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?
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.
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.
The fabricated SIDR and risk-disclosure compliance deadline — described by AI as roughly six months to a year after the February 21, 2025 general effective date — would have caused any client who followed that advice to miss the actual March 31, 2025 deadline by months. A missed CFTC report-update deadline is a documented deficiency, not a theoretical one: it creates an audit trail of non-compliance that follows the client into subsequent examinations.
For the advising lawyer, a dated opinion or compliance memo that set the wrong calendar is evidence in any subsequent dispute about whether the client was properly counselled. The AI self-corrected only when challenged, which means the error would have survived any review process that did not specifically probe the deadline.
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, Finding#3 — SIDR compliance deadline fabricated [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/lawyers/finding/US-CFTC-US-001-FCM-DCO-CUSTOMER-FUNDS-INVESTMENTS-REG-1-25-2024-v1-004/.
RegLeg Specialist Panel (2026). "Finding#3 — SIDR compliance deadline fabricated — Practitioners — Lawyers." 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/lawyers/finding/US-CFTC-US-001-FCM-DCO-CUSTOMER-FUNDS-INVESTMENTS-REG-1-25-2024-v1-004/
RegLeg Specialist Panel. (2026). Finding#3 — SIDR compliance deadline fabricated [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/lawyers/finding/US-CFTC-US-001-FCM-DCO-CUSTOMER-FUNDS-INVESTMENTS-REG-1-25-2024-v1-004/
@misc{reglegbrief_RLB_F_US_CFTC_FCM_DCO_CUSTOMER_FUNDS_INVESTMENTS_REG_1_25_2024_Q004,
author = {RegLeg Specialist Panel},
title = {Finding#3 — SIDR compliance deadline fabricated},
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/lawyers/finding/US-CFTC-US-001-FCM-DCO-CUSTOMER-FUNDS-INVESTMENTS-REG-1-25-2024-v1-004/}
}