CanadaDoes my union have a duty to represent me fairly in a grievance?
Yes, your union in Canada has a legal duty to represent you fairly in a grievance — it must act honestly, in good faith, without discrimination, and without arbitrary or capricious conduct.
What the Law Says
While no single federal or provincial statute across Canada uses the exact phrase 'duty of fair representation', this duty is implied by law in every jurisdiction and enforced through labour relations statutes and common law. It arises from the union’s exclusive bargaining authority and statutory role as the sole representative of employees.
The duty means your union must handle your grievance honestly, in good faith, without discrimination, personal hostility, or arbitrary action. It does not require the union to pursue every grievance, but it must make decisions based on reasonable judgment — not favouritism, negligence, or prejudice.
In Saskatchewan, where the Merk case arose, the duty is grounded in the Trade Union Act, which gives unions exclusive bargaining rights and imposes corresponding responsibilities. Other provinces have similar frameworks — for example, Ontario’s Labour Relations Act, 1995 and British Columbia’s Labour Relations Code both support the same principle through interpretation and tribunal rulings.
What Courts Have Said
The Supreme Court of Canada confirmed the scope and enforceability of the duty of fair representation in Merk v. Iron Workers Local 771.
The Court held that a union breaches its duty of fair representation when its conduct is arbitrary, discriminatory, or in bad faith — and that such a breach gives rise to a civil cause of action against the union. The duty applies even if the grievance is weak or unlikely to succeed, provided the union’s decision-making process was fair and reasoned.
What to Do
Document all communications with your union about your grievance (emails, meeting notes, dates).
Request, in writing, an explanation if your union refuses to advance or drops your grievance.
File a complaint with your provincial labour board (e.g., Saskatchewan Labour Relations Board) or seek legal advice about suing the union for breach of duty.
Act promptly — limitation periods vary, but many labour boards require complaints within 30–90 days of the alleged breach.
Sources
Not legal advice. This article is general information based on publicly available sources, written for educational purposes. Laws change and individual situations vary. Consult a licensed attorney in your jurisdiction before acting on anything you read here. Last reviewed: 2026-06-08.