Every workplace contains hazards, though not all of them announce themselves with warning signs or obvious danger. A hazard is any source of potential harm, whether that harm manifests as physical injury, psychological damage, illness, or property loss. The process of identifying these hazards before they cause harm sits at the very heart of occupational health and safety law across Canada. Without systematic hazard identification, employers cannot fulfill their fundamental duty to protect workers, and employees cannot meaningfully participate in keeping themselves and their colleagues safe. This lesson examines how Canadian workplaces identify hazards, what events or circumstances should trigger renewed identification efforts, and who bears responsibility for this critical ongoing function.
The legal foundation for hazard identification flows from the general duty clauses found in occupational health and safety legislation across all Canadian jurisdictions. The Canada Labour Code, which governs federally regulated workplaces such as banks, telecommunications companies, interprovincial transportation, and federal Crown corporations, imposes on employers the duty to ensure that the health and safety of every person employed by them is protected while working. As of the date of authorship, this duty appears in Part II of the Code and has been interpreted consistently to require proactive measures, not merely reactive responses to incidents that have already occurred. Provincial legislation mirrors this approach. British Columbia's Workers Compensation Act and the Occupational Health and Safety Regulation made pursuant to it require employers to identify and assess hazards arising from the work being performed. Alberta's Occupational Health and Safety Act demands that employers ensure the health and safety of workers and other persons at or near the worksite, a duty that necessarily implies knowing what hazards exist. Saskatchewan's Saskatchewan Employment Act contains similar provisions, as does Ontario's Occupational Health and Safety Act, which places a general duty on employers to take every precaution reasonable in the circumstances for the protection of workers. Quebec's approach through the Act respecting occupational health and safety similarly requires employers to identify, control, and eliminate dangers to worker health and safety, though the province's distinct civil law tradition and its integration of prevention programs through the Commission des normes, de l'équité, de la santé et de la sécurité du travail adds unique procedural dimensions that employers operating in that jurisdiction must understand.