AI mis-frames CPMI-IOSCO d226 effective practices as supervisory or mandatory obligations when the report itself describes them as non-binding examples of how PFMI standards can be met.
Executive Summary
Legal teams inside investment-banking divisions acting as clearing members at central counterparties are increasingly using AI to draft client-clearing disclosure updates referencing CPMI-IOSCO d226, prepare opinion notes on whether the January 2025 publication imposes new pass-through obligations on clearing members, classify each d226 effective practice for the General Counsel's regulatory monitoring log, and validate proposed amendments to client clearing agreements against d226 language. Leading AI assistants tested by the RLB Specialist Panel produced confident, citable answers on the binding force of d226 that the document itself directly contradicts.
This cell collects one hallucination finding on the January 2025 CPMI-IOSCO publication "Streamlining variation margin in centrally cleared markets, examples of effective practices" (d226), organised for Clearing-member Legal working on CPMI-IOSCO VM matters in international and cross-border contexts. Across the finding, the AI subject in this audit produced a confident, citable response on the legal status of the eight effective practices in d226 that the document itself directly contradicts.
The Specialist Panel found that the AI classified each practice as a supervisory expectation or as carrying mandatory overlap with national rules, when the document's own stated purpose paragraph records it as "examples of how standards set out in the CPMI-IOSCO Principles for financial market infrastructures, as supplemented by the relevant guidance, can be met." Every finding in this cell is bound to verbatim regulator-issued source text held as primary substrate by the RLB Specialist Panel.
When this affects Clearing-member Legal work
This pattern surfaces whenever Clearing-member Legal use AI to characterise the binding force of d226 in client-clearing disclosure updates, in-house opinion notes, and clearing-agreement amendment papers. The risk is structural: d226 is a CPMI-IOSCO publication that frames itself as voluntary effective-practice illustration, yet the AI's commitment reads as a supervisory or mandatory classification that a practitioner would paste into a deliverable before verification against the source. The deliverable then carries forward an inverted modality on binding force into downstream work products.
Findings overview
| # | Finding title | Type | Citation ID |
|---|---|---|---|
| 1 | Inverted modality on binding force | Misstated rule | RLB-H-INT-BIS-CPMI-CPMI-IOSCO-VARIATION-MARGIN-CCPs-2025-Q004-Opus47 |
What the AI got wrong
Finding 1: Inverted modality on binding force of d226 effective practices
Citation ID: RLB-H-INT-BIS-CPMI-CPMI-IOSCO-VARIATION-MARGIN-CCPs-2025-Q004-Opus47
In response to a Specialist Panel application-style question asking for a compliance obligations memo classifying each of the eight effective practices in d226 as either (A) MANDATORY REQUIREMENT, (B) SUPERVISORY EXPECTATION, or (C) VOLUNTARY GUIDANCE, the AI subject produced a complete memo that treated every one of the eight effective practices as either a supervisory expectation in its own right or as overlapping with mandatory national rules.
The memo opened with a threshold classification that placed d226 in category (C) but immediately added "a strong gravitational pull into (B) SUPERVISORY EXPECTATION because the underlying PFMIs are the de facto binding standard against which CCPs are supervised," then classified each practice individually under (B), (B) trending (C), (B) with (A) elements, or similar mixed labels.
The document's own stated purpose paragraph, by contrast, records that d226 sets out "examples of how standards set out in the CPMI-IOSCO Principles for financial market infrastructures, as supplemented by the relevant guidance, can be met." The text is illustrative of one way the underlying PFMI standards can be met, and is not a new layer of supervisory expectation or mandatory rule. The AI subject's framing inverts that modality: it converts a voluntary illustration into a baseline supervisory expectation, with each practice acquiring its own binding-force overlay.
The Specialist Panel records this as a misstated-rule finding because the AI's commitment on the legal status of d226 contradicts the document's own characterisation of itself. The full finding analysis, including the verbatim regulator text, the AI subject's complete answer, and the AI's failure mode classification, is at See full finding analysis.
Opinion notes and client clearing agreement amendments that treat d226 practices as supervisory or mandatory obligations create disclosure exposure to clients, drive over-implementation budgets across the clearing-member function, and produce inconsistencies between the firm's d226 position and the national rulebook position it must actually adhere to.
AI's failure mode
| # | Finding title | Type | Citation ID |
|---|---|---|---|
| 1 | Inverted modality on binding force | Misstated rule | RLB-H-INT-BIS-CPMI-CPMI-IOSCO-VARIATION-MARGIN-CCPs-2025-Q004-Opus47 |
Risk impact
| # | Finding title | Type | Citation ID |
|---|---|---|---|
| 1 | Inverted modality on binding force | Misstated rule | RLB-H-INT-BIS-CPMI-CPMI-IOSCO-VARIATION-MARGIN-CCPs-2025-Q004-Opus47 |
What Clearing-member Legal teams should do
- Anchor any d226-linked opinion note in the document's own purpose paragraph before reaching a conclusion on binding force.
- Separate the question of d226's own legal status from the binding force of the underlying PFMI Principles and from any national rulebook that already mandates specific VM practices, and present each layer distinctly in opinion notes.
- Where AI-drafted client-clearing disclosure updates reference d226, require legal review for binding-force phrasing before the disclosure is issued.
- When responding to client questions on whether the clearing member "must" adopt a d226 practice, give the answer in three layers: voluntary at d226 level, binding under PFMI as applied by the home supervisor, and operational under the firm's own clearing rulebook.
- Update the General Counsel's regulatory monitoring log to record d226 as a voluntary CPMI-IOSCO publication, not as a new binding rule, so downstream departments inherit the correct characterisation.
Right of Reply
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Source & Methodology Standards
RegLeg Brief is operated by Verdus Technologies Pte. Ltd. (UEN 201616982R), incorporated in Singapore. The RLB Specialist Panel, with an aggregate of over 60 years of public-policy and industry experience, documents only confirmed hallucination findings, under a methodology that requires a verbatim regulator excerpt for every documented claim. All findings, citation IDs, model outputs, regulator excerpts, and methodology notes are open-access.
Primary source verified: d226 — Streamlining variation margin in centrally cleared markets — examples of effective practices (January 2025). R-folder reference: R6-FINAL_REPORT-00001. BIS portal: bis.org/cpmi.
Citation IDs referenced:
RLB-H-INT-BIS-CPMI-CPMI-IOSCO-VARIATION-MARGIN-CCPs-2025-Q004-Opus47