Form 2.1B and the Reverse Onus: Colourability and the Limits of Delegated Authority

Rule 2.1 of the Rules of Civil Procedure is framed as a summary process for dismissing proceedings that appear on their face to be frivolous, vexatious, or otherwise an abuse of the process of the court. The rule itself does not use the words “reverse onus.” The operational mechanism, however, produces a clear shift in the burden of justification once Form 2.1B is issued.

Under the ordinary adversarial model, the party seeking dismissal ordinarily bears the burden of establishing that the proceeding should be struck. Rule 2.1 alters that procedural arrangement by allowing summary screening without an ordinary dismissal motion. The issuance of Form 2.1B triggers an automatic stay of the proceeding. Although the court must first determine that summary disposition may be appropriate, the automatic stay takes effect before any final determination of abuse. The plaintiff must therefore justify continuation while the ordinary procedural rights associated with the proceeding remain suspended. This stay operates not merely as an administrative scheduling tool, but as a procedural presumption against the claim. By suspending the plaintiff's ordinary rights prior to a hearing, the mechanism functionally presumes the validity of the dismissal request. The plaintiff is then required to show why the proceeding should not be dismissed. If the plaintiff files no response, dismissal is the practical consequence. The starting point is a judicial restriction on the action; the litigant must then justify the continuation of the proceeding.

Canadian administrative law does not stop at the formal wording of a provision. The Supreme Court has long examined the practical operation of subordinate legislation and administrative schemes. A delegated body cannot achieve indirectly what it lacks authority to do directly. This is the doctrine of colourability (R. v. Morgentaler, [1993] 3 S.C.R. 463). Where a facially neutral administrative instrument is used to produce a result that falls outside the parent statute’s grant of authority, the instrument is vulnerable.

The distinction between procedural regulation and substantive legislative authority is central to the validity of this framework. The authority to regulate judicial practice and procedure does not include the power to reallocate the ultimate legal burden of persuasion. As recognized in Snell v. Farrell, [1990] 2 SCR 311, the obligation to produce evidence or respond to a procedural demand is not necessarily equivalent to bearing the ultimate legal burden.

However, the automatic stay introduced by O. Reg. 322/24 under Rule 2.1.01(7) fundamentally alters this dynamic. The stay restricts the plaintiff's capacity to advance the claim, indicating that a procedural consequence has been applied before the plaintiff has provided submissions. The combined operation of Form 2.1B, the automatic stay, and the prescribed response requirements does more than impose an obligation to respond. It places the practical burden of justifying continuation on the plaintiff, creating a functional reverse-onus framework.

The Rules of Civil Procedure are subordinate legislation, made by the Civil Rules Committee under section 66 of the Courts of Justice Act. Section 66(1) authorizes rules governing practice and procedure. Section 66(2) enumerates limited areas in which the rules may affect substantive matters. Neither provision authorizes the Committee to reverse the ordinary common-law allocation of the burden of proof. Section 66(3) further provides that the rules cannot conflict with an Act of the Legislature.

The Courts of Justice Act itself demonstrates how the legislature proceeds when it intends to create a burden-shifting summary dismissal regime. Section 137.1 (the anti-SLAPP provision) sets out an explicit statutory scheme. The moving party must first meet a threshold; only then does the burden shift. The Supreme Court confirmed the structure of that scheme in 1704604 Ontario Ltd. v. Pointes Protection Association, 2020 SCC 22. The legislature knows how to authorize a reverse onus and where to place it—in primary legislation, with defined preconditions. The Legislature also expressly imposed a restriction on further steps under section 137.1(5) and restricted amendments to pleadings under section 137.1(6). These are precisely the types of procedural restrictions now imposed through Rule 2.1, but in section 137.1 they derive directly from the Legislative Assembly.

In Katz Group Canada Inc. v. Ontario (Health and Long-Term Care), 2013 SCC 64, the Supreme Court addressed the statutory limits governing subordinate legislation. In Auer v. Auer, 2024 SCC 36, the Court clarified that delegated legislation must remain reasonably within the authority conferred by the legislature, having regard to the statutory scheme, applicable legal constraints, and principles of statutory interpretation. The question is therefore whether the practical operation of Rule 2.1 remains within section 66's delegated mandate.

A court’s inherent jurisdiction to dismiss abusive proceedings does not independently establish the Civil Rules Committee’s authority to construct this particular regime. Nor can administrative convenience or repeated judicial application supply a statutory power that was never delegated. If the province requires a summary screening tool to manage judicial resources by shifting the burden of proof, the constitutional and statutory architecture of Ontario demands that this power be exercised openly by the Legislative Assembly.

Returning this mechanism to the Legislature is not merely a procedural correction; it ensures that any such reverse-onus framework is subjected to proper public accountability and direct constitutional scrutiny, rather than being shielded as a mere rule of practice.

Ultimately, the jurisdictional defect can be distilled to a single question: Where has the Legislative Assembly authorized the Civil Rules Committee to create this particular reverse-onus mechanism?

Section 66(2)(d) does not answer the question raised here. Authority to provide for the disposition of proceedings without a hearing, and to prescribe the effect of that disposition, is not necessarily authority to reallocate the ultimate legal burden of persuasion. The power to determine how a proceeding may be disposed of must be distinguished from the power to determine who bears the burden of proving whether it should continue.

If section 66 does not confer that authority, Rule 2.1 cannot acquire it through implication. The issue is not whether courts may prevent abuse of process, but whether the delegated rulemaker exceeded the legislative authority governing how that power may be exercised.

Access the consolidated public records, dockets, and procedural analyses associated with this matter below.

Supreme Court of Canada (SCC)

• Formatted SCC Docket 42381
• Bulletin of Proceedings (Official)
• Official SCC Docket 42381

1. Case Overviews & Timelines

• Case Overview: Supreme Court of Canada Docket 42381, 2026 ONCA 246 and 2.1B (2025 ONCA 90)
• History of the Jurisdictional Defect in Chowdhury (2025 ONCA 90): Rule 2.1 Applied Twice
• Wrong-Forum and “Abuse of Process”: Amstar (2025 ONCA 493) and Bernard Property (2019 ONCA 830)
• “Or” vs. “Or Otherwise”: Scaduto (2015 ONCA 733), Raji (2015 ONSC 801), and the Language of Rule 2.1.01

2. Constitutional Limits & Delegated Authority

• Jurisprudence of the Administrative Reverse Onus: Rule 2.1 vs. Established Precedent
• Rule 2.1, Section 137.1 of the Courts of Justice Act, and the Administrative Reverse Onus
• Rule 2.1 and the Automatic Stay: A Procedural Tension with Rule 2.01
• O. Reg. 322/24: Form 2.1A and the 2024 Amendments to Rule 2.1
• The Reverse Onus of Rule 2.1: The Practical Effect of the Automatic Stay in O. Reg. 322/24

4. Jurisdiction, Forum & Procedural Mechanics

• Rule 2.1.01 and Jurisdiction: Simpson (2016 ONCA 806), Collins (2017 ONCA 317) vs. Chowdhury
• Jurisdiction and the Initiation of Rule 2.1 Dismissals
• Rule 21.01 vs. Rule 2.1.01: "A Judge" vs. "The Court"
• Case Conference and Management: Scheduling as Adjudication (2.1B)
• Jurisdictional Contrast: Alberta, Quebec, and British Columbia
• Amstar (2025 ONCA 493) and Ingarra (2026 ONCA 139): When Jurisdiction Becomes "Frivolous"

5. Family Rule 1.4 & Rule 2.1

• Rule 1.4, Rule 2.1 and the Rules of Procedure: Can Ontario's Rules Committees Override the Common Law?
• O. Reg. 310/26 and Family Rule 1.4: The Shifting Framework of Summary Dismissals

Statutory References

• Appendix: Rule 2.1 of the Rules of Civil Procedure — Statutory Reference via Ontario e-Laws