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Find a Lawyer » Canada Legal Guides » Ontario Legal Guides » Work & Employment Rights Ontario » The Right to Strike and Lockout Rules Under the Ontario Labour Relations Act

The Right to Strike and Lockout Rules Under the Ontario Labour Relations Act

9 Jun 2026 5 min read No comments Work & Employment Rights Ontario
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In Ontario, a legal strike or lockout cannot happen overnight. Under the Labour Relations Act, parties must first undergo mandatory conciliation, receive a “No Board” report from the Ministry of Labour, and wait through a strict 17-day cooling-off period before any legal work stoppage can commence.

Collective bargaining is the absolute cornerstone of unionized workplaces in Ontario. When a trade union and an employer sit down at the negotiating table in cities like Hamilton, Windsor, or Sudbury, their ultimate goal is to peacefully reach a mutually agreeable collective agreement. However, when negotiations heavily break down over critical issues like wages, healthcare benefits, or job security, the threat of a strike or an employer lockout becomes a highly potent weapon. Both actions are designed to inflict economic pressure to force a favorable settlement.

Unlike what you see in dramatic movies, Ontario workers cannot simply walk off the job in a sudden fit of anger. The Ontario Labour Relations Act (LRA) imposes incredibly strict timelines and mandatory bureaucratic steps that must be entirely exhausted before a legal work stoppage can begin. An illegal “wildcat” strike can result in massive financial damages awarded against the union. Let us carefully review the precise, step-by-step legal roadmap required to launch a lawful strike or lockout in this province.

The Step-by-Step Strike and Lockout Process in Ontario

The provincial government actively wants to prevent strikes. Therefore, the Ministry of Labour strictly forces both the union and the employer to utilize state-funded mediation before any economic warfare is legally permitted to begin.

Step 1: Reaching an Impasse in Negotiations

The legal process truly begins when collective bargaining reaches a total impasse. The parties have actively exchanged proposals, debated contract language, and fundamentally realized they cannot reach a deal on their own. 💬 At this stage, either the union or the employer will officially file a formal Request for the Appointment of a Conciliation Officer with the Ontario Ministry of Labour.

Step 2: Mandatory Conciliation Meetings

Once requested, the Ministry will promptly assign a neutral, government-trained Conciliation Officer. This officer meets with both parties to deeply facilitate a compromise. Conciliation is a mandatory legal step; you absolutely cannot skip it. The officer has no legal power to force a binding deal, but they possess massive experience in breaking stubborn deadlocks.

Step 3: Issuance of the “No Board” Report

If the Conciliation Officer formally concludes that the parties are hopelessly deadlocked and a deal is completely impossible, they will inform the Minister of Labour. The Minister will then officially issue a written notice stating that a conciliation board will not be appointed. In Ontario labour law, this crucial document is famously known as the “No Board” report, and it officially starts the countdown to a legal strike.

Step 4: The 17-Day Cooling-Off Period

From the exact date the “No Board” report is officially mailed to the parties, the Labour Relations Act imposes a strict, mandatory 17-day cooling-off period. During these 17 days, no legal strike or lockout can occur. This highly stressful period is frequently used by both sides for intense, last-minute marathon bargaining sessions to desperately avoid a looming work stoppage.

Step 5: Conducting a Mandatory Strike Vote

Before a union can legally call its members onto the picket line, they must hold a formal, secret-ballot strike vote. Under Ontario law, a strike cannot occur unless more than 50% of the voting bargaining unit members explicitly authorize the action. Even if the 17-day cooling-off period has completely passed, walking out without a successful, democratic strike vote is strictly illegal.

Step 6: Commencing the Work Stoppage

Once the 17 days have expired and a successful strike vote is secured, the union is in a legal position to officially strike. Conversely, the employer is now in a legal position to completely lock the workers out of the facility. During this time, the previous collective agreement is entirely suspended, meaning the employer legally stops paying wages and benefits to the striking workers.

How Much Does a Strike Cost in Ontario?

A work stoppage inflicts severe financial pain on everyone involved. Here are the typical financial realities in CAD.

Financial ImpactEstimated Cost (CAD)
Lost Employee Wages100% of standard wages are completely lost for the entire duration of the strike
Union Strike PayTypically a very small stipend of $300 to $500 per week, funded purely by union dues
Corporate Revenue LossCan easily exceed hundreds of thousands of dollars per day in deeply halted production

How Long Does the Process Take?

From the moment bargaining completely breaks down, the journey to a legal strike usually takes 4 to 8 weeks. Securing a Conciliation Officer often takes a few weeks, followed by the actual mediation meetings. Once the “No Board” report is officially requested, it takes the Ministry a few days to issue it, followed immediately by the unyielding 17-day cooling-off period. Some highly complex public strikes can drag the conciliation phase out for many months.

Frequently Asked Questions (FAQ)

Can I be legally fired for participating in a lawful strike?

No. Under the Ontario Labour Relations Act, participating in a completely lawful strike is a heavily protected right. Your employer absolutely cannot terminate your employment, heavily discipline you, or permanently replace you simply for walking the picket line. However, violent or deeply criminal acts on the picket line can still result in termination.

Can employers in Ontario hire temporary “scab” workers?

While the federal government recently moved to ban replacement workers (scabs) in federally regulated sectors, the provincial rules in Ontario are different. Generally, under provincial law, Ontario employers are still legally permitted to hire temporary replacement workers or use non-union management staff to keep operations running during a lawful strike.

What exactly is “Back-to-Work” legislation?

If a massive strike threatens immense economic damage or public safety (like a massive transit shutdown in Toronto), the Ontario provincial legislature can pass an emergency emergency law forcing the strike to end. This legislation legally orders the workers back to their jobs and forces the contract dispute into binding arbitration.

Can we just agree to strike without the Ministry’s involvement?

Absolutely not. Skipping the mandatory conciliation process and the 17-day cooling-off period constitutes an illegal “wildcat” strike. The OLRB will aggressively declare the strike unlawful, order everyone back to work immediately, and the union could be sued for massive financial damages by the employer.

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