Ontario Workplace Safety Resources
Authoritative references and standards for Ontario health and safety professionals, employers, and workers.
External References
Legislation, Guides & Standards
A Guide to the Act
Ontario's official plain-language guide to the Occupational Health and Safety Act — rights, duties, and how the legislation applies to your workplace.
View on Ontario.caOccupational Health & Safety Act
The full text of Ontario's OHSA statute — the foundational legislation governing workplace health and safety across the province.
Read the LegislationCanadian Standards Association
Access CSA Group's community portal for Canadian standards, codes, and technical publications covering safety, electrical, construction, and more.
Visit CSA GroupDuties of the Employer, Supervisor and Worker
Ontario's official guide to Part III of the OHSA — outlining the legal obligations of employers, supervisors, and workers to maintain a safe workplace.
Read the Duties GuideThe Rights of Workers
An overview of the Internal Responsibility System and the three fundamental rights every Ontario worker holds: the right to know, to participate, and to refuse unsafe work.
Learn About Worker RightsInjury Reporting Requirements
Ontario's requirements for reporting workplace incidents, injuries, illnesses, and structural hazards — who must report, to whom, and within what timeframes.
View Reporting RequirementsFunctions of Workplace Inspectors
How Ontario Ministry of Labour inspectors conduct workplace inspections and investigations, what compliance commitments mean, and what employers can expect during a visit.
Learn About InspectionsWorker Rights — Right to Refuse
Part V of the OHSA guide covering the right to refuse or stop work where a health or safety danger exists — procedures, protections, and employer obligations.
Read Part V GuideWorkplace Violence & Harassment Requirements
Ontario's legislative requirements under Part III.0.1 of the OHSA — employer obligations for workplace violence and harassment policies, programs, and investigations.
View RequirementsFile a Workplace Complaint
How to file a formal health and safety complaint with the Ontario Ministry of Labour — when to use this process, what information is needed, and what to expect.
File a ComplaintReprisal Prohibited
Part VI of the OHSA guide — the legal prohibition against employer reprisals for workers who exercise their health and safety rights, and how to seek remedy.
Read Part VI GuideJoin the Ministry Email Newsletter
Subscribe to the Ontario Ministry of Labour's email newsletter for updates on occupational health and safety legislation, enforcement, and workplace safety news.
Subscribe NowGuide for Safety Committees & Worker Reps
Ontario's official guide for joint health and safety committees and worker health and safety representatives — roles, responsibilities, and how to be effective.
Read the GuideOntario's Safe Employer Program
Learn about Ontario's Supporting Safe Employers Program — how it recognizes employers with strong safety records and what it means for your workplace.
Learn About the ProgramHealth & Safety for Small Business
Ontario's dedicated health and safety guidance for small businesses — practical steps, resources, and obligations tailored to smaller workplaces.
Small Business GuideRequired Posters in the Workplace
A complete list of the posters Ontario employers are legally required to display in the workplace, with links to download each one.
View Required PostersRequired Training (Highlights)
An overview of the health and safety training Ontario law requires for workers, supervisors, and joint health and safety committee members.
View Training RequirementsWorkplace Compliance Initiatives
Ontario Ministry of Labour's targeted compliance initiatives — sector-specific enforcement campaigns and what employers need to know to stay compliant.
View Compliance InitiativesIndustrial Health & Safety Program
The Ministry of Labour's Industrial Program — how inspectors enforce the OHSA in manufacturing, warehousing, and other industrial workplaces across Ontario.
Industrial ProgramConstruction Health & Safety Program
The Ministry of Labour's Construction Program — enforcement priorities, sector-specific regulations, and resources for construction employers and workers.
Construction ProgramHealth Care Health & Safety Program
The Ministry of Labour's Health Care Program — addressing the unique hazards faced by health care workers and the obligations of health care employers.
Health Care ProgramStatus of Safety in Ontario
The Ministry of Labour's annual occupational health and safety report for Ontario (April 2022 – March 2023) — injury statistics, enforcement data, and sector trends.
Read the Report