AI subject tested: Claude Sonnet 4.6 (web search on)
Question (paraphrased): You are drafting a registration-renewal calendar memo for a multi-strategy CPO/CTA's chief compliance officer. The memo's first paragraph must quote verbatim the registration-expiration rule that 7 USC 6n(2) sets for CPO and CTA registrations, including the specific statutory expiration date and the Commission's authority to alter that date by rule, regulation, or order.
AI response:
"Section 4n(2) of the Commodity Exchange Act, codified at 7 U.S.C. 6n(2), establishes the registration expiration rule for commodity pool operators and commodity trading advisors. The provision states, in relevant part: each registration granted under this section shall expire on the 31st day of October in each year following the year in which such registration was granted."
Regulator verbatim text:
"Each registration under this section shall expire on the 30th day of June of each year, or at such other time, not less than one year from the effective date thereof, as the Commission may by rule, regulation, or order prescribe, and shall be renewed upon application therefor subject to the same requirements as in the case of an original application."
Failure mode: inference_drift
Substrate document: R1-USC_STATUTE-00005
This finding documents a confirmed hallucination by Claude Sonnet 4.6 (web search on) on a probe of the regulation. The model's response was tested against the regulator's verbatim primary text and classified as inference_drift. Full per-finding context is available via the linked Citation ID.
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). "You are drafting a registration-renewal calendar memo for a multi-strategy CPO/CTA's chief compliance officer — AI Labs." Citation ID: RLB-H-US-CFTC-CPO-CTA-REGULATION-4-7-QEP-THRESHOLDS-2024-Q029-Sonnet46. RegLegBrief AI Hallucination Research, published 2026-06-11. https://reglegbrief.com/regulators/j1/us/cftc/cpo-cta-regulation-4-7-qep-thresholds-2024/whitepaper/finding/US-CFTC-US-001-CPO-CTA-REGULATION-4-7-QEP-THRESHOLDS-2024-v1-029--sonnet-46-websearch/
RegLeg Specialist Panel. (2026). You are drafting a registration-renewal calendar memo for a multi-strategy CPO/CTA's chief compliance officer [Hallucination finding RLB-H-US-CFTC-CPO-CTA-REGULATION-4-7-QEP-THRESHOLDS-2024-Q029-Sonnet46]. RegLegBrief AI Hallucination Research. https://reglegbrief.com/regulators/j1/us/cftc/cpo-cta-regulation-4-7-qep-thresholds-2024/whitepaper/finding/US-CFTC-US-001-CPO-CTA-REGULATION-4-7-QEP-THRESHOLDS-2024-v1-029--sonnet-46-websearch/
RegLeg Specialist Panel, You are drafting a registration-renewal calendar memo for a multi-strategy CPO/CTA's chief compliance officer [RLB-H-US-CFTC-CPO-CTA-REGULATION-4-7-QEP-THRESHOLDS-2024-Q029-Sonnet46], RegLegBrief AI Hallucination Research (June 11, 2026), https://reglegbrief.com/regulators/j1/us/cftc/cpo-cta-regulation-4-7-qep-thresholds-2024/whitepaper/finding/US-CFTC-US-001-CPO-CTA-REGULATION-4-7-QEP-THRESHOLDS-2024-v1-029--sonnet-46-websearch/.
@misc{reglegbrief_RLB_H_US_CFTC_CPO_CTA_REGULATION_4_7_QEP_THRESHOLDS_2024_Q029_Sonnet46,
author = {RegLeg Specialist Panel},
title = {You are drafting a registration-renewal calendar memo for a multi-strategy CPO/CTA's chief compliance officer},
year = {2026},
publisher = {RegLegBrief AI Hallucination Research},
note = {Hallucination finding Citation ID: RLB-H-US-CFTC-CPO-CTA-REGULATION-4-7-QEP-THRESHOLDS-2024-Q029-Sonnet46},
url = {https://reglegbrief.com/regulators/j1/us/cftc/cpo-cta-regulation-4-7-qep-thresholds-2024/whitepaper/finding/US-CFTC-US-001-CPO-CTA-REGULATION-4-7-QEP-THRESHOLDS-2024-v1-029--sonnet-46-websearch/}
}
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.