Judicial Review of Administrative Decisions in Canada: Reasonableness, Correctness, and Standards of Review

Judicial Review of Administrative Decisions in Canada: Reasonableness, Correctness, and Standards of Review

Introduction

Judicial review is one of the principal mechanisms through which Canadian courts ensure that administrative authorities exercise public power lawfully. Government departments, regulatory agencies, professional bodies, immigration decision-makers, municipal authorities, and administrative tribunals make decisions that can profoundly affect individuals, businesses, professional activities, and public institutions. Although legislatures entrust these bodies with specialized responsibilities and, frequently, substantial discretion, their decisions are not beyond the reach of the law.

The central purpose of judicial review is to maintain the constitutional principle that public authority must be exercised within legally established limits. A public decision-maker must act within the jurisdiction conferred by legislation, respect procedural fairness, interpret and apply the governing law appropriately, and provide a decision that can be justified under the applicable legal framework. Where an administrative decision fails to meet these requirements, a court may intervene.

Canadian judicial review has developed through a continuing effort to reconcile two important considerations. On the one hand, administrative bodies must be able to perform the functions assigned to them by Parliament and provincial legislatures. They may possess specialist expertise, administer complex statutory schemes, and make policy-sensitive decisions that are not ordinarily entrusted to courts. On the other hand, administrative expertise and statutory discretion cannot displace the rule of law or authorize decisions that exceed legal boundaries.

The modern framework for reviewing the merits of administrative decisions is principally governed by the Supreme Court of Canada’s judgment in Canada (Minister of Citizenship and Immigration) v. Vavilov, 2019 SCC 65. That decision established reasonableness as the presumptive standard of review, identified circumstances in which correctness applies, and provided a detailed account of how courts should assess the justification offered by administrative decision-makers.

The distinction between reasonableness and correctness is therefore fundamental. It determines the nature of the court’s inquiry, the degree of deference owed to the administrative decision-maker, and the circumstances in which a court may set aside a decision because it considers the decision legally wrong.

This article examines the constitutional and statutory foundations of judicial review in Canada, the distinction between appeals and judicial review, the standards of reasonableness and correctness, the framework established by Vavilov, the principal grounds and remedies of review, and the practical consequences of judicial supervision for public authorities and those affected by their decisions.

1. The constitutional foundations of judicial review

Judicial review is not merely a procedural remedy created for the convenience of individuals dissatisfied with administrative decisions. It is an important expression of the constitutional principle that all public power must remain subject to law.

Canada’s constitutional structure recognizes the authority of legislatures to create administrative institutions and assign them specialized functions. Parliament and provincial legislatures may establish tribunals, authorize regulators to issue binding orders, and confer discretion on officials responsible for administering public programs. Yet the exercise of these powers remains subject to constitutional limitations and judicial supervision.

1.1 The rule of law and the supervision of public power

The rule of law requires government action to be authorized by law and exercised within legal limits. An administrative decision-maker cannot claim immunity from judicial supervision simply because legislation has entrusted it with specialist responsibilities.

Judicial review serves several related constitutional purposes:

• It ensures that public authorities do not exceed their statutory jurisdiction.
• It requires administrative decision-makers to respect the procedures prescribed by law.
• It protects the constitutional allocation of powers and the supremacy of the Constitution.
• It ensures that administrative decisions comply with the legal standards applicable to the exercise of discretion.
• It preserves the ability of courts to resolve legal questions that require authoritative and consistent answers.

The courts do not supervise administrative authorities because they are institutionally superior in every subject matter. Rather, they exercise a constitutional judicial function: determining whether public power has been exercised lawfully.

The distinction is important. A court reviewing a decision of a professional regulator, for example, does not ordinarily conduct a new professional-disciplinary hearing. It examines whether the regulator acted within its statutory mandate, followed the required procedure, and reached a decision that satisfies the applicable standard of review.

1.2 Section 96 and the supervisory jurisdiction of superior courts

Section 96 of the Constitution Act, 1867 provides for the appointment of judges to superior courts by the federal executive. Over time, the Supreme Court of Canada has recognized that the superior courts possess an important constitutionally protected supervisory jurisdiction over administrative decision-makers.

Legislatures may create specialized tribunals and assign them exclusive authority over particular statutory disputes. They may also establish internal appeal mechanisms and prescribe procedures for challenging decisions. However, they cannot entirely remove the constitutionally protected supervisory role of superior courts.

This principle does not mean that every administrative decision can be challenged in any court, or that judicial review is available without procedural restrictions. Statutes may determine the appropriate forum, establish limitation periods, require exhaustion of certain remedies, and define the scope of appeals. The constitutional point is that the supervisory function of superior courts cannot simply be abolished.

1.3 Constitutional supremacy and administrative decisions

Section 52(1) of the Constitution Act, 1982 establishes the supremacy of the Constitution of Canada. Any law inconsistent with the Constitution is, to the extent of the inconsistency, of no force or effect.

Administrative authorities must therefore exercise their powers consistently with constitutional requirements. An administrative decision may be challenged where it violates the Charter, exceeds constitutional jurisdiction, or rests on an invalid legal rule.

Constitutional questions are particularly significant in the standards-of-review framework because the courts retain responsibility for providing authoritative interpretations of the Constitution. A tribunal may have authority to consider constitutional arguments within its jurisdiction, but the constitutional validity and interpretation of legal rules remain subject to judicial determination under the applicable standard.

2. Judicial review and statutory appeals: two different forms of judicial supervision

An essential starting point in any administrative-law dispute is identifying whether the legislation provides an appeal, whether judicial review is available, or whether both mechanisms may be used in relation to different issues.

Although appeals and judicial review can sometimes address overlapping concerns, they are not interchangeable.

2.1 The nature of a statutory appeal

A statutory appeal exists where legislation expressly authorizes a party to challenge an administrative decision before a court or another designated body.

The statute defines the scope of the appeal. It may permit appeals on:

• Questions of law.
• Questions of fact.
• Questions of mixed fact and law.
• Questions of jurisdiction.
• All issues, subject to statutory limitations.

The applicable standard of appellate review depends on the legislation and the nature of the question. Where a court hears an appeal on a question of law, the ordinary appellate standard is correctness. Findings of fact are generally reviewed for palpable and overriding error, while questions of mixed fact and law are ordinarily reviewed for palpable and overriding error unless an extricable error of law is present.

These appellate principles must be distinguished from the standards applied in judicial review under Vavilov.

A statutory appeal may therefore permit a court to examine certain issues more directly than it would under reasonableness review. The legislature’s decision to provide an appeal is legally significant because it determines the institutional relationship between the tribunal and the reviewing court.

2.2 The nature of judicial review

Judicial review is a supervisory process. Its purpose is to determine whether an administrative decision or action is lawful.

The court does not ordinarily rehear the dispute as though it were the original decision-maker. Nor does it simply replace the administrative authority’s decision with the outcome it considers preferable.

Instead, the court examines matters such as:

• Whether the decision-maker had legal authority.
• Whether the decision was made through a fair process.
• Whether the decision-maker interpreted and applied the governing law appropriately.
• Whether the factual findings and reasoning are defensible under the applicable standard.
• Whether constitutional requirements were respected.

The reviewing court’s role is therefore defined by the distinction between legality and merits. A decision may be legally reasonable even if the reviewing judge would have reached a different conclusion. Conversely, a decision may be unreasonable even if the authority acted in good faith and possessed relevant expertise.

2.3 Can judicial review remain available where a statutory appeal exists?

The existence of a statutory appeal does not necessarily eliminate judicial review. The answer depends on the statutory scheme and the nature of the issue.

The Supreme Court clarified this point in Yatar v. TD Insurance Meloche Monnex, 2024 SCC 8. The case concerned an administrative tribunal decision involving insurance benefits and a statutory appeal limited to questions of law. The claimant also sought judicial review in relation to matters not covered by the limited appeal mechanism.

The Supreme Court held that the limited statutory appeal did not automatically preclude judicial review of questions of fact or mixed fact and law. The Court rejected the suggestion that judicial review should be available only in exceptional or rare cases simply because the legislature had created a limited right of appeal.

The decision illustrates that statutory appeals and judicial review may operate alongside one another, depending on the scope of the legislation. A limited appeal on questions of law does not necessarily prevent a court from exercising supervisory jurisdiction over other legal issues arising from the administrative decision. Yatar v. TD Insurance Meloche Monnex+1

2.4 Alternative remedies and exhaustion of administrative procedures

Before seeking judicial review, a party may need to consider whether the governing legislation provides an internal reconsideration process or an administrative appeal.

Courts generally expect parties to use adequate alternative remedies where the statutory scheme makes them available and appropriate. This principle is sometimes described as the exhaustion of administrative remedies.

It reflects respect for the institutional structure established by the legislature. An administrative body may be better positioned to correct an error through reconsideration, internal appeal, or a specialized review procedure.

However, exhaustion is not an inflexible rule requiring every possible internal procedure to be pursued in every circumstance. The adequacy of the alternative remedy, the nature of the alleged error, the statutory framework, and the interests of justice may all be relevant.

A remedy may be inadequate where it cannot address the legal problem, where the authority lacks jurisdiction to grant the necessary relief, or where the circumstances make judicial intervention appropriate without requiring further administrative steps.

2.5 The importance of identifying the correct route

A person challenging an administrative decision should therefore begin by examining the enabling statute.

The relevant questions include:

1. Does the statute provide an internal reconsideration procedure?
2. Is there a statutory right of appeal?
3. Which issues may be appealed?
4. Which court or tribunal has jurisdiction?
5. Is judicial review expressly available or otherwise permitted?
6. Does the statute impose a limitation period?
7. Are there procedural requirements that must be satisfied before a court application?

Choosing the wrong procedure can result in delay, unnecessary expense, or dismissal for lack of jurisdiction. The distinction between appeal and judicial review is consequently a practical as well as a doctrinal issue.

3. The development of standards of review in Canadian administrative law

The modern standards-of-review framework did not emerge in a single decision. It developed through decades of judicial attempts to determine how much deference courts should give administrative interpretations and decisions.

The central tension has always been between legislative intent and the rule of law. Courts must respect the legislature’s decision to delegate authority, but they must also ensure that administrative bodies do not exceed their legal powers.

3.1 The early approach: jurisdictional questions and deference

Historically, Canadian courts often distinguished between questions considered jurisdictional and questions considered internal to an administrative body’s assigned expertise.

Courts were generally more willing to intervene where a tribunal was believed to have exceeded its jurisdiction. They were more deferential where the question fell within the tribunal’s specialist mandate.

However, the distinction between jurisdictional and non-jurisdictional questions became difficult to apply consistently. Many statutory interpretation disputes could be characterized as either questions of jurisdiction or questions arising within the tribunal’s assigned responsibilities.

This produced uncertainty about the level of judicial supervision required.

3.2 Dunsmuir v. New Brunswick and the two-standard framework

In Dunsmuir v. New Brunswick, 2008 SCC 9, the Supreme Court attempted to simplify the standards-of-review framework.

The Court reduced the principal standards to two:

• Correctness.
• Reasonableness.

The correctness standard required the reviewing court to determine the legally correct answer. The reasonableness standard recognized that administrative decision-makers could reach more than one legally acceptable outcome.

Although Dunsmuir simplified the terminology, its framework still generated considerable litigation concerning how courts should select the appropriate standard. The distinction between correctness and reasonableness remained difficult to apply in practice.

3.3 The Vavilov reformulation

The Supreme Court substantially revised the framework in Canada (Minister of Citizenship and Immigration) v. Vavilov, 2019 SCC 65.

The Court explained that the standard-of-review analysis should begin with a presumption of reasonableness when a court reviews the merits of an administrative decision. The presumption reflects the legislature’s decision to entrust the matter to an administrative decision-maker rather than to a court.

The Court then identified specific circumstances in which the presumption is rebutted and correctness applies.

The reformulation sought to make the selection of the standard more predictable and to provide a more structured approach to assessing administrative reasons.

The Court also emphasized the importance of a culture of justification. Public authorities must be able to explain decisions that affect people, and those decisions must be justified in light of the legal and factual constraints governing the exercise of their powers. canlii.org+2

4. Reasonableness review: the presumptive standard

Reasonableness is the presumptive standard for reviewing the merits of administrative decisions in Canada. It is the starting point under Vavilov, subject to the recognized exceptions.

The standard reflects the idea that legislatures often entrust decision-making to administrative bodies because they possess specialist knowledge, institutional experience, or responsibility for implementing a particular statutory scheme.

A reviewing court applying reasonableness does not determine whether the administrative decision is the only possible answer. It asks whether the decision is justified in light of the relevant legal and factual constraints.

4.1 What does reasonableness mean?

A reasonable administrative decision must be based on an internally coherent and rational chain of analysis and must be justified in relation to the constraints imposed by the relevant law and facts.

This formulation has two central dimensions.

First, the decision must be internally coherent. Its reasoning should not contain fundamental contradictions, logical gaps, or conclusions that cannot be reconciled with the analysis supporting them.

Second, the decision must be justified in light of the external constraints relevant to the decision-maker. These may include the statutory language, the purpose of the legislation, the evidence, the submissions of the parties, established legal principles, and the consequences of the decision.

Reasonableness is therefore not simply a subjective assessment of whether a judge considers an outcome sensible. It is a structured legal inquiry.

4.2 Reasonableness is not a search for the best decision

A reviewing court must not transform reasonableness review into a fresh determination of the dispute.

The court should not ask what decision it would have made in place of the administrative decision-maker. Nor should it attempt to identify every possible outcome and then decide which one it prefers.

This distinction is essential because reasonableness review respects the legislature’s choice of decision-maker. The administrative authority has been entrusted with the decision, and the reviewing court’s task is to determine whether the decision falls within the boundaries of lawful administrative reasoning.

A decision can be reasonable even if the reviewing judge would have interpreted the evidence differently or preferred another outcome.

Equally, the fact that a decision-maker has relevant expertise does not automatically make its conclusion reasonable. Expertise cannot cure a failure to interpret the statute lawfully or justify a conclusion unsupported by the record.

4.3 The decision must be justified in light of legal constraints

The legal constraints on a decision-maker are among the most important elements of reasonableness review.

They include:

The governing statutory text. The decision must be consistent with the words Parliament or the provincial legislature used. A decision-maker cannot ignore clear statutory language.

The statutory purpose. The interpretation and application of the statute must be consistent with the objectives of the legislative scheme.

The statutory context. Individual provisions must be interpreted in relation to the wider Act, its definitions, related provisions, and its overall structure.

Relevant legal principles. The decision-maker must respect binding judicial authority and other applicable legal rules.

The evidence and record. Factual conclusions must be supported by the material before the decision-maker.

The submissions of the parties. Where a central argument is raised, the decision-maker may need to address it sufficiently to demonstrate that the issue was understood and considered.

The consequences of the decision. The importance and effects of a decision may affect what adequate justification requires, particularly where the decision has serious consequences for an individual.

The weight of each constraint depends on the particular administrative scheme. A regulator interpreting a technical provision may need to consider the specialized statutory context, while an immigration decision-maker must carefully engage with the statutory grounds governing admissibility, status, or removal.

4.4 The role of reasons: the reasons-first approach

A defining feature of Vavilov is the emphasis on the decision-maker’s reasons.

Where reasons are required, they are the primary starting point for reasonableness review. They show how the authority understood the issue, interpreted the law, assessed the evidence, and reached its conclusion.

A court should read the reasons holistically and contextually rather than isolate individual sentences and treat every imperfection as fatal.

The reasons-first approach does not mean that the court ignores the administrative record. The record may help explain the decision, clarify the context, or demonstrate whether the decision-maker properly considered relevant evidence. However, the reviewing court must not invent a justification that the decision-maker did not provide.

Reasons need not resemble a judgment of a superior court. Administrative decision-makers may use concise explanations, standardized formats, or institutional templates where appropriate. The legal question is whether the reasoning, viewed in context, adequately justifies the outcome.

The Supreme Court’s official explanation of Vavilov emphasizes that the decision-maker’s actual reasoning is central to the reviewing court’s inquiry. The court must examine the decision that was made, not construct a new decision of its own. scc-csc.gc.ca+1

4.5 Internal coherence and logical consistency

A decision may be unreasonable where its reasoning contains contradictions or gaps that undermine its conclusion.

For example, an administrative tribunal might accept that a statutory requirement has been satisfied but then reject an application on the basis that the same requirement has not been met, without explaining the apparent contradiction.

A decision may also be unreasonable where it relies on evidence that does not support the factual finding made, or where the conclusion does not logically follow from the analysis.

Not every drafting imperfection is sufficient to invalidate a decision. The defect must be significant enough to undermine the justification of the outcome.

4.6 Failure to address central issues

An administrative decision-maker does not have to respond individually to every argument, document, or submission.

However, a failure to address a central issue may render a decision unreasonable, particularly where the issue could materially affect the result.

For example, if an applicant raises a substantial statutory interpretation argument that directly challenges the legal basis for refusal, the decision-maker may need to explain why the argument is rejected.

Similarly, where an important piece of evidence directly contradicts a central factual finding, the decision-maker may need to explain how that evidence was assessed.

The obligation is not to write exhaustive reasons. It is to demonstrate that the decision is justified in relation to the issues that matter.

4.7 The record and evidentiary constraints

Reasonableness review is not a general rehearing of the evidence. Nevertheless, the administrative record is important.

A factual conclusion may be unreasonable if it is unsupported by the evidence or if the decision-maker fundamentally misapprehends the material before it.

The court must be attentive to the institutional role of the decision-maker and the nature of the evidence. A specialized tribunal may be better positioned to assess technical or professional evidence. However, a decision-maker cannot rely on expertise as a substitute for evidence or disregard material facts that are central to the case.

4.8 Mason v. Canada: reasonableness and statutory interpretation

In Mason v. Canada (Citizenship and Immigration), 2023 SCC 21, the Supreme Court applied the Vavilov framework to administrative interpretations of immigration legislation.

The case concerned the interpretation of a statutory provision relating to inadmissibility on security grounds. The Court concluded that the administrative decisions were unreasonable because the interpretation adopted did not properly account for the statutory text, context, and purpose.

Mason demonstrates that reasonableness review can be rigorous. It does not allow a tribunal to adopt any interpretation that appears plausible. The interpretation must be defensible in light of the legal constraints imposed by the legislation.

The case is also important because it confirms that a reviewing court must take statutory interpretation seriously while respecting the administrative decision-maker’s role. Mason v. Canada (Citizenship and Immigration)+1

5. Correctness review: when the court must determine the legally correct answer

Correctness is the second principal standard of review. Unlike reasonableness, it does not permit a range of acceptable administrative answers on the question under review.

When correctness applies, the reviewing court independently determines the correct legal answer. It may consider the administrative decision-maker’s reasoning and may find that reasoning persuasive, but it is not required to defer to the decision-maker’s conclusion.

The distinction is particularly important where the rule of law requires a single authoritative answer or where the legislature has established a statutory appeal structure that calls for appellate review.

Under Vavilov, the presumption of reasonableness is rebutted in defined circumstances.

5.1 Constitutional questions

Correctness applies to constitutional questions because courts have a special institutional responsibility for interpreting and applying the Constitution.

Constitutional questions may include:

• The constitutional validity of legislation.
• The interpretation of constitutional provisions.
• The division of legislative powers between Parliament and provincial legislatures.
• The interpretation and application of Charter rights.
• Questions concerning the constitutional limits of governmental authority.

An administrative tribunal may have jurisdiction to decide constitutional questions arising within its mandate. The fact that a tribunal can consider a constitutional argument does not mean that its interpretation of the Constitution receives the same deference as an ordinary administrative interpretation of its enabling statute.

Where correctness applies, the reviewing court must determine the constitutional answer for itself.

This approach preserves the need for authoritative and consistent constitutional interpretation throughout Canada.

5.2 General questions of law of central importance to the legal system as a whole

Correctness also applies to general questions of law that are of central importance to the legal system as a whole.

These are not simply difficult legal questions or questions that affect many people. The category is narrow. It concerns legal questions whose importance extends beyond the immediate statutory scheme and which require a single, consistent answer across the legal system.

Examples may include questions concerning the scope of solicitor-client privilege or other fundamental legal doctrines that must operate consistently across different administrative settings.

The distinction is between a general legal question that requires system-wide consistency and a question concerning the interpretation of a particular administrative body’s enabling statute.

A tribunal’s interpretation of its own legislation will ordinarily be reviewed for reasonableness, even where the interpretation is important or legally complex. Importance alone does not transform an ordinary statutory interpretation dispute into a correctness question.

5.3 Questions concerning jurisdictional boundaries between administrative bodies

Correctness also applies to questions concerning the jurisdictional boundaries between two or more administrative bodies.

The reason is institutional. Where two administrative bodies claim authority over the same matter, or where the legislation creates overlapping jurisdictions, the legal boundary must be determined consistently.

For example, a dispute may arise about whether a matter falls within the jurisdiction of a labour relations tribunal or another statutory decision-maker. The court must determine the legal allocation of authority rather than allow competing administrative bodies to establish inconsistent jurisdictional boundaries.

This category is distinct from the older, broader notion that every question of an administrative body’s jurisdiction must be reviewed for correctness. Vavilov did not restore a general correctness category for all jurisdictional questions. The relevant exception concerns the boundaries between administrative bodies.

5.4 Statutory appeal mechanisms

The presumption of reasonableness may also be displaced where the legislature has provided a statutory appeal mechanism.

When legislation creates an appeal to a court, the standards applicable to ordinary appeals generally apply. Questions of law are reviewed for correctness, questions of fact for palpable and overriding error, and questions of mixed fact and law for palpable and overriding error unless an extricable legal error is present.

This reflects the legislature’s choice to establish an appellate relationship between the administrative body and the court.

The distinction is important: a court hearing a statutory appeal performs an appellate function, whereas a court conducting judicial review exercises supervisory jurisdiction. The applicable standard cannot be selected without first identifying the legal route through which the matter reaches the court.

5.5 Correctness does not mean that the administrative reasoning is irrelevant

Although correctness requires the court to determine the legal answer independently, the administrative decision-maker’s analysis may still be persuasive.

A reviewing court may agree with the tribunal’s interpretation, adopt its reasoning, or explain why it reaches the same conclusion.

What correctness excludes is the idea that the administrative interpretation must be accepted merely because it falls within a range of reasonable interpretations. The court must reach the answer it considers legally correct.

6. Selecting the standard of review under Vavilov

The Vavilov framework is designed to make the selection of the standard of review more predictable. It begins with a presumption of reasonableness and then asks whether a recognized exception applies.

A court should not begin by attempting to classify the decision-maker’s expertise or by conducting an open-ended inquiry into every contextual factor that might favour deference. The framework gives priority to legislative intent and the rule of law.

6.1 Step one: identify the nature of the proceeding

The court must first determine whether it is reviewing the merits of an administrative decision or addressing a different legal issue.

The Vavilov framework concerns judicial review of the merits. It does not replace the distinct legal principles governing procedural fairness, statutory appeals, constitutional remedies, or other forms of judicial supervision.

For example, a claim that a tribunal denied a party an opportunity to respond raises a procedural fairness question. It is not ordinarily resolved by choosing between reasonableness and correctness in the same manner as a challenge to the tribunal’s interpretation of its enabling statute.

Similarly, where legislation creates a statutory appeal, the appellate standards must be considered rather than automatically applying the judicial review framework.

6.2 Step two: apply the presumption of reasonableness

Where the court is reviewing the merits of an administrative decision, reasonableness is the presumptive standard.

This presumption applies to administrative interpretations of an authority’s enabling statute and related legislation that the decision-maker is responsible for administering.

It also applies to many factual and mixed questions arising within the administrative body’s statutory mandate.

The presumption reflects the legislature’s choice to entrust the decision to an administrative institution.

6.3 Step three: determine whether the presumption is rebutted

The court then examines whether the case falls within a recognized correctness category.

The principal situations are:

1. The legislature has expressly prescribed a different standard.
2. The legislature has established a statutory appeal mechanism, attracting appellate standards.
3. The case raises a constitutional question.
4. The case raises a general question of law of central importance to the legal system as a whole.
5. The case concerns the jurisdictional boundaries between two or more administrative bodies.

If no exception applies, reasonableness remains the applicable standard.

6.4 Step four: conduct the review using the selected standard

Once the standard has been identified, the court must apply it consistently.

Under reasonableness, the court examines the decision’s justification in light of the relevant legal and factual constraints.

Under correctness, the court determines the legally correct answer independently.

The standards should not be blended. A court should not formally announce reasonableness and then conduct a full de novo determination of the issue. Equally, it should not apply correctness where the law requires deference.

6.5 The importance of methodological discipline

The Vavilov framework seeks to avoid unnecessary uncertainty and inconsistent approaches.

Before 2019, standard-of-review disputes could become lengthy preliminary exercises involving the classification of questions, the perceived expertise of decision-makers, and the contextual factors relevant to deference.

The current framework places the presumption of reasonableness at the centre of the analysis and identifies specific exceptions.

This does not eliminate difficult cases. It does, however, provide a more structured method for determining how courts should supervise administrative decisions.

7. Procedural fairness is distinct from substantive reasonableness review

An important distinction in Canadian administrative law is the difference between reviewing the substance of a decision and reviewing the fairness of the process through which it was reached.

Reasonableness and correctness are standards used principally in reviewing the merits of administrative decisions. Procedural fairness is assessed through a different inquiry.

7.1 Procedural fairness and the common law

Administrative decision-makers must comply with the duty of procedural fairness where it applies. The content of the duty depends on the nature of the decision, the statutory scheme, the importance of the decision to the affected person, legitimate expectations, and the procedural choices of the authority.

The Supreme Court’s decision in Baker v. Canada (Minister of Citizenship and Immigration), [1999] 2 SCR 817, remains central to this analysis.

A failure to provide adequate notice, an opportunity to respond, or an impartial decision-maker may render the process unlawful even if the substantive outcome might otherwise have been reasonable.

7.2 The fairness question is not simply whether the outcome was reasonable

A decision-maker may reach a substantively defensible conclusion through an unfair process.

For example, a regulator may have statutory authority to suspend a licence and may have evidence supporting the suspension. However, if it fails to disclose the essential allegations and gives the licence-holder no meaningful opportunity to respond where fairness requires one, the decision may be set aside for procedural unfairness.

The reviewing court does not need to conclude that the substantive outcome was unreasonable in order to find a breach of procedural fairness.

7.3 No universal requirement for a formal hearing

Procedural fairness does not mean that every administrative decision must involve an oral hearing, cross-examination, formal evidence rules, or a judicial-style judgment.

The process required depends on context. A written submission process may be adequate for many administrative decisions. An oral hearing may be necessary where credibility is central or where the statutory scheme and the interests affected require a more extensive procedure.

The legal question is whether the affected person received the process required by law, not whether the administrative authority replicated the procedures of a court.

7.4 The relationship between fairness and reasons

Reasons can contribute to procedural fairness and administrative accountability. They allow affected persons to understand why a decision was made and help courts determine whether the decision-maker properly considered the relevant issues.

However, the legal obligation to provide reasons is context-dependent. It may arise from legislation, the common-law duty of fairness, or the requirements of reasonableness review under Vavilov.

The distinction between these sources should be maintained. A failure to provide reasons may raise a fairness issue, a substantive justification issue, or both, depending on the circumstances.

8. The application of reasonableness review to different types of administrative decisions

The Vavilov framework applies across a wide range of administrative fields. The statutory context differs, but the central method remains the same: determine whether the decision is justified in light of the legal and factual constraints governing the decision-maker.

8.1 Immigration and citizenship decisions

Immigration and citizenship decisions frequently involve statutory interpretation, factual assessment, credibility, and the application of complex legal criteria.

A decision-maker may determine whether an applicant meets the requirements for a visa, permanent residence, citizenship, admissibility, or refugee protection.

Under Vavilov, reasonableness is generally the presumptive standard for reviewing the merits of these decisions, unless a recognized exception or statutory appeal framework applies.

The reviewing court considers the relevant provisions of the Immigration and Refugee Protection Act, the Citizenship Act, and other applicable legislation, together with the evidence and submissions before the decision-maker.

Mason illustrates that an immigration tribunal’s interpretation must be justified by the statutory text, context, and purpose. A tribunal cannot rely on a broad or abstract understanding of public safety or national security to expand statutory grounds beyond what the legislation permits. Mason v. Canada (Citizenship and Immigration)+1

8.2 Professional discipline

Professional regulatory bodies may investigate complaints and impose disciplinary measures on lawyers, physicians, engineers, accountants, and other regulated professionals.

Judicial review may examine whether the regulator interpreted its statutory mandate reasonably, followed a fair process, considered relevant evidence, and imposed a decision within the limits of its authority.

The reviewing court will generally respect the regulator’s specialized role, but professional expertise does not excuse legal error or procedural unfairness.

Where a disciplinary decision affects freedom of expression or another Charter interest, the constitutional framework may also be relevant.

8.3 Labour relations and employment decisions

Labour relations tribunals interpret legislation governing collective bargaining, unfair labour practices, certification, and workplace disputes.

Their decisions may involve specialized statutory concepts and complex factual records. Reasonableness review ordinarily respects the tribunal’s assigned role, while requiring the tribunal to justify its interpretation and findings in light of the legislation and evidence.

A statutory appeal may nevertheless change the applicable standard where the legislature has expressly created an appellate route.

8.4 Environmental and regulatory decisions

Environmental regulators may issue permits, impose conditions, conduct enforcement proceedings, and impose administrative penalties.

A reviewing court may consider whether the regulator properly interpreted the enabling statute, relied on relevant scientific and technical evidence, considered mandatory statutory factors, and justified the decision.

The court should not substitute its own scientific or policy preference for a lawful administrative determination. However, a decision that disregards central evidence or fails to address a statutory requirement may be unreasonable.

8.5 Municipal and land-use decisions

Municipal bodies make decisions concerning zoning, development permits, building approvals, local licensing, and land-use planning.

These decisions often involve statutory powers, policy considerations, technical evidence, and public participation.

Judicial review may examine whether the municipality acted within its statutory authority, followed required procedures, considered the relevant planning framework, and reached a decision that can be justified under the applicable legal constraints.

The court’s role is not to redesign the municipality’s planning policy. It is to ensure that the decision is lawful.

8.6 Public benefits and administrative entitlements

Government authorities administer programs involving pensions, social assistance, disability benefits, employment insurance, and other public entitlements.

A refusal or termination of benefits may have serious consequences for an individual. The decision-maker must apply the governing legislation reasonably and follow any applicable procedural requirements.

The significance of the decision may influence the level of explanation and procedural protection required, although it does not automatically change the standard of review.

9. Judicial review of federal administrative decisions

The federal judicial review framework is principally governed by the Federal Courts Act and the jurisdiction of the Federal Court and Federal Court of Appeal.

9.1 Section 18 of the Federal Courts Act

Section 18(1) of the Federal Courts Act gives the Federal Court exclusive original jurisdiction, subject to section 28, to grant specified public-law remedies against federal boards, commissions, and other tribunals.

These remedies include orders in the nature of certiorari, prohibition, mandamus, and quo warranto, as well as injunctions and declaratory relief.

The provision is central to federal judicial review because it allocates supervisory jurisdiction over many federal administrative decision-makers to the Federal Court. lois.justice.gc.ca+1

9.2 Section 18.1: applications and grounds of review

Section 18.1 establishes the application procedure and identifies grounds upon which relief may be granted.

An application may be made by the Attorney General of Canada or by a person directly affected by the matter.

For decisions or orders of federal boards, commissions, and tribunals, the ordinary statutory time limit is 30 days from the date the decision or order was first communicated, although a Federal Court judge may extend the period.

The provision also identifies grounds for intervention, including:

• Acting without jurisdiction or beyond jurisdiction.
• Refusing to exercise jurisdiction.
• Failing to observe a principle of natural justice or procedural fairness.
• Making an error of law.
• Making a decision based on an erroneous finding of fact in the circumstances specified by the statute.
• Acting in a manner contrary to law.
• Acting through an improper exercise of discretion.

The exact application of these grounds must be read alongside the modern standards-of-review framework. laws-lois.justice.gc.ca+1

9.3 Section 28 and the Federal Court of Appeal

Section 28 assigns the Federal Court of Appeal jurisdiction to review certain federal boards, commissions, and tribunals directly.

This means that not every federal administrative decision is initially reviewed by the Federal Court. The correct court must be identified by examining the Federal Courts Act and the legislation governing the particular tribunal.

The jurisdictional allocation is important because filing an application in the wrong court may create procedural difficulties or result in dismissal.

9.4 Federal administrative decisions outside the Federal Courts Act framework

Some federal administrative decisions may be subject to specific statutory appeal or review provisions, and not every decision involving the federal government necessarily falls within the same procedural route.

The legal status of the decision-maker, the nature of the decision, and the applicable statute must be examined before selecting the forum.

A public authority’s federal character alone is not sufficient to determine the appropriate court or remedy.

10. Remedies following judicial review

The remedy granted after judicial review depends on the nature of the legal defect, the governing legislation, and the court’s jurisdiction.

The usual objective is to correct the unlawful exercise of public power while respecting the administrative function assigned to the decision-maker.

10.1 Quashing or setting aside a decision

Where a decision is unlawful or unreasonable, the court may quash or set it aside.

The matter is commonly returned to the administrative authority for reconsideration in accordance with the court’s reasons.

The authority may reach the same result or a different one, provided that the new decision complies with the legal requirements identified by the court.

10.2 Remitting the matter for reconsideration

Remittal is generally the ordinary remedy when an administrative decision is set aside.

The court may provide directions concerning the legal framework to be applied, the procedural requirements to be followed, or the issues that must be reconsidered.

However, the court should not normally dictate the precise outcome where the statute entrusts the decision to the administrative body.

10.3 Substitution of the court’s own decision

In exceptional circumstances, a court may decline to remit the matter and instead provide a final determination or substitute its own conclusion where the law and circumstances permit.

In Vavilov, the Supreme Court explained that remittal is generally appropriate but may not be useful where the outcome is inevitable or where remitting the matter would serve no practical purpose.

The remedy remains exceptional because courts must respect the legislature’s choice to assign the original decision-making function to an administrative authority. canlii.org+1

10.4 Mandamus and other public-law remedies

Mandamus may require an authority to perform a legal duty that it has unlawfully failed or refused to perform. It does not ordinarily compel the authority to exercise discretion in a particular way where the statute leaves a range of lawful choices.

Prohibition may prevent an administrative body from continuing proceedings outside its jurisdiction.

Declaratory relief may clarify the legal position or identify the limits of an authority’s powers.

Injunctions may restrain unlawful conduct where the legal requirements for injunctive relief are satisfied.

The remedy must correspond to the nature of the legal wrong. Judicial review is not designed to provide an automatic award of damages for every unlawful administrative decision. A claim for damages requires an independent legal basis and must satisfy the applicable requirements.

11. Practical examples of standards of review

The following examples illustrate how the distinction between reasonableness and correctness may operate.

Example 1: A tribunal interprets its own enabling statute

A professional regulator interprets a provision of its enabling legislation concerning the conditions for issuing a licence.

An applicant argues that the regulator has adopted an interpretation that is inconsistent with the statutory text and purpose.

The presumptive standard is reasonableness. The court examines whether the regulator’s interpretation is justified in light of the wording, context, and purpose of the legislation.

The court does not automatically replace the regulator’s interpretation with its preferred answer. However, if the interpretation cannot be justified by the statute, the decision may be set aside.

Example 2: A tribunal addresses a constitutional question

A regulatory tribunal determines whether a statutory restriction violates freedom of expression under the Charter.

The case raises a constitutional question. Correctness applies to the constitutional issue.

The reviewing court independently determines the relevant constitutional question, rather than accepting the tribunal’s answer merely because it is reasonable.

Example 3: A statutory appeal is limited to questions of law

A provincial statute permits an appeal from an administrative tribunal to the Superior Court on questions of law only.

A claimant believes that the tribunal made both a legal error and an unreasonable factual assessment.

The statutory appeal allows the legal issue to be addressed through the appellate process. Judicial review may remain available for issues outside the limited appeal, depending on the statutory scheme.

The Supreme Court’s decision in Yatar confirms that a limited right of appeal does not automatically eliminate judicial review of questions that the appeal mechanism does not cover.

Example 4: An administrative authority ignores central evidence

An environmental regulator refuses a permit after finding that the proposed activity would create unacceptable environmental risks.

The applicant argues that the regulator ignored a major technical report that directly addressed the alleged risks.

The reviewing court applies reasonableness unless an exception applies. It examines the decision and the record to determine whether the regulator adequately engaged with the central evidence.

If the authority fundamentally misapprehended the evidence or failed to address a material issue, the decision may be unreasonable.

Example 5: Two tribunals claim jurisdiction over the same dispute

A dispute arises between two administrative bodies about which tribunal has authority to decide a particular statutory matter.

Because the issue concerns the jurisdictional boundary between administrative bodies, correctness applies.

The court independently determines the legal allocation of jurisdiction.

Example 6: An authority makes a decision without procedural fairness

A licensing authority suspends a licence without giving the holder notice of the allegations or an opportunity to respond, although the duty of fairness requires such an opportunity.

The principal issue is procedural fairness, not simply whether the decision was reasonable.

The court examines the process required by law and may set aside the decision if the authority failed to provide it.

Example 7: An administrative decision is unreasonable but the result is legally inevitable

A tribunal gives inadequate reasons for a decision, but the record and governing legislation leave only one lawful outcome.

The court may consider whether remitting the matter would serve any useful purpose. In exceptional circumstances, it may decline to send the matter back and grant an appropriate final remedy.

The general rule nevertheless remains that administrative decisions should ordinarily be returned to the decision-maker for reconsideration.

12. The practical importance of judicial review for individuals, businesses, and public authorities

Judicial review is important not only as a constitutional doctrine but also as a practical safeguard in everyday dealings with government.

For individuals, it provides a means of challenging decisions affecting immigration status, citizenship, public benefits, professional rights, licensing, and other legal interests.

For businesses, judicial review may be relevant to regulatory approvals, environmental permits, competition matters, municipal decisions, procurement, professional regulation, and administrative penalties.

For public authorities, the standards of review establish expectations for lawful decision-making. They encourage officials to identify the statutory basis of their powers, engage with relevant evidence, address important submissions, and provide reasons that explain the outcome.

The Vavilov framework has particular practical significance because it emphasizes justification. A decision-maker should not assume that a conclusion is lawful simply because the statute gives it discretion. It must be able to explain how the decision follows from the applicable legal and factual framework.

This does not mean that every administrative decision requires a lengthy legal opinion. The level of explanation should be proportionate to the nature of the decision, the statutory context, and the issues raised. Nevertheless, decisions with significant consequences or complex legal questions generally require careful reasoning.

Judicial review also contributes to consistency in public administration. Court decisions clarify statutory interpretation, identify the limits of delegated authority, and provide guidance for future administrative decisions. The doctrine of precedent ensures that authoritative judicial interpretations can guide administrative bodies and reviewing courts across the country.

13. The relationship between judicial review and administrative independence

Judicial review must preserve a balance between legal accountability and administrative independence.

Administrative tribunals are often created precisely because legislatures consider specialized decision-making preferable to ordinary court proceedings. If reviewing courts were free to replace every administrative decision with their own preferred result, the statutory delegation of authority would lose much of its practical meaning.

The reasonableness standard therefore recognizes that administrative decision-makers may reach different but legally acceptable conclusions.

However, administrative independence is not immunity from law. An authority cannot invoke expertise to avoid scrutiny of an unreasonable statutory interpretation, a serious logical defect, a failure to consider relevant evidence, or an unlawful exercise of discretion.

The Vavilov framework expresses this balance through the presumption of reasonableness and the requirement of meaningful justification.

Courts must respect the decision-maker’s statutory role, but the decision-maker must demonstrate that its decision can be justified under the law.

This relationship is particularly important in areas where administrative authorities exercise broad powers over individuals and organizations. Judicial review ensures that specialized administration remains compatible with constitutional government.

Key Takeaways

1. Judicial review is a central mechanism for ensuring that Canadian administrative authorities exercise public powers lawfully.

2. Its constitutional foundations include the rule of law, constitutional supremacy, and the supervisory jurisdiction of superior courts.

3. Judicial review is distinct from a statutory appeal. An appeal permits reconsideration within the scope established by legislation, whereas judicial review primarily examines the legality of administrative action.

4. The applicable procedure depends on the enabling statute, the nature of the decision, the identity of the decision-maker, and the court’s jurisdiction.

5. Dunsmuir v. New Brunswick, 2008 SCC 9, established a simplified framework based principally on reasonableness and correctness.

6. Canada (Minister of Citizenship and Immigration) v. Vavilov, 2019 SCC 65, substantially reformulated the standards-of-review framework.

7. Reasonableness is the presumptive standard when a court reviews the merits of an administrative decision.

8. Reasonableness requires an internally coherent decision that is justified in light of the relevant legal and factual constraints.

9. A reviewing court applying reasonableness must not simply substitute its preferred outcome for that of the administrative decision-maker.

10. The statutory text, purpose, context, relevant legal principles, evidentiary record, and important submissions may all constrain an administrative decision.

11. Where reasons are required, they are the primary starting point for reasonableness review.

12. A decision may be unreasonable where it contains fundamental logical contradictions, disregards a central statutory requirement, or fails to address a material issue.

13. Correctness applies in defined circumstances where the law requires an authoritative legal answer.

14. These circumstances include constitutional questions, general questions of law of central importance to the legal system as a whole, and questions concerning jurisdictional boundaries between administrative bodies.

15. A statutory appeal mechanism may displace the presumption of reasonableness and attract ordinary appellate standards.

16. The existence of a limited statutory appeal does not necessarily eliminate judicial review of matters outside the appeal’s scope.

17. Yatar v. TD Insurance Meloche Monnex, 2024 SCC 8, confirms that judicial review may remain available for questions of fact or mixed fact and law where a statutory appeal is restricted to questions of law.

18. Procedural fairness is a separate inquiry from substantive reasonableness review.

19. A decision may be substantively defensible but still unlawful because the authority failed to follow a fair process.

20. Baker v. Canada, [1999] 2 SCR 817, remains an important authority on the content of procedural fairness.

21. Federal judicial review is governed principally by sections 18 and 18.1 of the Federal Courts Act, subject to the statutory jurisdiction of the Federal Court of Appeal and other applicable provisions.

22. Section 18.1 establishes grounds of review and generally provides a 30-day period for applications concerning decisions or orders of federal boards, commissions, and tribunals, subject to judicial extension.

23. Provincial and territorial judicial review procedures are governed by the applicable local legislation, court rules, and common-law principles.

24. The usual remedy for an unlawful administrative decision is to set it aside and return the matter to the decision-maker for reconsideration.

25. The central objective of judicial review is to reconcile administrative effectiveness and institutional expertise with constitutional accountability and the rule of law.

Frequently Asked Questions

1. What is judicial review in Canada?

Judicial review is a court process through which the legality of an administrative decision or action is examined. It allows courts to determine whether a public authority acted within its legal powers, followed the required procedures, and complied with the applicable standards of administrative law.

2. What are the two main standards of review in Canadian administrative law?

The two principal standards are reasonableness and correctness. Reasonableness is the presumptive standard for reviewing the merits of administrative decisions. Correctness applies in defined circumstances where the law requires the court to determine the legally correct answer independently.

3. What did the Supreme Court decide in Vavilov?

In Canada (Minister of Citizenship and Immigration) v. Vavilov, 2019 SCC 65, the Supreme Court established reasonableness as the presumptive standard of review and identified the principal circumstances in which correctness applies. It also provided detailed guidance on how courts should assess the justification offered by administrative decision-makers.

4. What does reasonableness mean in judicial review?

Reasonableness requires an administrative decision to be internally coherent and justified in light of the relevant legal and factual constraints. A decision may be reasonable even if the reviewing judge would have reached a different conclusion.

5. Does reasonableness mean that courts must accept every administrative decision?

No. Reasonableness is a meaningful form of judicial supervision. A decision may be set aside if its reasoning contains fundamental logical defects, fails to address important statutory requirements, disregards central evidence, or cannot be justified in light of the governing law.

6. What is correctness review?

Correctness review requires a court to determine the legally correct answer independently. The court may consider the administrative decision-maker’s reasoning, but it is not required to defer to the conclusion.

7. When does the correctness standard apply?

Under Vavilov, correctness generally applies to constitutional questions, general questions of law of central importance to the legal system as a whole, and questions concerning the jurisdictional boundaries between administrative bodies. It also applies where the legislature has established a statutory appeal mechanism attracting appellate standards.

8. Does an administrative tribunal’s expertise determine the standard of review?

Not by itself. Under Vavilov, reasonableness is the presumptive standard because of the legislature’s decision to delegate authority. Expertise may be relevant to understanding the statutory and institutional context, but it does not independently determine the standard of review.

9. What is the difference between judicial review and an appeal?

An appeal allows a court or another designated body to reconsider a decision within the scope provided by legislation. Judicial review examines whether the administrative authority acted lawfully. The procedures, grounds, standards, and remedies may differ.

10. Can a decision be challenged through judicial review if a statutory appeal exists?

Potentially, yes. The answer depends on the statutory scheme and the issues being challenged. In Yatar v. TD Insurance Meloche Monnex, 2024 SCC 8, the Supreme Court confirmed that a limited statutory appeal on questions of law did not automatically eliminate judicial review of questions of fact or mixed fact and law.

11. What is the significance of Yatar v. TD Insurance Meloche Monnex?

The decision clarified the relationship between statutory appeals and judicial review. It confirmed that a limited right of appeal does not necessarily prevent a court from exercising its supervisory jurisdiction over issues outside the scope of the appeal.

12. What is the relationship between Baker and Vavilov?

The cases address different but related aspects of administrative law. Baker provides an important framework for determining the content of procedural fairness. Vavilov establishes the modern framework for reviewing the substantive merits of administrative decisions.

13. Does judicial review examine procedural fairness?

Yes. Courts may examine whether an administrative authority complied with the duty of procedural fairness, including requirements relating to notice, disclosure, the opportunity to respond, impartiality, and reasons where applicable. This is a distinct inquiry from the reasonableness or correctness review of the merits.

14. Which court reviews federal administrative decisions?

The Federal Court has exclusive original jurisdiction under section 18 of the Federal Courts Act over many applications for judicial review of federal boards, commissions, and tribunals. Section 28 assigns jurisdiction over specified federal bodies to the Federal Court of Appeal. The correct court depends on the relevant statutory provisions.

15. What is the usual time limit for federal judicial review?

Under section 18.1(2) of the Federal Courts Act, an application concerning a decision or order of a federal board, commission, or tribunal must generally be made within 30 days after the decision or order was first communicated. A Federal Court judge may extend the period.

16. Can a provincial court review a federal administrative decision?

The appropriate court depends on the statutory allocation of jurisdiction and the legal nature of the decision. Many federal administrative decisions fall within the jurisdiction of the Federal Court or Federal Court of Appeal. Provincial superior courts do not automatically have jurisdiction to review every federal administrative decision.

17. What happens when a court finds an administrative decision unreasonable?

The usual remedy is to set aside the decision and return the matter to the administrative decision-maker for reconsideration. The authority must then make a new decision in accordance with the applicable legal requirements.

18. Can a court replace an administrative decision with its own decision?

Sometimes, but this is exceptional. Courts ordinarily remit matters to the administrative decision-maker because the legislature entrusted the original decision-making function to that institution. Substitution may be appropriate where remittal would serve no useful purpose or the lawful outcome is effectively determined.

19. Can an administrative decision be challenged for an error of fact?

Yes, but the applicable route and standard depend on the statutory framework. Under reasonableness review, a factual conclusion may be unreasonable if it is unsupported by the record or based on a fundamental misapprehension of the evidence. A statutory appeal may attract a different appellate standard.

20. Why are standards of review important in Canadian administrative law?

Standards of review define the relationship between administrative decision-makers and courts. They determine the degree of judicial deference, preserve the institutional responsibilities assigned by legislatures, and ensure that administrative decisions remain consistent with the rule of law.

Principal Legal Sources and Further Reading

The following legislation, judicial decisions, and official resources provide the principal legal foundations for studying judicial review in Canada.

Constitutional and legislative sources

• Constitution Acts, 1867 to 1982
• Canadian Charter of Rights and Freedoms
• Federal Courts Act
• Federal Courts Act, section 18.1 – Application for Judicial Review

Official judicial resources

• Supreme Court of Canada – Judgments
• Supreme Court of Canada – Case in Brief: Vavilov
• Supreme Court of Canada – The Standard of Review
• Federal Court of Canada
• Federal Court of Appeal

Leading Supreme Court of Canada decisions

• Nicholson v. Haldimand-Norfolk Regional Board of Commissioners of Police, [1979] 1 SCR 311.
• Baker v. Canada (Minister of Citizenship and Immigration), [1999] 2 SCR 817.
• Dunsmuir v. New Brunswick, 2008 SCC 9.
• Canada (Citizenship and Immigration) v. Khosa, 2009 SCC 12.
• Alberta (Information and Privacy Commissioner) v. Alberta Teachers’ Association, 2011 SCC 61.
• Canada (Minister of Citizenship and Immigration) v. Vavilov, 2019 SCC 65.
• Bell Canada v. Canada (Attorney General), 2019 SCC 66.
• Mason v. Canada (Citizenship and Immigration), 2023 SCC 21.
• Yatar v. TD Insurance Meloche Monnex, 2024 SCC 8.

Conclusion

Judicial review is an essential component of Canada’s constitutional and administrative legal order. It ensures that the powers delegated to public authorities remain subject to legal control, while recognizing that administrative institutions must have sufficient independence and flexibility to perform the functions assigned to them by legislation.

The distinction between reasonableness and correctness expresses this balance. Reasonableness respects the legislature’s choice to entrust decisions to specialized administrative bodies, allowing more than one legally acceptable outcome where the statutory framework permits it. Correctness preserves the courts’ responsibility to determine authoritative answers in areas where constitutional requirements, system-wide legal consistency, jurisdictional boundaries, or statutory appeal provisions demand independent judicial determination.

The framework established in Vavilov has made the selection and application of standards of review more structured. It has also reinforced the expectation that administrative decision-makers must justify their decisions through reasoning that engages with the governing legislation, the evidence, and the important issues raised by affected parties. Subsequent decisions, including Mason and Yatar, demonstrate how the framework operates in substantive statutory interpretation disputes and in the relationship between judicial review and limited statutory appeals.

Ultimately, judicial review is neither a general appeal on the merits nor a merely formal examination of administrative procedure. It is a constitutional mechanism for ensuring that public authorities remain accountable to law. It preserves administrative discretion without allowing arbitrariness, recognizes institutional expertise without treating it as immunity, and protects the rule of law by requiring that the exercise of public power remain legally justified.