Insights

Stay informed of the latest workplace law developments locally, nationally, and globally. From the timely quick read In A Flash to the In-Depth Analysis of various Advisors, Mathews Dinsdale’s team keeps you up-to-date.

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OHS & Workers’ Compensation Advisor

Public Procurers Beware: Ontario to Enforce Equivalent Treatment of OHS Management Systems

The Working for Workers Seven Act, 2025 (“WWA7”) became law on November 27, 2025. It amended section 7.6.1 of the OHSA by adding the Equivalency Requirement – the details of which would be subject to the OHSA’s regulations.[1]  The WWA7 also empowered Ministry of Labour, Immigration, Training and Skills Development inspectors to issue Administrative Monetary … Continued

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OHS & Workers’ Compensation Advisor

Filling in (Some of) the Gaps: Ontario OHSA Administrative Monetary Penalties Regulation

In November 2025 the Ontario government empowered Occupational Health and Safety Act (“OHSA”) inspectors to issue Administrative Monetary Penalties (AMPs) for violations of the OHSA and its regulations – a significant enforcement change. However, at that time, most of the relevant details were left to a pending regulation. In our previous Advisor, we identified numerous … Continued

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OHS & Workers’ Compensation Advisor

Administrative Monetary Penalties: Yet Another Ontario OHS Inspector Enforcement Tool

On November 27, 2025, Bill 30, the Working for Workers Seven Act, 2025, received Royal Assent. In this seventh bill amending legislation applicable to workplaces, the Ontario Occupational Health and Safety Act (“OHSA”) has been amended to provide a new tool to the enforcement arsenal of Ministry of Labour, Immigration, Training and Skills Development (“MOL”) … Continued

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OHS & Workers’ Compensation Advisor

Out From Under the Microscope: City of Sudbury Was Duly Diligent in Road Grader Accident

On August 23, 2024, the Ontario Superior Court of Justice (the “SCJ”) dismissed the Crown’s appeal against the trial finding that the City of Greater Sudbury (“City”) had exercised due diligence and should be acquitted of charges under the Ontario Occupational Health and Safety Act (“OHSA”).  The decision is important and has been long- awaited by construction project owners and general contractors after the uncertainty created by the Supreme Court of Canada’s November 10, 2023, decision in this case.  That decision provided a list of potential due diligence factors applicable when an “owner” of a construction project is also an “employer” of workers, such as its own construction quality control inspectors, and held the amount of control an employer exercises over a workplace, is a factor in assessing whether all reasonable care was exercised. Overall, the SCJ decision is a positive one for “owners” and “employers” and provides some helpful takeaways and guidance which we explore below.

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OHS & Workers’ Compensation Advisor

Ontario OHSA Fine Signals Future Significant Director & Officer Prosecution Risk

The case involving a workplace explosion and Ontario Occupational Health and Safety Act (OHSA) prosecution against Eastway Tank, Pump and Meter Limited of Ottawa, Ontario and its owner and Director Neil Greene, wrapped on Friday April 5, 2024 with guilty pleas and penalties for both the company and its Director. The terrible incident, which occurred in January 2022, resulted in fatal injuries to 6 workers, and catastrophic ones to a 7th worker, one of the worst losses of life and injury in a workplace accident in Canadian history. In addition to imposing a high OHSA corporate fine, the case has sent a chilling message about future OHS prosecution risk to Canadian corporate directors and officers.

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