AI Hallucination ResearchAudiencesPractitionersUnited StatesAccountants (CA/PA)Detail › Finding
Practitioners — Accountants (CA/PA) · updated 2026-06-04
Share / Print Twitter LinkedIn Email

Finding#3 — SIDR and risk disclosure compliance deadline

RLB Citation ID: RLB-F-US-CFTC-FCM-DCO-CUSTOMER-FUNDS-INVESTMENTS-REG-1-25-2024-Q004
AI's failure:Exposed Fabrication Risk for Accountants (CA/PA):Regulatory enforcement
What the RLB Specialist Panel found
Question (paraphrased to protect IP)

What are the key compliance dates under the 2024 Regulation 1.25 amendments — specifically the general effective date for conforming investment policies and the separate deadline for updating Segregation Investment Detail Reports and customer risk disclosure statements?

RLB's analysis

The rule specifies March 31 2025 as a fixed calendar date for the SIDR and risk disclosure update deadline. The model replaced this with a relative range — "roughly six months to a year after the effective date" — which is the kind of phrasing that appears in early regulatory commentary or implementation-guidance estimates before a final compliance date is set. The model appears to have drawn on pre-final-rule secondary discussion rather than the rule's published compliance calendar, producing a response that is actively misleading for any firm calculating its deadline.

AI Head's analysis — what weakness in the AI model caused this

This finding implicates calibration on compliance-deadline specificity. The rule publishes a fixed calendar date (March 31 2025) for the SIDR update deadline; the model substituted a relative range drawn from pre-final-rule commentary. The retrieval pipeline either did not surface the compliance calendar from the final rule text, or the model discounted it in favour of a higher-frequency secondary framing. Post-training calibration should penalise relative-range answers on compliance deadline questions where a fixed date is retrievable from primary source.

Impact for Accountants (CA/PA) in the United States advising on the Amendments to Regulation 1.25 — Permissible Investments of Customer Funds by Futures Commission Merchants and Derivatives Clearing Organizations

An accountant coordinating a client's compliance calendar or reviewing SIDR update adequacy who accepts the AI's six-to-twelve month estimate for the SIDR compliance deadline will advise a window that does not exist — the actual deadline was March 31, 2025, approximately 38 days after the February 21, 2025 general effective date. A client that missed that deadline based on a compliance calendar built on incorrect AI output is exposed to a CFTC enforcement finding, and the accountant's advice record will show the wrong date was communicated.

References — raw findings (per AI model)
This finding also affects
← Previous finding Finding#2 — Dollar-weighted average maturity — excluded instrument types
Cite this finding

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.

RLB Citation ID: RLB-F-US-CFTC-FCM-DCO-CUSTOMER-FUNDS-INVESTMENTS-REG-1-25-2024-Q004
Plain text Download
RegLeg Specialist Panel (2026). "Finding#3 — SIDR and risk disclosure compliance deadline — Practitioners — Accountants (CA/PA)." Citation ID: RLB-F-US-CFTC-FCM-DCO-CUSTOMER-FUNDS-INVESTMENTS-REG-1-25-2024-Q004. RegLegBrief AI Hallucination Research, published 2026-06-04. https://reglegbrief.com/regulators/j3/us/cftc/fcm-dco-customer-funds-investments-reg-1-25-2024/practitioners/accountants-ca-pa/finding/US-CFTC-US-001-FCM-DCO-CUSTOMER-FUNDS-INVESTMENTS-REG-1-25-2024-v1-004/
APA 7th edition Download
RegLeg Specialist Panel. (2026). Finding#3 — SIDR and risk disclosure compliance deadline [Hallucination finding RLB-F-US-CFTC-FCM-DCO-CUSTOMER-FUNDS-INVESTMENTS-REG-1-25-2024-Q004]. RegLegBrief AI Hallucination Research. https://reglegbrief.com/regulators/j3/us/cftc/fcm-dco-customer-funds-investments-reg-1-25-2024/practitioners/accountants-ca-pa/finding/US-CFTC-US-001-FCM-DCO-CUSTOMER-FUNDS-INVESTMENTS-REG-1-25-2024-v1-004/
Bluebook / OSCOLA (US + UK legal) Download
RegLeg Specialist Panel, Finding#3 — SIDR and risk disclosure compliance deadline [RLB-F-US-CFTC-FCM-DCO-CUSTOMER-FUNDS-INVESTMENTS-REG-1-25-2024-Q004], RegLegBrief AI Hallucination Research (June 04, 2026), https://reglegbrief.com/regulators/j3/us/cftc/fcm-dco-customer-funds-investments-reg-1-25-2024/practitioners/accountants-ca-pa/finding/US-CFTC-US-001-FCM-DCO-CUSTOMER-FUNDS-INVESTMENTS-REG-1-25-2024-v1-004/.
BibTeX Download
@misc{reglegbrief_RLB_F_US_CFTC_FCM_DCO_CUSTOMER_FUNDS_INVESTMENTS_REG_1_25_2024_Q004,
  author    = {RegLeg Specialist Panel},
  title     = {Finding#3 — SIDR and risk disclosure compliance deadline},
  year      = {2026},
  publisher = {RegLegBrief AI Hallucination Research},
  note      = {Hallucination finding Citation ID: RLB-F-US-CFTC-FCM-DCO-CUSTOMER-FUNDS-INVESTMENTS-REG-1-25-2024-Q004},
  url       = {https://reglegbrief.com/regulators/j3/us/cftc/fcm-dco-customer-funds-investments-reg-1-25-2024/practitioners/accountants-ca-pa/finding/US-CFTC-US-001-FCM-DCO-CUSTOMER-FUNDS-INVESTMENTS-REG-1-25-2024-v1-004/}
}
← Back to case study summary Case study detail →