Executive Summary: Key Legal and Evidentiary Issues

• Allocation of jurisdiction between labour arbitrators and the Superior Court over disputes arising from a collective agreement and related tort claims
• Characterization of the “essential character” of the dispute under Weber and whether picketing-related tort allegations fall within the scope of the collective agreement and s. 48(1) of the Labour Relations Act, 1995
• Determination of the labour arbitrator’s subject-matter jurisdiction versus personal jurisdiction over non-party corporate entities not bound by the collective agreement
• Proper procedural response to parallel court claims by non-parties (outright jurisdictional dismissal versus a temporary stay under r. 21.01(3)(a) and s. 106 of the Courts of Justice Act)
• Limits on a motion judge’s ability, on a jurisdiction motion, to make factual findings on disputed, central issues (e.g., whether a blockade occurred) that go to the merits
• Development of a new two-step framework for courts facing parallel non-party claims that risk undercutting labour arbitration while preserving access to a judicial forum

Background and parties

The dispute arises out of a labour relations conflict within the Tomlinson Group of Companies, an Ottawa-based group providing environmental, construction, and transportation services. R.W. Tomlinson Limited is a construction corporation engaged in road and sewer work and the supply of concrete. Its road and sewer workers are unionized and represented by Labourers’ International Union of North America, Local 527, while employees in its Ready Mix division are not unionized. “Ready Mix” is a brand name of R.W. Tomlinson, not a separate legal entity. Two other corporate entities, 2839034 Ontario Inc. and Tomlinson Environmental Services Ltd., are separately incorporated members of the same corporate group and are not parties to the collective agreement. The Tomlinson Group itself is not a separate legal entity and is not a party to the appeal. The defendant union and four named union leaders, together with a John Doe defendant, were sued by the Tomlinson entities over conduct connected to a lawful strike and related picketing.

Strike, picketing and the start of the litigation

When the collective agreement between R.W. Tomlinson and the union expired, the union commenced a lawful strike. Picketing took place at R.W. Tomlinson’s properties, at shared properties used by all the appellants, and at certain properties used exclusively by 283 Ontario and Tomlinson Environmental. The picketing disrupted access routes, customer relationships, and supply chains across the corporate group. During the strike, R.W. Tomlinson, 283 Ontario, and Tomlinson Environmental commenced an action in the Superior Court against the union and the individual union leaders, seeking injunctive relief and claiming that the strike and picketing caused commercial harm through common law torts such as alleged interference with property and access. Two days after the action began, the parties obtained a consent order in the Superior Court establishing a picketing protocol. Picketing ended the following day when a broader settlement was reached between Ottawa road-building employers and unions. A new collective agreement was negotiated and applied retroactively to the strike period. That settlement and agreement bound R.W. Tomlinson and the union, but did not bind 283 Ontario or Tomlinson Environmental. For nearly a year and a half after the settlement, the litigation lay largely dormant. As the renewed collective agreement approached renegotiation, the plaintiffs amended their claim to proceed under the simplified procedure and sought monetary damages in tort for the earlier picketing and alleged blockading activities.

The jurisdiction motion in the Superior Court

In response, the union and the individual defendants brought a motion under r. 21.01(3)(a) of the Rules of Civil Procedure to dismiss the action for lack of jurisdiction, or alternatively to strike portions of the claim under r. 21.01(1)(b). They argued that a labour arbitrator had exclusive jurisdiction over the dispute pursuant to s. 48(1) of the Labour Relations Act, 1995 and the arbitration clause in the collective agreement, which mirrored that statutory language by providing for final and binding settlement by arbitration of all differences arising from the collective agreement. The plaintiffs argued that only the Superior Court had jurisdiction. They contended that the arbitrator lacked personal jurisdiction over 283 Ontario and Tomlinson Environmental because those entities were not parties to the collective agreement, and that the dispute did not arise from the collective agreement but from alleged tortious interference with private property and the blocking of premises. The motion judge dismissed the entire action for lack of jurisdiction. He characterized the plaintiffs’ delay in prosecuting the case as concerning and viewed the amended claim as a strategic attempt to gain leverage in the impending collective bargaining negotiations. He concluded that because the case involved a labour dispute, jurisdiction lay exclusively with the Ontario Labour Relations Board and the labour arbitration system. He further found, on the record before him, that there had been no blockade and that the union lawfully picketed at R.W. Tomlinson’s head office despite the non-union status of Ready Mix employees. He did not, however, engage with the argument that the non-party corporate plaintiffs’ claims should remain in court because the arbitrator lacked personal jurisdiction over them.

Issues on appeal

The appeal to the Court of Appeal for Ontario raised two principal issues. First, the court had to decide whether a labour arbitrator had subject-matter jurisdiction over the dispute between R.W. Tomlinson and the union and its officers, assessed through the Weber “essential character” test and the scope of the collective agreement. Second, the court needed to determine whether the claims of 283 Ontario and Tomlinson Environmental, as non-parties to the collective agreement, should be dismissed outright for lack of jurisdiction or instead be the subject of a temporary stay pending arbitration of the dispute between R.W. Tomlinson and the union. Both issues were reviewed on a correctness standard because they concerned subject-matter jurisdiction and the interpretation of statutes and precedent, and because the motion judge had not interpreted the collective agreement or considered a stay.

Arbitral subject-matter jurisdiction and the collective agreement

On the first issue, the Court of Appeal agreed that R.W. Tomlinson, as a party to the collective agreement, must take its dispute with the union to labour arbitration. The court emphasized that the key test after Weber is not the legal label (such as “tort” or “labour dispute”) but the essential character of the dispute as revealed by the underlying facts and the scope of the collective agreement. Here, the renewed collective agreement applied retroactively and governed the strike period. Although it did not expressly mention picketing, Article 4.1(a), a management-rights clause, conferred broad authority on R.W. Tomlinson over the conduct of its entire business and operations. Properly construed, this clause encompassed protection against picketing-related disruption of operations, including significant interference with business by blocking access to employees, subcontractors, customers, and suppliers. The court concluded that the essential character of the dispute between R.W. Tomlinson and the union was interference with the employer’s business and operations in a context governed by the collective agreement. The subject-matter therefore fell within the exclusive jurisdiction of the labour arbitrator under s. 48(1) of the Labour Relations Act, 1995. The court rejected the plaintiffs’ attempt to avoid arbitration by recasting their allegations purely as common law torts or by tying them to the claims of the non-party corporate entities. It emphasized that arbitrators can and do apply common law principles where the essential facts arise from the collective agreement, and that adding related entities to a lawsuit does not displace arbitral jurisdiction over disputes between the contracting parties to the agreement. The court also noted that the motion judge erred by resolving a core disputed factual issue on a r. 21.01(3) motion, namely whether a blockade had occurred. A jurisdiction motion is not the proper forum to make definitive findings on disputed facts that go to the merits. That error, however, did not affect the outcome because the jurisdictional analysis turned on the nature of the dispute and the scope of the collective agreement, not on resolving the blockade allegation. Finally, the court found that requiring arbitration did not deprive R.W. Tomlinson of a remedy. The company could grieve an alleged breach of the management-rights clause, and it was for the arbitrator, not the court, to decide the full extent of arbitral jurisdiction over any overlapping tort claims. The arbitrator’s capacity to take jurisdiction over workplace torts had evolved in higher-level arbitral case law, so the Court of Appeal declined to shut that door at the preliminary stage.

Personal jurisdiction and the position of the non-party corporate plaintiffs

The second major issue concerned 283 Ontario and Tomlinson Environmental, which were not parties to the collective agreement and had not expressly agreed to arbitrate. The Court of Appeal held that the motion judge erred by dismissing their claims for lack of jurisdiction. Drawing heavily on the Supreme Court of Canada’s decision in Bisaillon v. Concordia University, the court explained that a labour arbitrator’s jurisdiction has two distinct components: subject-matter jurisdiction, governed by the Weber essential-character analysis, and personal jurisdiction, governed by whether the parties before the arbitrator are bound by the collective agreement or have voluntarily submitted to arbitration. Arbitrators lack personal jurisdiction over true non-parties, absent express consent, and any award cannot bind those non-parties. When an arbitrator lacks personal jurisdiction over some parties to a dispute, the ordinary courts retain jurisdiction as a matter of constitutional role and residual authority. A parallel line of Ontario and other appellate decisions, including Skof and London Life, reinforced that where non-parties are involved and there is no clear statutory removal of court jurisdiction, the Superior Court’s jurisdiction persists. The Court of Appeal also scrutinized the prior decision in Giorno v. Pappas, which had been understood as supporting jurisdictional dismissal of non-party claims whenever an arbitrator had subject-matter jurisdiction over the underlying dispute. The court found that Giorno’s remedial assumption had been overtaken by subsequent jurisprudence and a more precise understanding of the limits of arbitral personal jurisdiction. It emphasized that jurisdictional dismissal of non-party claims risks creating “jurisdictional dead ends” and undermining the rule of law and access to justice by leaving some litigants with no available adjudicative forum.

Statutory interpretation and the limits of mandatory arbitration

In addition to the case law, the Court of Appeal examined the text and purpose of s. 48(1) of the Labour Relations Act, 1995. The statutory language mandates final and binding arbitration of “all differences between the parties” arising from the interpretation, application, administration, or alleged violation of the collective agreement. The phrase “between the parties” was interpreted as limiting compulsory arbitration to disputes between the employer and the union, and the employees to whom the collective agreement applies, not to third-party entities. Related provisions, such as s. 56, which defines who is bound by a collective agreement, and s. 48(18), which specifies who is bound by an arbitral award, confirmed that the legislature did not intend to require non-party arbitration. The court held that clear and express statutory language would be needed to remove the Superior Court’s jurisdiction over non-party claims, and no such language exists in the Labour Relations Act, 1995. Rather than extending arbitral jurisdiction beyond these statutory limits, courts are to respect the legislature’s policy choice by requiring arbitration only between the parties, and by using other tools—such as stays—to protect the efficiency and integrity of the labour arbitration process.

Temporary stays as the preferred tool for parallel non-party claims

Having clarified that the Superior Court maintained jurisdiction over the claims of 283 Ontario and Tomlinson Environmental, the Court of Appeal turned to the question of how to manage those claims in light of their overlap with the dispute to be arbitrated between R.W. Tomlinson and the union. The court held that, instead of dismissing the non-party claims for lack of jurisdiction, a temporary stay should generally be considered under s. 106 of the Courts of Justice Act where parallel proceedings risk undercutting arbitration. A temporary stay of non-party claims can prevent duplicative proceedings, inconsistent findings, and strategic attempts to circumvent arbitration by involving related entities, while still preserving access to a judicial forum once the arbitral process has concluded. The court emphasized that a temporary stay is a discretionary, case-specific remedy. It is generally favoured when there is significant factual and legal overlap between the court claim and the arbitral dispute, and when a stay would promote efficiency and respect for the specialized tribunal without causing undue prejudice or delay to the parties seeking to litigate in court. A stay is not automatic; the moving party bears the burden of showing that the advantages of a stay outweigh any prejudice to the responding party, taking into account factors such as vulnerability, urgency, and the risk of evidentiary prejudice.

A new two-step framework for courts facing parallel non-party claims

To guide future cases, the Court of Appeal distilled its analysis into a structured, two-step framework for motions brought under r. 21.01(3)(a) in the context of parallel claims involving non-parties to a collective agreement. First, the court must determine whether the labour arbitrator has both subject-matter and personal jurisdiction. If both are present, the court must dismiss the proceeding for want of jurisdiction. If the arbitrator lacks either subject-matter or personal jurisdiction, the Superior Court retains jurisdiction and proceeds to the second step. Second, the court must decide whether to temporarily stay the litigation pending labour arbitration between the parties to the collective agreement. In assessing whether a stay is appropriate, courts should evaluate, on the one hand, the efficiency and respect-for-arbitration factors, such as avoiding multiplicity of proceedings, minimizing expense, and deferring where appropriate to the arbitrator’s expertise, and, on the other hand, any prejudice that a stay would cause to the party wishing to continue in court. Significant prejudice, such as harmful delay or vulnerability of the party seeking to litigate, may justify allowing the court action to proceed despite overlap with arbitration.

Application of the framework and the final disposition

Applying this framework to the facts, the Court of Appeal concluded that the Superior Court had jurisdiction over the claims of 283 Ontario and Tomlinson Environmental because the arbitrator lacked personal jurisdiction over them as non-parties to the collective agreement who had not expressly agreed to arbitrate. However, it also found that those claims substantially overlapped with the arbitral dispute between R.W. Tomlinson and the union. All claims arose out of the same strike, picketing, and alleged interference with business operations across closely integrated corporate entities. Permitting 283 Ontario and Tomlinson Environmental to proceed in court while the arbitral process unfolded risked a multiplicity of proceedings, inconsistent findings, and unnecessary cost and delay, and would have given effect to what the motion judge had characterized as a strategic attempt to use litigation as leverage in upcoming collective bargaining. The court therefore ordered that the claims of 283 Ontario and Tomlinson Environmental be temporarily stayed pending the resolution of R.W. Tomlinson’s grievance before a labour arbitrator, and any judicial review of the resulting award, subject to specific conditions about who brought any judicial review. The court set aside the order that had dismissed those non-party claims for lack of jurisdiction and substituted an order declaring that the Superior Court had jurisdiction but staying the proceedings. At the same time, the Court of Appeal dismissed the appeal as it related to R.W. Tomlinson and Ready Mix, affirming that their claims must proceed, if at all, through labour arbitration and not in the Superior Court. On costs, the court did not fix any monetary amount but instead directed the parties to exchange written costs submissions and bills of costs if they could not agree, leaving the actual quantum to be determined later. Accordingly, there is no determinable total monetary award, damages figure, or final costs amount set out in this decision. The outcome is therefore mixed: the union and its officers successfully maintained that the dispute with R.W. Tomlinson belongs in arbitration, while the non-party corporate plaintiffs achieved a partial success by having their claims preserved under a temporary stay rather than being permanently dismissed, with no specific monetary recovery or total amount ordered in favour of any party identified in the judgment.