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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In A Flash

Bill C-58 Comes Into Force – Replacement Workers Now Banned in the Federal Sector

June 20, 2025 marks the day that Bill C-58, An Act to amend the Canada Labour Code (“Code”) and the Canada Industrial Relations Board Regulations (“Bill C-58”), comes into force. The Bill, which received royal assent on June 20, 2024, introduces very significant changes to federal labour law in Canada including, most notably, a ban on the use of replacement workers during a strike or lockout.

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Employers' Advisor

Employers’ Advisor June 2025

In this issue: 1) Ontario Gets Working for Workers Seven…And B.C. Plays Catch-Up (Or Skips Ahead) 2) Truth Over Tarnish: Negative Work Reference Held Not Defamatory 3) Time to Face the Change: HRTO Introduces Mandatory Mediation and Releases Updated Practice Directions

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In A Flash

Court of Appeal Confirms Unenforceability of Termination Clauses in Dufault Appeal

On December 19th, 2024, the Court of Appeal for Ontario released its decision in Dufault v Ignace (Township), 2024 ONCA 915 where it upheld the invalidity of a termination clause that defined “cause” more broadly than the “wilful misconduct” threshold under the Employment Standards Act, 2000 (the “ESA”). In so doing, the Court of Appeal confirmed it would not be revisiting its 2020 decision in Waksdale, but refused to weigh in on the merits of other challenges which were successful at the lower Court.

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