Why Vavilov matters

Canada (Minister of Citizenship and Immigration) v Vavilov (2019 SCC 65) is the most important Canadian administrative-law decision in over a decade. It restates the framework for judicial review, replacing the post-Dunsmuir doctrinal contestation with a single robust framework anchored in legislative intent.

This guide walks through how to apply it.

The framework in one paragraph

Reasonableness is the presumptive standard for review of administrative decisions. Correctness applies in five categories: (1) where the legislature has prescribed it, (2) where there is a statutory right of appeal (in which case appellate-style review under Housen applies), (3) constitutional questions, (4) general questions of law of central importance to the legal system as a whole, and (5) jurisdictional boundaries between two administrative bodies.

Step 1 — Choose the standard

Begin by asking: is there a statutory right of appeal?

Yes → Housen applies. Correctness on questions of law; palpable and overriding error on questions of fact and mixed fact-and-law without an extricable legal question.
No → reasonableness is the presumptive standard. Then check the four remaining correctness categories.

The five correctness categories are exhaustive. Other reasons that might once have justified correctness review (e.g. true questions of vires, discrete fact-finding) no longer do.

Step 2 — Apply reasonableness (where applicable)

Vavilov reframed reasonableness as a single, robust standard focused on whether the decision is justified, transparent, and intelligible. The reviewing court examines:

The actual reasoning chain. Are the conclusions supported by a logical and rational analysis?
The factual and legal constraints on the decision-maker. Are the conclusions defensible in light of the facts and the law?
The quality of the explanation, including responsiveness to the central submissions.

The reviewing court does not engage in de novo analysis or hypothesise reasons that the decision-maker did not give. The actual reasons are central.

What Vavilov requires of decision-makers

Vavilov dramatically strengthens the reasoned-decision requirement. Where a decision-maker is statutorily required to give reasons (and many are), those reasons must:

Demonstrate that the decision-maker engaged with the submissions;
Address the central issues meaningfully;
Be internally coherent.

A decision that fails to address a central submission, or that contains an internally inconsistent line of reasoning, is unreasonable.

What Vavilov requires of reviewing courts

Reviewing courts must:

Begin from the actual reasons given.
Avoid substituting their own analysis.
Avoid hypothesising reasons the decision-maker did not give.
Find the decision unreasonable only where the deficiency is sufficiently central or significant to render the decision unreasonable.

A reviewing court that strikes down on a peripheral point misapplies Vavilov.

Procedural fairness sits separately

Vavilov did not change the procedural-fairness analysis. Baker v Canada (1999) governs. Fairness is a spectrum; content varies with five factors:

Nature of the decision being made and the process followed.
Nature of the statutory scheme.
Importance of the decision to the affected persons.
Legitimate expectations.
Choices of procedure made by the agency.

The standard for procedural fairness is correctness — was the process fair? — although the analysis is highly contextual.

Constitutional questions

Charter and division-of-powers questions attract correctness review. Doré v Barreau du Québec (2012, not in our beta library) governs the application of Charter values in administrative discretion: the decision-maker must proportionately balance Charter values against the statutory objectives. The standard of review of that balancing is reasonableness (post-Vavilov, where the matter is not a Charter "constitutional question" in the strict sense).

What Vavilov did not change

The fundamental rule-of-law foundation of administrative law (Roncarelli).
The duty to give reasons where the matter is important to the affected (Baker).
The role of the reviewing court as one of supervision, not substitution.

Practical drafting

For lawyers seeking judicial review:

Identify the standard early. Argue the correctness category if available; otherwise plead reasonableness.
For reasonableness, focus on the actual reasoning. Quote specific deficiencies — internal contradiction, failure to address central submissions, departure from binding precedent without explanation.
Avoid asking the court to substitute its judgment. Vavilov forbids it; arguments framed that way are weaker.

For decision-makers and their counsel:

Reasons matter more than ever. A short, internally coherent explanation that addresses the central submissions will usually survive review.
Departure from precedent or established interpretation must be addressed in the reasons.
The reasoning chain should be explicit: the conclusion should track from the law and facts.

Cases to know

Vavilov (2019) — restated framework.
Dunsmuir (2008) — predecessor framework.
Baker (1999) — procedural fairness.
Roncarelli v Duplessis (1959) — rule of law foundation.
Society of Composers v Entertainment Software Association (2022) — refines the Vavilov framework on concurrent jurisdiction.
Mason v Canada (2023) — application of Vavilov in immigration context.