---
type: "AIHallucinationFinding"
title: "What do the primary operative sections of the 2025 OECD Merger Review Recommendation…"
citation_id: "RLB-H-INT-OECD-OECD-MERGER-REVIEW-RECOMMENDATION-2025-Q006-Opus47"
finding_uid: "INT-OECD-INT-001-OECD-MERGER-REVIEW-RECOMMENDATION-2025-v1-006--opus-47-websearch"
question_uid: "INT-OECD-INT-001-OECD-MERGER-REVIEW-RECOMMENDATION-2025-v1-006"
regulation_id: "INT-OECD-INT-001-OECD-MERGER-REVIEW-RECOMMENDATION-2025"
regulation_slug: "OECD-MERGER-REVIEW-RECOMMENDATION-2025"
regulation_title: "Recommendation of the Council on Merger Review (2025 Revision)"
regulator_short_code: "OECD"
regulatory_body_id: "OECD-INT-001"
jurisdiction_code: "INT"
j_level: "J1"
ai_subject: "claude-opus-4-7"
ai_subject_display: "Claude Opus 4.7 (web search on)"
ai_subject_version: "opus-47-websearch"
response_failure_mode: "inference_drift"
substrate_document_name: "R3-GUIDELINE-00004"
substrate_document_path: "https://reglegbrief.com/substrate/INT/OECD/OECD-MERGER-REVIEW-RECOMMENDATION-2025/R3-GUIDELINE-00004/source.html"
substrate_section_anchor: "Instrument identity — 2025 OECD Merger Review Recommendation (OECD/LEGAL/0333) vs. 2014 OECD International Co-operation Recommendation (OECD/LEGAL/0408)"
citation_issue_types: ["Contradictory"]
audiences: ["ai_labs"]
published_at: "2026-06-07T23:15:59.054437+00:00"
substrate_version: 1
methodology_version: "2.3"
license: "CC-BY-4.0"
resource: "https://reglegbrief.com/regulators/j1/int/oecd/OECD-MERGER-REVIEW-RECOMMENDATION-2025/ai-labs/finding/INT-OECD-INT-001-OECD-MERGER-REVIEW-RECOMMENDATION-2025-v1-006--opus-47-websearch/"
tags: ["ai-hallucination", "inference_drift", "oecd", "oecd-merger-review-recommendation-2025", "int"]
timestamp: "2026-06-16T00:00:00+00:00"
---

# AI Hallucination Finding: What do the primary operative sections of the 2025 OECD Merger Review Recommendation…

- **Citation ID.** `RLB-H-INT-OECD-OECD-MERGER-REVIEW-RECOMMENDATION-2025-Q006-Opus47`
- **Finding UID.** `INT-OECD-INT-001-OECD-MERGER-REVIEW-RECOMMENDATION-2025-v1-006--opus-47-websearch`
- **Regulation.** [`OECD-MERGER-REVIEW-RECOMMENDATION-2025`](/okf/regulations/OECD-MERGER-REVIEW-RECOMMENDATION-2025.md) — Recommendation of the Council on Merger Review (2025 Revision)
- **Regulator.** [`OECD-INT-001`](/okf/bodies/OECD-INT-001.md) — Organisation for Economic Co-operation and Development
- **AI subject.** Claude Opus 4.7 (web search on)
- **Failure mode.** [`inference_drift`](/okf/taxonomy/failure-modes.md)
- **Published.** 2026-06-07T23:15:59.054437+00:00

## Question put to the AI subject

What do the primary operative sections of the 2025 OECD Merger Review Recommendation (OECD/LEGAL/0333) address, and what topics were deliberately separated into other OECD instruments rather than included in this Recommendation?

## AI subject's verbatim answer

(v) TRANSNATIONAL CO-OPERATION specifically on merger reviews and remedy design, deliberately narrower than 2005 because broader cooperation is now governed by OECD/LEGAL/0408 (2014) ... (vi) MONITORING by the OECD Competition Committee with periodic reporting to Council.

## Verbatim regulator text contradicting the answer

> Section I: Maintain an effective merger review framework. Section II: Apply effective merger notification and review procedures. Section III: Apply sound merger analysis. Section IV: Develop and apply a clear remedies framework. Section V: Conduct ex-post assessment of merger decisions and/or remedies.

_Source:_ [R3-GUIDELINE-00004](https://reglegbrief.com/substrate/INT/OECD/OECD-MERGER-REVIEW-RECOMMENDATION-2025/R3-GUIDELINE-00004/source.html)
_Section anchor:_ Instrument identity — 2025 OECD Merger Review Recommendation (OECD/LEGAL/0333) vs. 2014 OECD International Co-operation Recommendation (OECD/LEGAL/0408)

## Failure mode

**`inference_drift`** — Inference drift — the AI inferred a conclusion the regulator's text does not warrant, often by combining unrelated provisions.

## Citation-issue types

- **Contradictory** — <https://legalinstruments.oecd.org/public/doc/195/195.en.pdf>
- **Contradictory** — <https://legalinstruments.oecd.org/en/instruments/OECD-LEGAL-0333>
- **Contradictory** — <https://legalinstruments.oecd.org/api/download/?uri=%2Fpublic%2F0b0c4aaf-fc5a-4f27-a852-871fe32af9d6.pdf&name=OECD-LEGAL-0333+-+revised+-+en.pdf>

## Related concepts

- Regulation: [OECD-MERGER-REVIEW-RECOMMENDATION-2025](/okf/regulations/OECD-MERGER-REVIEW-RECOMMENDATION-2025.md)
- Regulator: [OECD-INT-001](/okf/bodies/OECD-INT-001.md)
- Failure-mode taxonomy: [inference_drift](/okf/taxonomy/failure-modes.md)
- Methodology: [v2.3](/okf/methodology.md)
- Editorial standards: [right of reply](/okf/editorial-standards.md)

## Reproduction

Citation ID: `RLB-H-INT-OECD-OECD-MERGER-REVIEW-RECOMMENDATION-2025-Q006-Opus47`

Resource URL (HTML view of this finding):

<https://reglegbrief.com/regulators/j1/int/oecd/OECD-MERGER-REVIEW-RECOMMENDATION-2025/ai-labs/finding/INT-OECD-INT-001-OECD-MERGER-REVIEW-RECOMMENDATION-2025-v1-006--opus-47-websearch/>

This finding is reproducible against the substrate document linked above, using the same AI subject, the same methodology version, and the verbatim question text.