What information are CCPs expected to publicly disclose about their margin model override framework under the CPMI-IOSCO 2026 consultation, and does the guidance frame this as a requirement or a recommendation?
The model reproduced the correct subject matter, CCP override-framework disclosure, but upgraded the normative weight from the regulator's "should" to "must", converting a recommendation into an obligation. The cited source is a third-party law-firm summary that likely paraphrased the consultation in more decisive language; the model carried that paraphrase through without correcting for the deontic downgrade relative to the primary text. The error is not in the content domain, it is in the model's failure to preserve the modal register of a consultation document, where "should" and "must" are not interchangeable.
This error implicates two subsystems simultaneously: the retrieval ranker's weighting of third-party secondary sources over the regulator's primary text for normative queries, and the model's calibration on deontic precision for consultation-class documents. The training corpus does not appear to carry a strong signal distinguishing 'should' in a consultation from 'must' in a final rule — the model resolved the ambiguity by defaulting to the stronger obligation register, which is the systematically wrong direction for consultation documents.
The Pretextual citation to a law-firm summary rather than the BIS primary text indicates the retrieval pipeline did not prioritise the authoritative source, and the model did not correct for the secondary source's editorial register change.
When a Governance & CoSec team at an internationally active investment bank asks AI tools to specify what CCPs must publicly disclose about their margin model override framework under the 2026 CPMI-IOSCO consultation, the AI produces a detailed three-part enumeration, circumstances warranting overrides, authorised decision-makers, permissible adjustment types, that the consultation does not contain. The consultation states only that CCPs should publicly disclose 'relevant information on their override framework', with the specific content of that disclosure left open for comment.
If this fabricated enumeration is carried forward into a board-level briefing on CCP counterparty governance, a policy update on margin model oversight standards, or a framework for assessing whether CCP disclosures are adequate, the firm has anchored its governance position to a regulatory standard that was never set.
Under CPMI-IOSCO's oversight framework and the jurisdiction-level prudential requirements that implement it, a regulator examining the firm's CCP counterparty-risk governance could find that the firm's assessment criteria are unsupported by the actual regulatory text, creating an enforcement and remediation exposure that is difficult to contain once the fabricated standard has been embedded in formal governance records.
Each finding has a stable Citation ID (RLB-F-… for aggregated case-study findings, RLB-H-… for raw per-model hallucinations) — like a DOI, the ID always resolves to the canonical finding even if URLs change.
RegLeg Specialist Panel (2026). "Finding#1, CCP override framework public disclosure obligations — Investment Banking × Governance Cosec — International / Multilateral." Citation ID: RLB-F-INT-BIS-CPMI-IOSCO-INITIAL-MARGIN-DISCLOSURE-CONSULT-2026-Q005. RegLegBrief AI Hallucination Research, published 2026-06-11. https://reglegbrief.com/regulators/j1/int/BIS-CPMI/CPMI-IOSCO-INITIAL-MARGIN-DISCLOSURE-CONSULT-2026/sectors/investment_banking/governance_cosec/finding/INT-BIS-CPMI-INT-001-CPMI-IOSCO-INITIAL-MARGIN-DISCLOSURE-CONSULT-2026-v1-005/
RegLeg Specialist Panel. (2026). Finding#1, CCP override framework public disclosure obligations [Hallucination finding RLB-F-INT-BIS-CPMI-IOSCO-INITIAL-MARGIN-DISCLOSURE-CONSULT-2026-Q005]. RegLegBrief AI Hallucination Research. https://reglegbrief.com/regulators/j1/int/BIS-CPMI/CPMI-IOSCO-INITIAL-MARGIN-DISCLOSURE-CONSULT-2026/sectors/investment_banking/governance_cosec/finding/INT-BIS-CPMI-INT-001-CPMI-IOSCO-INITIAL-MARGIN-DISCLOSURE-CONSULT-2026-v1-005/
RegLeg Specialist Panel, Finding#1, CCP override framework public disclosure obligations [RLB-F-INT-BIS-CPMI-IOSCO-INITIAL-MARGIN-DISCLOSURE-CONSULT-2026-Q005], RegLegBrief AI Hallucination Research (June 11, 2026), https://reglegbrief.com/regulators/j1/int/BIS-CPMI/CPMI-IOSCO-INITIAL-MARGIN-DISCLOSURE-CONSULT-2026/sectors/investment_banking/governance_cosec/finding/INT-BIS-CPMI-INT-001-CPMI-IOSCO-INITIAL-MARGIN-DISCLOSURE-CONSULT-2026-v1-005/.
@misc{reglegbrief_RLB_F_INT_BIS_CPMI_IOSCO_INITIAL_MARGIN_DISCLOSURE_CONSULT_2026_Q005,
author = {RegLeg Specialist Panel},
title = {Finding#1, CCP override framework public disclosure obligations},
year = {2026},
publisher = {RegLegBrief AI Hallucination Research},
note = {Hallucination finding Citation ID: RLB-F-INT-BIS-CPMI-IOSCO-INITIAL-MARGIN-DISCLOSURE-CONSULT-2026-Q005},
url = {https://reglegbrief.com/regulators/j1/int/BIS-CPMI/CPMI-IOSCO-INITIAL-MARGIN-DISCLOSURE-CONSULT-2026/sectors/investment_banking/governance_cosec/finding/INT-BIS-CPMI-INT-001-CPMI-IOSCO-INITIAL-MARGIN-DISCLOSURE-CONSULT-2026-v1-005/}
}
Every finding on this page compares an AI subject's account of the rule against the regulator's verbatim text from the regulator's own portal. Both are linked. Each delta, its root causes, and impact analysis are documented and published with immutable Citation IDs.