Class Actions and Alternative Dispute Resolution in Canada: Collective Litigation, Mediation, and Arbitration

Class Actions and Alternative Dispute Resolution in Canada: Collective Litigation, Mediation, and Arbitration

Introduction

The Canadian civil justice system recognises that some legal disputes cannot be understood adequately as isolated conflicts between individual claimants and defendants. A single commercial practice, defective product, misleading representation, environmental incident, privacy breach, or institutional decision may affect hundreds or thousands of people. Requiring every affected person to commence a separate lawsuit can produce unnecessary expense, inconsistent judgments, and practical barriers to justice. In such circumstances, collective litigation offers a means of resolving shared legal questions through a representative proceeding.

Class actions, also known as class proceedings or collective actions, are an important part of Canadian civil procedure. They enable one or more representative plaintiffs to litigate claims on behalf of a defined group of persons whose claims raise common issues. Although individual class members may have different losses or circumstances, the proceeding can determine questions that are sufficiently shared to justify collective treatment.

At the same time, litigation is not the only method through which civil disputes may be resolved. Canadian law increasingly recognises alternative dispute resolution (ADR), particularly mediation and arbitration, as important components of the administration of justice. Mediation allows parties to negotiate with the assistance of a neutral facilitator, while arbitration transfers the decision-making function from a court to a private adjudicator chosen or appointed under an agreement or statutory framework.

These mechanisms serve different purposes. A class action is principally a procedural method for bringing collective claims before a court. Mediation is a consensual or procedurally required negotiation process in which the mediator does not impose a decision. Arbitration is an adjudicative process in which an arbitrator determines the dispute and generally issues a binding award.

Their relationship is nevertheless significant. Class proceedings may settle through mediation, individual civil claims may be referred to arbitration, and arbitration clauses may raise questions about whether a court action can proceed. Canadian courts must therefore balance contractual autonomy, procedural efficiency, access to justice, fairness to absent class members, and the public interest in the administration of justice.

This article examines the legal framework governing class actions and ADR in Canada, the principal certification requirements, the rights of class members, the operation of mediation and arbitration, and the limits of private dispute resolution.

1. The Legal Foundations of Collective Litigation in Canada

1.1 Why class actions exist

Ordinary civil litigation is generally organised around individual parties. A claimant brings a claim against a defendant, presents evidence concerning the claimant’s own circumstances, and seeks an appropriate remedy. This structure works well when the dispute concerns a relatively small number of identifiable parties.

It becomes less effective when the same conduct affects a large group.

Consider a financial institution that charges an allegedly unlawful fee to hundreds of thousands of customers. Each customer may have lost only a small amount. Although the total financial impact may be substantial, the expense of commencing an individual lawsuit could exceed the amount recoverable by any one customer. Without a collective procedure, the defendant’s conduct might remain practically unchallenged.

A class action addresses this problem by allowing a representative plaintiff to pursue common claims on behalf of a defined class. It can reduce duplicated proceedings, promote consistent outcomes, and make claims economically viable that would otherwise be too small to litigate individually.

Collective litigation also has an institutional function. It can encourage compliance with consumer protection, competition, privacy, securities, environmental, employment, and other legal obligations. Nevertheless, the purpose of a class action is not simply to punish defendants or regulate industries. It remains a civil proceeding intended to determine legal claims and provide appropriate remedies.

1.2 Constitutional and institutional framework

Civil procedure in Canada is principally administered by the provinces and territories. Section 92(14) of the Constitution Act, 1867 gives provincial legislatures authority over the administration of justice, including the constitution, maintenance, and organisation of provincial courts and civil procedure in those courts.

Consequently, class proceedings are governed primarily by provincial legislation and procedural rules. The Federal Court also has a statutory class proceeding mechanism under Part 5.1 of the Federal Courts Rules.

There is no single national class action statute that governs every proceeding throughout Canada. The applicable regime depends on the court in which the action is brought, the nature of the claims, and the relevant statutory jurisdiction.

The principal provincial statutes include:

• Alberta’s Class Proceedings Act;
• British Columbia’s Class Proceedings Act;
• Manitoba’s Class Proceedings Act;
• New Brunswick’s Class Proceedings Act;
• Newfoundland and Labrador’s Class Actions Act;
• Nova Scotia’s Class Proceedings Act;
• Ontario’s Class Proceedings Act, 1992;
• Prince Edward Island’s Class Proceedings Act; and
• Saskatchewan’s The Class Actions Act.

Quebec regulates collective actions through Title III of Book VI of its Code of Civil Procedure, particularly articles 571–604. The terminology and procedural structure differ from those used in common-law provinces.

The Federal Court’s framework appears in Part 5.1 of the Federal Courts Rules. Its application is connected to the Federal Court’s statutory jurisdiction; it does not create a general federal court jurisdiction over every collective civil dispute.

The territories also have their own court structures and procedural rules. Their position should not be assumed to be identical to that of the provinces with comprehensive class proceedings statutes.

1.3 Common law and civil law approaches

Canada’s bijural structure is particularly relevant to collective litigation.

In common-law provinces, class proceedings legislation generally establishes a certification procedure through which the court determines whether a proposed action can proceed collectively. The statutory requirements differ in wording and detail, but commonly address the existence of an identifiable class, common issues, the suitability of collective treatment, and the adequacy of the representative plaintiff.

Quebec follows a distinct civil-law model. A proposed class action must first receive judicial authorisation under the Code of Civil Procedure. Article 571 defines the class action as a procedural mechanism through which a member of a group may sue on behalf of the members without obtaining an individual mandate from each of them.

The distinction is more than terminological. The procedural sequence, requirements, and treatment of class members reflect the structure of the relevant provincial legal system.

2. The Scope and Subject Matter of Class Actions

Class proceedings are not restricted to one particular branch of civil law. They may concern disputes arising under federal or provincial legislation, common-law causes of action, and, in Quebec, applicable civil-law obligations.

Common subject areas include:

Consumer protection. Claims may arise from misleading advertising, unfair contractual terms, unlawful fees, defective goods, or allegedly deceptive commercial practices.

Product liability. A class action may concern a defective product that has caused similar injuries or financial losses to a large group of consumers.

Securities and financial services. Investors may bring collective proceedings concerning alleged misrepresentations, failures to disclose material information, or other conduct regulated by securities legislation.

Competition law. Collective claims may arise from alleged price-fixing, market allocation, or other anti-competitive conduct.

Employment. Workers may pursue claims involving common wage practices, unpaid overtime, employment classification, or alleged breaches of statutory employment protections.

Privacy and data protection. A common incident, such as a data breach or allegedly unlawful collection of personal information, may give rise to claims by numerous individuals.

Environmental harm. A group may seek compensation or other relief arising from contamination, pollution, or other conduct affecting a community.

Public and institutional liability. Claims may concern government bodies, public institutions, or organisations where common legal questions arise from shared conduct.

The existence of a common defendant or a similar complaint does not automatically justify a class action. The proposed claims must satisfy the statutory requirements for collective treatment. In particular, the court must be able to identify issues that can fairly and efficiently be resolved on a common basis.

3. Certification: The Gateway to a Class Proceeding

3.1 The meaning of certification

In most Canadian common-law class proceedings regimes, certification is the judicial process through which a proposed class action is approved to continue as a class proceeding.

Before certification, the matter is ordinarily described as a proposed class action. The plaintiff has commenced proceedings on a representative basis, but the court has not yet authorised the case to proceed collectively.

Certification is a procedural decision. It does not establish that the defendant acted unlawfully, that the proposed claims are factually true, or that every class member has suffered compensable loss.

The court considers whether the action satisfies the statutory requirements for collective treatment. The substantive merits are generally determined at a later stage, through settlement or adjudication.

This distinction is fundamental. Certification determines whether the proceeding is suitable for collective litigation, not whether the representative plaintiff has already proved the case.

3.2 The principal certification criteria

Although the precise statutory language varies, common-law provincial legislation generally requires consideration of several central elements.

First, the pleadings must disclose a cause of action.

The proposed plaintiff must identify a legally recognisable claim. The court examines whether the pleaded facts, assumed to be true for this limited purpose, could support a cause of action.

The certification judge does not normally conduct a full trial of the claim. The question is whether the claim is legally viable on the pleadings, rather than whether the plaintiff has already established liability.

Second, there must be an identifiable class.

The proposed class must be defined sufficiently clearly to determine who falls within it. A class definition that is vague, subjective, or dependent entirely on the outcome of the litigation may create serious difficulties.

For example, a proposed class might consist of all customers who purchased a specified product from a particular supplier during a defined period and were charged a particular fee.

A workable definition should allow individuals to determine whether they are included and permit the court to identify the persons who may be affected by the judgment or settlement.

Third, the claims must raise common issues.

Common issues are questions of law or fact that can be determined collectively. They need not be identical for every class member, but they must be sufficiently shared to justify common adjudication.

A common question might be whether a company used a particular contractual term, whether a product contained a common defect, or whether a specific practice violated a statutory obligation.

The existence of individual differences does not necessarily prevent certification. A class action may resolve common liability questions while leaving individual questions of causation, loss, or entitlement to be determined separately.

Fourth, a class proceeding must be the preferable procedure.

The court considers whether collective litigation is a suitable and effective means of resolving the common issues.

Relevant considerations may include:

• Whether the class proceeding advances access to justice;
• Whether it promotes judicial economy;
• Whether it allows common issues to be determined consistently;
• Whether individual proceedings would be impractical or disproportionately expensive;
• Whether another procedure could resolve the claims more effectively; and
• Whether the proposed collective process can be managed fairly.

This inquiry is not simply a comparison of litigation costs. It requires an assessment of the practical and legal consequences of resolving the claims collectively.

Fifth, there must be an adequate representative plaintiff.

The representative plaintiff must be capable of fairly and adequately representing the class. The representative should have a claim connected to the common issues and should not have an interest that conflicts with the interests of the class.

The representative plaintiff also generally needs a workable litigation plan explaining how the case will be advanced and how class members will be informed.

The representative plaintiff does not personally control every class member’s claim. The role is representative, and the court retains supervisory authority to protect the interests of the wider group.

3.3 The Supreme Court of Canada and certification principles

Several Supreme Court of Canada decisions have shaped the development of class proceedings.

In Western Canadian Shopping Centres Inc. v. Dutton, 2001 SCC 46, the Supreme Court considered the objectives of class proceedings and the importance of a functional approach to collective litigation. The Court recognised that class actions can improve access to justice, promote judicial economy, and encourage behaviour modification through the enforcement of legal obligations.

In Hollick v. Toronto (City), 2001 SCC 68, the Court addressed the certification requirements in the context of claims concerning alleged environmental nuisance. The judgment emphasised that the plaintiff must provide a sufficient evidentiary basis to demonstrate that the statutory requirements are met.

In Pro-Sys Consultants Ltd. v. Microsoft Corporation, 2013 SCC 57, the Supreme Court considered certification in a proposed competition class action. The case is important for its treatment of common issues, expert evidence, and the evidentiary foundation required at certification.

In AIC Limited v. Fischer, 2013 SCC 69, the Court examined the preferable-procedure requirement and the relationship between class proceedings and alternative regulatory or administrative remedies. The existence of another available process does not automatically make a class action unnecessary. The court must consider whether that alternative is realistically capable of resolving the claims and providing meaningful access to justice.

These decisions demonstrate that certification is intended to be a meaningful judicial screening process. It is neither a purely administrative formality nor an occasion for a full trial of the underlying dispute.

3.4 Different statutory approaches

Certification criteria are not identical across Canada.

Ontario’s Class Proceedings Act, 1992, section 5, identifies five principal requirements. Following legislative amendments, Ontario’s preferable-procedure test includes additional considerations for proposed plaintiff class proceedings. These include whether the class proceeding is superior to reasonably available alternatives and whether common questions predominate over individual questions.

British Columbia’s Class Proceedings Act, section 4, also establishes certification criteria. Its legislation expressly provides that common issues need not predominate over individual issues. The court must consider whether the class proceeding is preferable for the fair and efficient resolution of the common issues, taking into account the circumstances of the case.

These differences are important. It would be incorrect to assume that a certification decision in one province necessarily establishes the outcome under another province’s legislation.

4. Quebec’s Class Action Authorisation Procedure

Quebec’s class action system is based on the authorisation procedure in articles 571 and following of the Code of Civil Procedure.

Article 571 describes the class action as a procedural mechanism through which a member of a class may sue on behalf of the other members without obtaining a mandate from each person.

The proposed representative must apply for authorisation before the proceeding can advance as a class action. Article 575 establishes the principal authorisation criteria.

The court must be satisfied that:

1. The claims of the members raise identical, similar, or related questions of law or fact;
2. The facts alleged appear to justify the conclusions sought;
3. The composition of the class makes it difficult or impractical to apply the ordinary rules governing mandates or joinder of parties; and
4. The proposed representative is in a position to represent the members adequately.

The authorisation stage is not a full determination of liability. It examines whether the proposed proceeding is sufficiently grounded and appropriate to be conducted collectively.

Once authorised, the judgment defines the class and the principal issues to be determined. The court may also appoint a special case management judge under article 572.

Quebec’s system has important consequences for class membership. Unlike the general opt-out structure commonly used in common-law provincial proceedings, Quebec generally includes persons within the authorised class unless they take the steps required to exclude themselves where the law permits.

The Fonds d’aide aux actions collectives also plays a role in facilitating access to collective proceedings by providing financial assistance in appropriate cases.

5. Representative Plaintiffs, Class Counsel, and Class Members

5.1 The representative plaintiff

A representative plaintiff is the person or entity appointed to conduct the proceeding on behalf of the class.

The representative plaintiff must have a genuine connection to the claims and be capable of protecting the interests of the group. The court may consider the representative’s understanding of the case, willingness to participate, relationship with class counsel, and ability to comply with the responsibilities of the role.

A representative plaintiff is not necessarily required to have suffered precisely the same loss as every other class member. The essential question is whether the representative can fairly advance the common claims.

Where significant differences exist between groups of class members, the court may require subclasses or separate representation.

5.2 Class counsel

Class counsel conducts the litigation and represents the interests of the class. The lawyer’s responsibilities extend beyond the immediate interests of the representative plaintiff.

This creates a particular professional responsibility. A settlement that benefits the representative plaintiff disproportionately, for example, may not be acceptable if it disadvantages other members of the class.

Class counsel must also manage conflicts of interest, communicate appropriately with class members, comply with professional obligations, and ensure that proposed settlement arrangements are presented transparently to the court.

5.3 Class members and the right to participate

Class members are not necessarily active participants in every stage of the litigation. The representative plaintiff and class counsel ordinarily conduct the proceeding, while the court manages the collective process.

Nevertheless, class members have important rights. Depending on the applicable legislation and court orders, these may include:

• Receiving notice of certification;
• Opting out of the proceeding where an opt-out mechanism applies;
• Participating in specified stages of the litigation;
• Objecting to a proposed settlement;
• Making individual claims for compensation where required; and
• Receiving a share of any approved recovery to which they are entitled.

The procedural rights of class members are particularly important because the litigation may bind persons who did not personally instruct the representative plaintiff or participate actively in the case.

6. Opt-In and Opt-Out Systems

One of the most important distinctions in collective litigation concerns the way individuals become members of a class.

6.1 Opt-out proceedings

In many common-law provincial class actions, the general model is opt-out.

Once the court certifies the proceeding and the class is properly defined, persons who fall within the class are generally included unless they take the prescribed steps to opt out.

The advantage is that the proceeding can represent a large group without requiring every individual to register or provide an express mandate at the beginning.

The system is particularly significant in claims involving relatively small individual losses. Requiring each person to take positive action before becoming a class member could undermine the purpose of collective litigation.

However, opt-out proceedings also raise important questions of notice and procedural fairness. Individuals must have a reasonable opportunity to understand that they are included and what consequences may follow.

6.2 Opt-in and participation requirements

Some collective procedures, particular statutory schemes, or specific stages of a class action may require positive participation. For example, a class member may have to submit a claim form and supporting documents to receive compensation from a settlement fund.

It is therefore necessary to distinguish between membership in the class and entitlement to a particular payment.

A person may be included in a class proceeding without having to register at the outset, but later be required to demonstrate eligibility for a distribution.

6.3 Quebec’s approach

Quebec generally follows an automatic inclusion model for persons within the authorised class, subject to the applicable exclusion procedure.

The precise operation of opt-out rights, notice, and class membership depends on the court’s authorisation judgment and the statutory framework.

7. Notice, Administration, and Management of Class Proceedings

A class action may involve a large number of people, complex evidence, substantial financial claims, and multiple procedural stages. Effective case management is therefore essential.

7.1 Notice to class members

Notice informs potential class members about the proceeding, the definition of the class, the nature of the claims, and the consequences of remaining in or leaving the class.

Notice may be given through direct communication, publication, websites, electronic communications, or other methods approved by the court.

The court must consider what constitutes an appropriate and practicable form of notice in the circumstances.

Notice is not simply a procedural formality. It helps protect the rights of persons who may be bound by a judgment or settlement without participating personally in the litigation.

7.2 Common issues and individual issues

A class proceeding generally separates questions that can be determined collectively from those that require individual assessment.

Common issues may include:

• Whether the defendant engaged in a particular practice;
• Whether a contractual term was unlawful;
• Whether a product was defective;
• Whether a statutory obligation was breached; or
• Whether a particular legal duty existed.

Individual issues may include:

• Whether a specific person purchased the product;
• Whether that person suffered a particular injury;
• The amount of individual financial loss;
• Whether the person relied on a representation; or
• Whether individual defences apply.

A court may determine common issues first and then establish procedures for resolving individual claims. This can involve individual hearings, administrative claims processes, statistical evidence, or other methods authorised by the relevant legislation.

7.3 Settlement administration

Where a class action settles, the settlement may require a structured distribution process.

A claims administrator may receive applications, verify supporting documents, calculate entitlements, and distribute compensation. The court may approve the proposed administration arrangements and require reporting on the distribution process.

Not every class member will necessarily receive an identical payment. The settlement may provide different amounts or methods of compensation according to the nature of the loss, available evidence, or other relevant criteria.

8. Settlement and Judicial Approval of Class Actions

8.1 Why judicial approval is required

Class actions may be settled before trial, but a representative plaintiff and defendant cannot ordinarily conclude a binding settlement on behalf of the entire class without the required court approval.

This safeguard exists because the settlement affects persons who may not have participated directly in negotiations.

The court must assess whether the proposed agreement is fair and reasonable and serves the interests of the class.

Ontario’s Class Proceedings Act, 1992, section 27.1, expressly requires court approval of settlements in class proceedings. A settlement is not binding under that provision unless approved. The court must determine that it is fair, reasonable, and in the best interests of class members.

Comparable protections exist under other provincial regimes.

8.2 Factors considered by the court

The court’s assessment may include:

• The strength of the claims and available defences;
• The likely outcome of continued litigation;
• The risks and costs of trial and appeal;
• The amount and structure of the proposed settlement;
• The treatment of different groups within the class;
• The proposed distribution process;
• The legal fees and disbursements payable to class counsel;
• The existence and terms of third-party funding arrangements; and
• Any objections raised by class members.

The court is not required to approve an agreement merely because the representative plaintiff and defendant support it.

The purpose is to protect the interests of absent class members and ensure that the settlement represents a defensible resolution of the claims.

8.3 Settlement and cy-près distribution

Sometimes a settlement fund cannot be distributed efficiently to every eligible class member. Individual claims may be too small, records may be incomplete, or the cost of identifying recipients may be disproportionate.

Some class action regimes permit cy-près distribution in appropriate circumstances. This involves directing undistributed funds towards an alternative use that benefits the class or advances an objective sufficiently connected to the claims.

Cy-près distribution is not an automatic entitlement of the parties. It is subject to the applicable statutory framework and judicial supervision.

9. Costs, Funding, and Economic Access to Class Actions

Class proceedings can be expensive. They may require extensive document disclosure, expert evidence, complex legal analysis, notice campaigns, and prolonged litigation.

The funding structure is therefore an important part of the collective litigation system.

9.1 Contingency fee arrangements

Class counsel may agree to receive payment only if the proceeding succeeds or produces an approved settlement. Such arrangements can make collective litigation financially possible for claimants who could not otherwise afford the costs of pursuing complex litigation.

However, contingency arrangements are subject to applicable professional regulation and judicial supervision where required.

A court may review the fees payable from a settlement or judgment to ensure that the proposed amount is fair and reasonable.

9.2 Third-party litigation funding

A third-party funder may provide financial support for litigation in exchange for an agreed return if the proceeding succeeds.

Funding may cover legal fees, disbursements, expert costs, or other expenses. It can reduce the financial risk borne by representative plaintiffs and class counsel.

However, third-party funding creates potential conflicts. The funder’s commercial interests may not correspond fully with the interests of class members. The court may therefore require disclosure and approval of funding arrangements under the relevant statutory framework.

Ontario’s Class Proceedings Act, 1992, includes provisions addressing third-party funding agreements.

9.3 Costs and the risk of litigation

Canadian provinces do not apply identical costs rules to class actions. Some regimes modify ordinary costs principles, while others retain a broader judicial discretion.

The possible costs consequences can influence whether a proposed proceeding is financially viable. They may also affect the terms of funding agreements and the willingness of counsel to undertake complex cases.

There is no single national rule governing costs in every Canadian class action. The applicable provincial statute and procedural rules must be examined.

10. Multi-Jurisdictional and National Class Actions

A single course of conduct may affect people in several provinces or territories. A company may operate nationally, a product may be sold across Canada, or a data breach may involve customers throughout the country.

These circumstances can give rise to multi-jurisdictional class proceedings.

10.1 Jurisdiction and national classes

A provincial superior court may, where the relevant legal and jurisdictional requirements are satisfied, certify a class that includes persons residing outside the province.

However, the existence of a national class does not eliminate questions about territorial jurisdiction, the applicable substantive law, or the recognition of judgments.

The court must consider whether it has a sufficient jurisdictional connection to the dispute and whether the proposed class is properly defined.

10.2 Competing class actions

Similar class actions may be commenced in different provinces concerning the same alleged conduct.

This can create problems of duplication, inconsistent settlement negotiations, competing representative plaintiffs, and uncertainty about which proceeding should take priority.

Canadian courts may use case management, stays, carriage motions, and other procedural tools to coordinate proceedings and protect the interests of class members.

Ontario’s legislation includes provisions concerning carriage motions and multi-jurisdictional proceedings. Other provinces have their own procedural approaches.

10.3 National coordination

The Canadian Bar Association and other legal institutions have contributed to the development of coordination practices for multi-jurisdictional class actions.

Coordination may involve communication between courts, notice to other representative plaintiffs, agreements between counsel, and judicial consideration of overlapping proceedings.

The objective is not necessarily to force every claim into one court. Rather, it is to reduce duplication and ensure that the interests of class members are protected across jurisdictional boundaries.

11. Alternative Dispute Resolution in the Canadian Legal System

11.1 Meaning and objectives of ADR

Alternative dispute resolution refers to processes through which disputes may be resolved without a full court trial.

The principal forms include:

• Negotiation;
• Mediation;
• Arbitration; and
• Hybrid processes combining elements of more than one method.

ADR can reduce delay, limit legal expenses, preserve business or personal relationships, and allow parties to design solutions that a court might not be able to order.

However, ADR is not necessarily informal, inexpensive, or appropriate for every dispute. A complex arbitration may be as costly as litigation, while a mediation may fail if the parties lack the authority or willingness to negotiate.

The appropriate process depends on the dispute, the parties’ relationship, the legal rights involved, and the practical objectives of the participants.

11.2 Negotiation

Negotiation is the most direct form of dispute resolution. The parties communicate with each other, or through their legal representatives, in an attempt to reach an agreement.

It does not require a neutral third party.

Negotiation may take place before litigation begins, during court proceedings, or after judgment where enforcement or settlement issues remain unresolved.

A negotiated agreement can address matters beyond the remedies a court might award. For example, a commercial settlement may include revised delivery terms, a payment schedule, changes to a business relationship, or future contractual protections.

Negotiation is generally voluntary, although procedural rules and professional obligations may encourage parties to explore settlement.

12. Mediation: Facilitated Negotiation

12.1 The role of the mediator

Mediation is a structured process in which an independent and impartial person assists parties in attempting to resolve their dispute.

Unlike a judge or arbitrator, the mediator does not determine liability or impose a binding decision.

The mediator facilitates communication, identifies areas of disagreement, assists the parties in evaluating possible outcomes, and may help them develop settlement proposals.

The parties retain control over whether to settle and on what terms.

Mediation may be conducted in person, by telephone, or through electronic communication. Depending on the dispute, the mediator may hold joint meetings, separate confidential discussions, or a combination of both.

12.2 Voluntary and mandatory mediation

Mediation is frequently voluntary. Parties may agree to mediate through a contractual clause, a settlement arrangement, or a decision made after a dispute has arisen.

However, certain court procedures require parties to attend mediation.

Ontario provides a prominent example. Under Rule 24.1 of its Rules of Civil Procedure, mandatory mediation applies to specified civil actions in Toronto, Ottawa, and Windsor, subject to statutory and procedural exceptions.

The purpose is to encourage early and fair resolution, reduce unnecessary litigation costs, and narrow the issues that remain in dispute.

Importantly, the existence of mandatory mediation does not mean that parties must reach an agreement. They must participate in the prescribed process, but the mediator cannot compel them to settle.

Ontario’s mandatory mediation programme generally does not apply to actions certified as class proceedings under the Class Proceedings Act, 1992. This is an important distinction between ordinary civil litigation and collective proceedings.

12.3 Confidentiality

Confidentiality is one of mediation’s central characteristics.

Parties are generally encouraged to discuss settlement positions openly without fearing that every proposal or concession will later be used against them in court.

The precise scope of confidentiality depends on the applicable statute, procedural rules, mediation agreement, and relevant legal privileges.

Confidentiality should not be treated as absolute. Exceptions may arise under legislation or other legal obligations, and parties should understand the applicable rules before disclosing sensitive information.

12.4 The mediation process

A typical mediation involves several stages.

Preparation. The parties identify the issues, exchange relevant information, and prepare summaries of their positions. They should also consider the authority required to approve a settlement.

Opening stage. The mediator explains the process, establishes expectations, and may invite each party to describe the dispute.

Exploration. The mediator assists the parties in identifying the legal and practical issues, the interests underlying their positions, and possible areas of agreement.

Private discussions. The mediator may meet separately with the parties to explore settlement options confidentially.

Negotiation. The parties consider possible terms, financial arrangements, non-monetary measures, and methods of resolving remaining disagreements.

Conclusion. If agreement is reached, the parties should record its terms clearly and determine whether additional court approval or formal steps are required.

If mediation fails, the dispute may proceed through the ordinary litigation process or another agreed procedure.

12.5 Settlement agreements

A successful mediation normally results in a written settlement agreement.

The agreement should identify the parties, the obligations undertaken, payment terms where applicable, deadlines, releases, confidentiality provisions, and consequences of non-compliance.

A signed settlement agreement may create legally enforceable obligations. However, the precise method of enforcement depends on the applicable law and the form of the agreement.

Where the dispute is already before a court, the parties may seek to have the settlement reflected in a consent order or other appropriate judicial disposition.

13. Arbitration: Private Adjudication of Disputes

13.1 Nature of arbitration

Arbitration differs from mediation because the arbitrator has authority to decide the dispute.

The parties submit their claims and evidence to an independent adjudicator, who considers the applicable law and issues an award.

Arbitration is commonly used in commercial, construction, financial, international trade, and contractual disputes. It may also arise in labour relations and other areas governed by specialised statutory frameworks.

The parties may agree to arbitration before a dispute arises through a contractual arbitration clause, or after a dispute has developed.

In some fields, legislation may provide for arbitration or impose a particular dispute-resolution procedure.

13.2 Provincial and federal arbitration legislation

Arbitration in Canada is governed by a combination of provincial, territorial, and federal legislation.

Ontario’s principal domestic arbitration statute is the Arbitration Act, 1991. It establishes rules concerning arbitration agreements, the jurisdiction of arbitral tribunals, procedure, awards, and court supervision.

Other provinces have their own arbitration legislation. Quebec’s arbitration framework is contained principally in the Code of Civil Procedure, which recognises arbitration as a private dispute-resolution process.

International commercial arbitration is also regulated through specific legislation. Provincial statutes generally implement or reflect the principles of the UNCITRAL Model Law in the international commercial context.

At the federal level, the Commercial Arbitration Act governs specified matters involving federal jurisdiction and international commercial arbitration in circumstances covered by the statute.

It is therefore important to distinguish domestic arbitration, international commercial arbitration, labour arbitration, family arbitration, and arbitration under specialised statutory regimes. They do not necessarily follow identical rules.

13.3 Arbitration agreements

An arbitration agreement is the legal basis on which parties submit disputes to arbitration.

It may be contained in a commercial contract, shareholder agreement, service agreement, construction contract, or another legally enforceable arrangement.

The agreement may identify:

• The disputes covered;
• The seat or legal place of arbitration;
• The applicable procedural rules;
• The number and method of appointment of arbitrators;
• The language of the proceedings;
• The governing substantive law; and
• The method for allocating arbitration costs.

The wording of the agreement is important. A poorly drafted clause may create disputes over the scope of arbitration, the appropriate forum, or the method of appointing the arbitrator.

13.4 The principle of party autonomy

Arbitration is based substantially on party autonomy. The parties generally have the ability to select the arbitrator, agree on procedural rules, and determine certain aspects of the process.

However, party autonomy is not unlimited.

An arbitration agreement cannot necessarily displace mandatory statutory protections, constitutional requirements, public policy, or fundamental principles of fairness.

Courts retain a supervisory role, particularly where the validity of an arbitration agreement, the jurisdiction of an arbitral tribunal, or the enforceability of an award is challenged.

14. The Relationship Between Arbitration Agreements and Court Proceedings

14.1 Staying court proceedings in favour of arbitration

Where parties have entered into a valid arbitration agreement, one party may ask the court to stay litigation brought in breach of that agreement.

The underlying principle is that courts should generally respect the parties’ decision to arbitrate disputes within the scope of a valid arbitration clause.

However, the court must first consider whether the arbitration agreement is legally effective and whether the dispute falls within its scope.

A court may refuse to stay proceedings where the agreement is invalid, inoperative, incapable of being performed, or where a statutory exception applies.

14.2 The competence-competence principle

An important principle in arbitration law is that an arbitral tribunal generally has the authority to determine questions concerning its own jurisdiction.

This is commonly described as the competence-competence principle.

It does not mean that an arbitrator has the final and exclusive authority to decide every jurisdictional dispute. Courts retain a role in determining whether the arbitration agreement is valid and whether a proceeding should be stayed.

Canadian courts have developed a framework for deciding when a jurisdictional challenge should be referred to the arbitrator and when the court should decide the issue itself.

14.3 Dell Computer Corp. v. Union des consommateurs

In Dell Computer Corp. v. Union des consommateurs, 2007 SCC 34, the Supreme Court considered the relationship between arbitration agreements and class proceedings.

The Court addressed the competence-competence principle and the circumstances in which a court should refer a jurisdictional challenge to an arbitrator.

The decision illustrates the general judicial approach of respecting arbitration agreements while preserving the court’s ability to address certain questions of validity and jurisdiction.

14.4 Seidel v. TELUS Communications Inc.

In Seidel v. TELUS Communications Inc., 2011 SCC 15, the Supreme Court examined the interaction between an arbitration clause and statutory consumer protection rights.

The Court considered whether the relevant provincial legislation permitted certain claims to proceed in court despite the arbitration agreement.

The decision demonstrates that arbitration clauses cannot automatically exclude statutory remedies where legislation expressly preserves access to the courts or restricts contractual waiver of particular rights.

The interpretation of the relevant statute remains essential.

14.5 TELUS Communications Inc. v. Wellman

In TELUS Communications Inc. v. Wellman, 2019 SCC 19, the Supreme Court considered the enforceability of arbitration agreements in a dispute involving consumer and non-consumer claims.

The Court upheld the application of the relevant arbitration legislation to claims brought by business customers, distinguishing them from consumer claims protected by statutory provisions.

The case illustrates that the enforceability of arbitration clauses may depend on the legal status of the parties and the precise wording of the applicable statute.

14.6 Uber Technologies Inc. v. Heller

A particularly important decision is Uber Technologies Inc. v. Heller, 2020 SCC 16.

The case concerned a standard-form agreement requiring an Uber Eats driver in Ontario to resolve disputes through arbitration in the Netherlands. The contractual process involved substantial upfront costs, making it practically inaccessible to the driver.

The Supreme Court held that the arbitration clause was unconscionable and unenforceable.

The majority emphasised the serious inequality of bargaining power and the improvident nature of the arrangement. The practical cost of commencing arbitration was disproportionate to the driver’s financial circumstances and undermined meaningful access to a remedy.

The decision is significant because it confirms that contractual arbitration clauses are not immune from ordinary principles of contract law and judicial scrutiny.

It does not establish that foreign arbitration clauses or expensive arbitration procedures are automatically invalid. Rather, the enforceability of a clause must be assessed in its factual and legal context.

15. Conduct of Arbitration Proceedings

15.1 Appointment and independence of the arbitrator

The arbitrator must be independent and impartial.

The parties may agree on a particular individual or use an institutional appointment mechanism. If they cannot agree, the applicable statute or arbitration rules may provide a procedure for appointment.

Potential conflicts of interest should be disclosed. An arbitrator’s independence is essential to the legitimacy of the process.

15.2 Procedural flexibility

Arbitration is often more flexible than court litigation.

The parties may agree on document production, witness evidence, expert reports, hearing format, and procedural timetables.

The arbitrator must nevertheless conduct the proceeding fairly and give each party a reasonable opportunity to present its case and respond to the opposing party’s arguments.

Flexibility does not mean that procedural fairness can be disregarded.

15.3 Evidence and hearings

Depending on the agreement and applicable rules, arbitration may be conducted through written submissions, oral hearings, or a combination of both.

The parties may present documents, witness testimony, expert evidence, and legal submissions.

Commercial arbitration can involve highly technical evidence, particularly in construction, engineering, finance, international trade, and intellectual property disputes.

The arbitrator must evaluate the evidence and apply the relevant legal standards before issuing an award.

15.4 Arbitration awards

An arbitration award is the arbitrator’s formal decision.

It may determine liability, financial compensation, contractual obligations, interest, costs, and other remedies within the arbitrator’s jurisdiction.

An award is generally binding on the parties, subject to the limited grounds for appeal, setting aside, or other judicial intervention established by the applicable law.

The finality of arbitration is one of its principal advantages, but it also means that parties may have fewer opportunities to challenge an unfavourable decision than they would have through ordinary court appeals.

16. Judicial Review and Enforcement of Arbitration Awards

16.1 Limited court intervention

Canadian arbitration legislation generally reflects a policy of limited judicial intervention.

Courts do not ordinarily reconsider an arbitration award simply because one party disagrees with the arbitrator’s interpretation of the evidence or law.

Judicial intervention is generally confined to grounds established by legislation, such as jurisdictional defects, procedural unfairness, invalidity of the arbitration agreement, or other recognised grounds for setting aside an award.

The availability and scope of an appeal depend on the relevant statute and, in some circumstances, the parties’ agreement.

16.2 Setting aside an award

An award may be challenged where the statutory requirements are met.

Possible grounds include:

• A party lacked legal capacity;
• The arbitration agreement was invalid;
• A party did not receive proper notice or a fair opportunity to present its case;
• The arbitrator exceeded the authority granted by the arbitration agreement;
• The tribunal was improperly constituted;
• The award deals with matters beyond the scope of the submission; or
• The award conflicts with applicable public policy in circumstances recognised by law.

The grounds are not unlimited. Courts generally seek to preserve the finality and effectiveness of arbitration.

16.3 Recognition and enforcement

If a party refuses to comply with an award, the successful party may seek judicial recognition or enforcement under the applicable legislation.

Once recognised or enforced, an award may generally be executed through court procedures in a manner comparable to the enforcement of a judgment, subject to the governing legal framework.

International arbitration awards benefit from a separate framework under the Convention on the Recognition and Enforcement of Foreign Arbitral Awards, commonly known as the New York Convention, as implemented in Canadian law.

The Convention promotes the recognition and enforcement of qualifying foreign arbitral awards, subject to limited defences.

Canada’s participation in the international arbitration system is particularly important for cross-border commercial transactions.

17. Mediation and Arbitration Compared

Although both mediation and arbitration are ADR mechanisms, they have different legal characteristics.

Feature	Mediation	Arbitration
Role of neutral third party	Facilitates negotiation	Decides the dispute
Control over outcome	Retained by parties	Exercised by arbitrator
Binding decision	Only if settlement is reached and bindingly recorded	Generally binding award
Confidentiality	Generally confidential, subject to applicable rules	Often private, but confidentiality depends on law and agreement
Procedure	Flexible and usually less formal	Structured adjudicative process
Evidence	No formal determination of admissibility is normally required	Evidence is presented under applicable procedural rules
Appeal or review	Not applicable to the mediator’s non-decision	Limited statutory grounds may apply
Main objective	Facilitate agreement	Resolve dispute through adjudication

The choice between the two depends on the parties’ objectives.

Mediation may be appropriate where the parties wish to preserve a business relationship, explore non-financial solutions, or avoid the risks of an adjudicated outcome.

Arbitration may be more appropriate where the parties require a binding determination, specialised expertise, or a private adjudicative process.

Neither mechanism is universally superior to court litigation. Some disputes require authoritative public decisions, judicial remedies, or procedural protections that cannot adequately be achieved through private processes.

18. ADR and Class Actions: The Relationship Between Collective Litigation and Private Settlement

Class actions and ADR may appear to serve different purposes, but they frequently interact.

18.1 Mediation of class proceedings

Class proceedings may be resolved through mediation.

A class action can involve complex legal and factual issues, substantial litigation costs, and uncertainty for both claimants and defendants. Mediation may provide an opportunity to negotiate a settlement before the parties incur the expense of a full trial.

However, class action mediation is not equivalent to ordinary two-party mediation.

The representative plaintiff negotiates on behalf of a wider group, and the proposed settlement may affect persons who have not personally participated in the discussions.

Consequently, even where the parties reach agreement, the settlement must receive the approval required by the relevant class proceedings legislation.

The court’s role is to protect the interests of absent class members and assess whether the proposed agreement is fair and reasonable.

18.2 Arbitration clauses and collective claims

Arbitration clauses may also affect proposed class proceedings.

A defendant may argue that the representative plaintiff or class members agreed to resolve disputes individually through arbitration rather than through court litigation.

The outcome depends on the validity and scope of the arbitration agreement, the applicable arbitration legislation, and any statutory protections governing the relevant claims.

The Supreme Court’s decisions in Dell, Seidel, TELUS, and Heller demonstrate that the relationship between arbitration agreements and collective proceedings cannot be resolved through a single universal rule.

A valid arbitration clause may be enforceable in some circumstances. In others, legislation, unconscionability, or public policy may prevent the clause from excluding access to a court remedy.

18.3 Collective settlement and individual arbitration

A further difficulty arises where a proposed class includes individuals who have different contractual arrangements or different arbitration clauses.

Some members may be subject to arbitration agreements while others are not. Some may have entered contracts at different times, under different legal frameworks, or with different entities.

These differences may affect class definition, common issues, and the appropriate procedure for resolving claims.

Courts must consider whether the proposed collective process can deal fairly with these variations and whether separate treatment or subclasses are necessary.

19. Choosing Between Litigation, Mediation, and Arbitration

The choice of dispute-resolution mechanism should be based on the nature of the dispute rather than a general assumption that ADR is always preferable.

Several factors are relevant.

Complexity. Highly technical commercial disputes may benefit from an arbitrator with specialised knowledge. However, complex issues of public law or statutory interpretation may require judicial determination.

Cost. Mediation is often less expensive than arbitration or litigation, but the actual cost depends on preparation, professional fees, and the number of parties involved.

Urgency. Arbitration and mediation may be organised more quickly than court proceedings, although this is not guaranteed.

Confidentiality. Parties may prefer private dispute resolution where commercial information or sensitive business relationships are involved. However, confidentiality must be assessed under the relevant legal framework.

Need for precedent. A court judgment may clarify the law and create precedent. Arbitration generally does not serve the same public law-development function.

Relationship between parties. Mediation may be particularly useful where parties expect to continue working together.

Power imbalance. A dispute involving unequal bargaining power requires particular attention. A private process should not become a mechanism through which a stronger party prevents a weaker party from obtaining a meaningful remedy.

Public interest. Disputes involving statutory rights, public institutions, or matters of broader public importance may require judicial oversight or a publicly accessible determination.

20. Practical Example: A National Consumer Claim

Assume that a Canadian telecommunications company introduces a monthly administrative fee that is allegedly inconsistent with its contractual obligations and consumer protection legislation.

The company applies the fee to hundreds of thousands of customers across several provinces.

Individual customers may have paid relatively small amounts. Many may not consider individual litigation worthwhile, even if they believe the charge was unlawful.

A proposed class action could be commenced on behalf of customers affected by the same fee.

The representative plaintiff would need to identify a legally recognisable cause of action, define the class, establish common issues, demonstrate that collective treatment is preferable under the applicable statute, and propose an adequate representative and litigation plan.

The company may contest certification, arguing that the claims depend on different contracts, customer circumstances, or provincial laws.

The court would assess whether the common issues can be resolved collectively and whether the proposed proceeding is appropriate.

If certification is granted, the parties may exchange evidence and continue litigation. They may also explore mediation.

Suppose mediation produces a settlement under which the company agrees to refund eligible customers, change its billing practices, and pay an agreed amount towards the costs of the proceeding.

The settlement cannot simply be imposed on the class by the representative plaintiff. It must receive the required judicial approval. The court will examine whether the settlement is fair and reasonable, whether class members have been adequately informed, and whether the proposed distribution method is appropriate.

If the parties cannot settle, the litigation may proceed to trial on the common issues, followed by individual determinations where necessary.

The example illustrates the complementary roles of collective litigation, mediation, and judicial supervision. The class action makes the claims practically capable of being pursued, mediation may facilitate a negotiated resolution, and the court protects the interests of persons who are represented but not individually present throughout the process.

21. Challenges and Criticisms of Class Actions and ADR

21.1 The expense and duration of class actions

Class proceedings may take years to resolve. Certification disputes, appeals, expert evidence, discovery, and settlement approval can create substantial costs and delay.

The collective nature of the proceeding can make case management particularly demanding.

A class action does not automatically guarantee rapid or inexpensive justice.

21.2 Conflicts of interest

The representative plaintiff, class counsel, third-party funders, and class members may have different interests.

A settlement may benefit some members more than others. Some individuals may prefer a faster, smaller recovery, while others may wish to pursue the possibility of greater compensation through trial.

Judicial supervision is essential to address these conflicts.

21.3 Difficulty of distributing compensation

Even after a successful judgment or settlement, distributing compensation can be complicated.

Some class members may be difficult to identify. Others may lack purchase records or other supporting documents. The cost of processing individual claims may be disproportionate to the value of each payment.

The administration of a class action is therefore a substantive part of the justice process, not merely a technical step following judgment.

21.4 Unequal bargaining power in ADR

Mediation and arbitration can be affected by differences in financial resources, legal knowledge, bargaining strength, and access to professional representation.

A party with limited resources may feel pressured to accept an unfavourable settlement or may be unable to participate effectively in an expensive arbitration.

The Supreme Court’s decision in Uber Technologies Inc. v. Heller demonstrates that courts may intervene where an arbitration clause is unconscionable and effectively prevents a weaker party from pursuing a remedy.

21.5 Confidentiality and public accountability

Private dispute resolution can protect sensitive information and facilitate settlement. However, it may also reduce public visibility of disputes involving important legal or institutional questions.

Court judgments contribute to the development of legal principles and allow the public to understand how legal rights are interpreted.

The increasing use of private dispute resolution therefore raises questions about transparency, precedent, and public accountability.

21.6 The limits of settlement

Not every dispute should be settled.

Where a case raises an important question of statutory interpretation, constitutional rights, public administration, or the legality of institutional conduct, a judicial determination may provide a more appropriate form of resolution.

Settlement is valuable, but it should not be treated as an objective that overrides the protection of legal rights or the public interest.

22. Key Takeaways

1. Class actions allow representative plaintiffs to pursue claims on behalf of a defined group whose claims raise common issues.

2. Canada has no single national class action statute. Provincial legislation and the Federal Courts Rules establish different procedural frameworks.

3. Quebec regulates class actions through articles 571–604 of its Code of Civil Procedure, using an authorisation procedure distinct from common-law certification.

4. Certification is a procedural decision. It does not establish that the defendant is liable.

5. Common certification requirements include a legally viable claim, an identifiable class, common issues, a preferable procedure, and an adequate representative plaintiff.

6. The Supreme Court of Canada has developed important principles in Dutton, Hollick, Pro-Sys, and AIC Limited v. Fischer.

7. Class members may be bound by a judgment or approved settlement even if they have not participated actively in the litigation.

8. Many common-law provincial regimes use an opt-out model, while Quebec generally includes persons within the authorised class unless they take the required steps to exclude themselves.

9. Class action settlements generally require judicial approval to protect absent class members.

10. Funding, legal fees, notice, and distribution arrangements are important aspects of class action administration.

11. Multi-jurisdictional proceedings can raise complex issues of jurisdiction, coordination, and competing class actions.

12. Mediation is a facilitated negotiation process. The mediator does not decide the dispute or impose a settlement.

13. Arbitration is an adjudicative process in which an arbitrator issues a generally binding award.

14. Arbitration is governed by provincial, territorial, and federal legislation, depending on the nature and jurisdiction of the dispute.

15. Canadian courts generally respect valid arbitration agreements but may intervene where statutory protections, unconscionability, jurisdictional defects, or other recognised grounds apply.

16. Uber Technologies Inc. v. Heller, 2020 SCC 16, is an important authority concerning unfair arbitration clauses and access to justice.

17. Class proceedings may be resolved through mediation, but settlements affecting the class remain subject to judicial approval.

18. ADR is not automatically preferable to litigation. The appropriate method depends on the nature of the dispute, the parties’ circumstances, and the public interest.

23. Frequently Asked Questions

1. What is a class action in Canada?

A class action is a civil proceeding in which one or more representative plaintiffs pursue claims on behalf of a defined group of persons whose claims raise common legal or factual issues.

2. What is the purpose of a class action?

Its principal purposes are to improve access to justice, promote judicial economy, avoid inconsistent decisions, and provide an effective procedure for resolving claims that may be impractical to litigate individually.

3. Are class actions governed by one federal statute?

No. Most class actions are governed by provincial legislation. The Federal Court has a separate statutory framework under Part 5.1 of the Federal Courts Rules for proceedings within its jurisdiction.

4. Can a class action include residents of different provinces?

Yes. A provincial court may, where the legal and jurisdictional requirements are satisfied, certify a class that includes persons residing outside its province. Multi-jurisdictional proceedings may require additional coordination.

5. What is certification?

Certification is the judicial process through which a proposed class action is authorised to proceed collectively under the applicable legislation.

6. Does certification mean that the defendant is guilty or liable?

No. Certification is procedural. It determines whether the action is suitable for collective litigation, not whether the defendant has committed a legal wrong.

7. What is a common issue?

A common issue is a question of law or fact shared by class members that can be determined collectively. It may concern the defendant’s conduct, the interpretation of a contract, or the existence of a legal duty.

8. Who can be a representative plaintiff?

A representative plaintiff is generally a person who is a member of the proposed class and who can fairly and adequately represent the interests of the group. The precise requirements depend on the applicable legislation.

9. Do class members have to join a class action individually?

In many common-law provincial proceedings, class members are included automatically unless they opt out. In Quebec, persons within the authorised class are generally included unless they follow the applicable exclusion procedure.

10. Can a class member leave a class action?

In opt-out proceedings, class members may generally exclude themselves by following the prescribed procedure and deadline. The consequences of opting out should be considered carefully.

11. Can a class action be settled without a trial?

Yes. Many class actions are resolved through settlement. However, the settlement generally requires judicial approval before it can bind the class.

12. Why must a court approve a class action settlement?

Because the agreement may affect people who did not personally negotiate it. Judicial approval helps ensure that the settlement is fair, reasonable, and protective of the interests of the class.

13. Who pays for a class action?

Funding arrangements vary. Class counsel may use contingency fees, litigation funding may be available, and certain public funding mechanisms exist. Costs and funding are governed by applicable legislation and professional rules.

14. What is third-party litigation funding?

It is an arrangement under which an external funder provides financial support for litigation in return for an agreed payment if the proceeding succeeds. Such arrangements may be subject to disclosure and judicial approval.

15. What is mediation?

Mediation is a dispute-resolution process in which a neutral third party facilitates negotiation between the parties. The mediator does not impose a decision.

16. Is mediation mandatory in Canada?

Not universally. Some provinces and courts require mediation in specified proceedings. Ontario, for example, has a mandatory mediation programme for certain civil actions in Toronto, Ottawa, and Windsor.

17. Can a mediator force parties to settle?

No. The mediator facilitates negotiation, but the parties retain control over whether to reach an agreement.

18. Is mediation confidential?

Mediation is generally confidential, subject to the applicable legislation, procedural rules, agreement, and recognised exceptions.

19. What happens if mediation fails?

The parties may continue with litigation or proceed through another agreed dispute-resolution mechanism. Failure to reach settlement does not ordinarily determine the merits of the dispute.

20. What is arbitration?

Arbitration is a private adjudicative process in which an independent arbitrator hears the parties’ positions and evidence and issues a decision known as an arbitration award.

21. Is an arbitration award legally binding?

Generally, yes. An award is ordinarily binding on the parties, subject to applicable statutory grounds for appeal, setting aside, or judicial intervention.

22. Can an arbitration clause prevent a person from suing in court?

A valid and enforceable arbitration clause may require the parties to arbitrate disputes covered by the agreement. However, legislation, invalidity, unconscionability, or other recognised grounds may prevent enforcement.

23. What did the Supreme Court decide in Uber Technologies Inc. v. Heller?

The Court held that the arbitration clause in the particular standard-form agreement was unconscionable and unenforceable because the substantial upfront costs and inequality of bargaining power effectively prevented the driver from pursuing a meaningful remedy.

24. Can a class action be settled through mediation?

Yes. Mediation may help the parties negotiate a class-wide settlement. However, the settlement must receive the judicial approval required by the applicable class proceedings legislation.

25. Is arbitration always preferable to litigation?

No. Arbitration may offer privacy, procedural flexibility, and specialised expertise, but it can be expensive and may provide limited appeal rights. Litigation may be more appropriate where public accountability, authoritative precedent, constitutional issues, or statutory remedies are important.

24. Principal Legislation and Official Legal Resources

The following legislation and institutional resources provide a foundation for further study of class proceedings and ADR in Canada.

Constitutional and federal framework

• Constitution Act, 1867
• Federal Courts Act
• Federal Courts Rules — particularly Part 5.1 on class proceedings.
• Commercial Arbitration Act

Provincial class proceedings legislation and civil procedure

• Ontario Class Proceedings Act, 1992
• British Columbia Class Proceedings Act
• Quebec Code of Civil Procedure — Title III, articles 571–604.
• Ontario Rules of Civil Procedure

Arbitration and mediation

• Ontario Arbitration Act, 1991
• Government of Ontario: Mandatory Mediation for Civil Cases
• Government of Quebec: Arbitration
• Government of Quebec: Class Actions

Important Supreme Court of Canada decisions

• Western Canadian Shopping Centres Inc. v. Dutton, 2001 SCC 46.
• Hollick v. Toronto (City), 2001 SCC 68.
• Dell Computer Corp. v. Union des consommateurs, 2007 SCC 34.
• Seidel v. TELUS Communications Inc., 2011 SCC 15.
• Pro-Sys Consultants Ltd. v. Microsoft Corporation, 2013 SCC 57.
• AIC Limited v. Fischer, 2013 SCC 69.
• TELUS Communications Inc. v. Wellman, 2019 SCC 19.
• Uber Technologies Inc. v. Heller, 2020 SCC 16.

The official Supreme Court of Canada decisions database is available at decisions.scc-csc.ca.

Conclusion

Class actions and alternative dispute resolution are essential elements of the contemporary Canadian civil justice system. They respond to different but related problems: the difficulty of enforcing shared rights through individual lawsuits and the cost, delay, and adversarial character of conventional litigation.

Class proceedings provide a mechanism through which individuals can pursue claims collectively. They are particularly important where the alleged conduct affects a large number of people, individual claims are economically impractical, or common legal questions should be resolved consistently. Their effectiveness, however, depends on careful certification, adequate representation, appropriate notice, judicial supervision, and fair distribution of remedies.

Mediation and arbitration offer different methods of resolving disputes. Mediation preserves the parties’ control over the outcome, while arbitration provides a private adjudicative alternative to court proceedings. Both can contribute to efficiency and flexibility, but neither should be treated as a universal substitute for public justice.

The Canadian legal framework reflects a continuing effort to balance procedural efficiency with substantive fairness. Collective litigation must protect the rights of absent class members, while ADR must respect the legal protections and genuine autonomy of the parties. The courts remain essential in supervising these processes, enforcing valid agreements, protecting access to justice, and ensuring that private dispute resolution does not undermine mandatory legal rights.

Ultimately, the significance of these mechanisms lies not merely in reducing the number of cases that reach trial, but in making the enforcement of civil rights more accessible, coherent, and effective.