WHMIS study guide and books
Start with the free official guide — it is what the test is written from. Books only help if you want printed practice or a structured course.
- 5 official
Free
Official guide
CCOHS OSH Answers: WHMIS fact sheets
Canadian Centre for Occupational Health and Safety · Free online fact sheets (PDF downloads available)
The main source for this site. Short fact sheets on WHMIS in general, hazard classes, pictograms, labels, safety data sheets, education and training and the WHMIS program, last revised in May 2026. Read the Pictograms, Labels and SDS sheets first; they cover most quiz questions.
CCOHS: How to Work Safely with Hazardous Products (pictogram series)
Canadian Centre for Occupational Health and Safety · Free online fact sheets
One fact sheet per pictogram with the signal words, hazard statements, safe handling, storage and emergency steps for that hazard. The best free source for the safe handling and first-aid parts of a WHMIS course.
Workplace Hazardous Materials Information System: A guide to the legislation (Ontario)
Government of Ontario · Free online guide / printed copy on order
Explains how WHMIS works under Ontario's Occupational Health and Safety Act and Regulation 860: employer and worker duties, workplace labels, SDS access, training reviews and exemptions. Essential if you work in Ontario.
WHMIS.org — Canada's national WHMIS portal
Health Canada, provincial and territorial regulators and CCOHS · Free website
Links to the WHMIS rules for every province and territory, plus plain-language pages for suppliers, employers and workers. Use it to find the regulator for your own jurisdiction.
CCHST Réponses SST : SIMDUT (fiches d'information en français)
Centre canadien d'hygiène et de sécurité au travail · Gratuit en ligne
Official French version of the CCOHS WHMIS fact sheets (SIMDUT), for workers who take their training in French.