Workplace Hazardous Materials Information System

The Workplace Hazardous Materials Information System (WHMIS) was revised in 2018. Revisions included the following:

  • New classes of hazards.
  • All new pictograms/symbols.
  • Revised labeling requirements.
  • Changes to contents of "safety data sheets" (SDS) (versus material safety data sheets [MSDS]).

How This Affects You

If you work with hazardous products at the university:

For questions about the program, contact HSE .

Symbols + Hazard Categories

WHMIS has a set of hazard categories and pictograms and symbols. Refer to the Canadian Centre for Occupational Health and Safety (CCOHS) WHMIS 2015 - Pictograms fact sheet  to learn more.

WHMIS Symbols

Labeling Requirements

Supplier labels have a few new requirements. Review the WHMIS labels information document  for more information.

Here are some workplace label templates to get you started:

WHMIS labeling

Safety Data Sheets

Safety data sheets (SDSs) replace material safety data sheets (MSDSs) and include more information. Refer to the SDS information document  for details.

Have Questions? Ask HSE