Workplace Hazardous Materials Information System (WHMIS) is Canada's national standard for communicating information about hazardous workplace products.

WHMIS is incorporated into the Occupational Health and Safety Act and is law in the province of Ontario. This legislation states that if you work with, or in proximity to controlled products, the employer must ensure the information you need to work safely with those hazardous products is available to you and understood.

See the WHMIS 2015 Program  for more information.


All University of Waterloo employees are required to complete an online WHMIS 2015 training module. The following training is available through the Safety Office:

Employee WHMIS Training

Student Safety Orientation/WHMIS Training

Additional resources and information

Chemical Safety at the University of Waterloo

Canadian Centre for Occupational Health and Safety