Workplace safety is not a “set it and forget it” exercise.
Across Canada, governments are tightening expectations around workplace health and safety. Employers who fail to properly protect workers from occupational hazards can face serious consequences.
Corporations, directors, officers, and even individuals may face significant fines and, in some cases, jail time for breaching Ontario’s Occupational Health and Safety Act or the Canada Labour Code.
For employers, this means one thing: compliance has to stay on the radar.
Ontario Launches Canada’s First Occupational Exposure Registry (OER)
Ontario has become the first jurisdiction in Canada to launch an Occupational Exposure Registry (OER).
The registry is designed to improve the diagnosis of occupational illnesses, increase access to compensation, and help reduce long-term healthcare costs.
Why does this matter for employers?
Because workers can now self-report exposure to hazardous substances in the workplace.
Information submitted through the OER portal is shared with Ontario’s Chief Prevention Officer, who is appointed by the Minister of Labour under the Occupational Health and Safety Act.
The data will help inform prevention programs aimed at reducing workplace illness and injury.
Importantly, the registry is not intended for enforcement, although information may be shared with prevention partners.
The OER follows legislative changes introduced through Ontario’s Working for Workers Act, 2023.
At the time, the Ontario Federation of Labour reported that fewer than 10% of Ontarians with occupational cancers receive compensation.
Between 2010 and 2019, occupational illnesses accounted for approximately 76% of workplace-related deaths in Ontario.
Many workers affected by these illnesses never receive compensation. The OER aims to help close that gap.
What Is the OER and How Does It Work?
The OER is a digital portal that allows workers to self-report exposure to 11 known hazardous substances, as well as other substances encountered on the job.
This matters because occupational illnesses often develop slowly. In many cases, symptoms appear years after exposure.
The registry helps by:
• Creating a long-term record of a worker’s exposure to hazardous substances throughout their career
• Allowing workers to share exposure records with medical professionals to support more accurate diagnosis
• Providing documentation that may assist with workplace accommodations or insurance claims
The system also helps the province:
• Collect data on hazardous substance exposure in Ontario workplaces
• Increase awareness of workplace exposure risks
• Support research into reducing or eliminating exposure
What This Means for Employers
The message for employers is straightforward.
Compliance is not optional.
Health and safety obligations continue to grow, and enforcement penalties are increasing. In some cases, directors and officers may face personal liability for failures to comply.
The Ontario government defines an occupational illness as:
“a condition that results from exposure to a physical, chemical or biological agent in the workplace to the extent that the worker’s health is impaired.”
Employers should make sure their policies and practices properly address these risks.
Looking Ahead: New Federal Regulations in 2027
Federally regulated employers should also start preparing now for upcoming changes.
Amendments to the Canada Labour Code have already been registered and are scheduled to take effect in January 2027.
These amendments aim to close regulatory gaps and align hazardous substances standards across jurisdictions.
The new requirements are expected to address:
Workplace exposure to
• nanomaterials
• thermal stress
• non-solar ultraviolet radiation
• radon
As well as:
• enhanced record-keeping obligations
• air sampling requirements
• approved methodologies where no exposure limits currently exist
Why This Matters Now
Forward-thinking employers will see this as an opportunity to strengthen their workplace systems.
Now is a good time to review and update:
• Health and safety policies
• Risk management plans
• Record-keeping systems
• Training programs
• Emergency response procedures
Some organizations may also need to consider broader operational or financial planning to account for potential compliance costs or penalties.
SpringLaw’s experienced employment lawyers are here to help! Contact us.









