---
type: "AIHallucinationFinding"
title: "What does Section IV.3 of the 2025 OECD Merger Review Recommendation establish as the hierarchy for…"
citation_id: "RLB-H-INT-OECD-OECD-MERGER-REVIEW-RECOMMENDATION-2025-Q002-Sonnet46"
finding_uid: "INT-OECD-INT-001-OECD-MERGER-REVIEW-RECOMMENDATION-2025-v1-002--sonnet-46-websearch"
question_uid: "INT-OECD-INT-001-OECD-MERGER-REVIEW-RECOMMENDATION-2025-v1-002"
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-sonnet-4-6"
ai_subject_display: "Claude Sonnet 4.6 (web search on)"
ai_subject_version: "sonnet-46-websearch"
response_failure_mode: "misattributed"
substrate_document_name: "R1-REGULATION-00001"
substrate_document_path: "https://reglegbrief.com/substrate/INT/OECD/OECD-MERGER-REVIEW-RECOMMENDATION-2025/R1-REGULATION-00001/source.pdf"
substrate_section_anchor: "Section IV.3 — Remedies hierarchy: priority of standalone business divestitures within structural remedies"
citation_issue_types: ["Contradictory", "Pretextual"]
audiences: ["ai_labs"]
published_at: "2026-06-07T23:15:59.054686+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-v1-002--sonnet-46-websearch/"
tags: ["ai-hallucination", "misattributed", "oecd", "oecd-merger-review-recommendation-2025", "int"]
timestamp: "2026-06-16T00:00:00+00:00"
---

# AI Hallucination Finding: What does Section IV.3 of the 2025 OECD Merger Review Recommendation establish as the hierarchy for…

- **Citation ID.** `RLB-H-INT-OECD-OECD-MERGER-REVIEW-RECOMMENDATION-2025-Q002-Sonnet46`
- **Finding UID.** `INT-OECD-INT-001-OECD-MERGER-REVIEW-RECOMMENDATION-2025-v1-002--sonnet-46-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 Sonnet 4.6 (web search on)
- **Failure mode.** [`misattributed`](/okf/taxonomy/failure-modes.md)
- **Published.** 2026-06-07T23:15:59.054686+00:00

## Question put to the AI subject

What does Section IV.3 of the 2025 OECD Merger Review Recommendation establish as the hierarchy for acceptable remedies in merger proceedings, and what is the priority ordering within the structural remedies tier?

## AI subject's verbatim answer

Within structural remedies, there is a further internal preference ordering: — Upfront / 'fix-it-first' divestitures...rank highest...— Divestiture commitments with an approved buyer pool and a trustee mandate as backstop rank second. — 'Crown jewel' or ring-fenced asset packages...rank third.

## Verbatim regulator text contradicting the answer

> IV.3: 'Prioritise structural remedies over behavioural ones and, for structural remedies, prioritise the divestiture of standalone businesses.'

_Source:_ [R1-REGULATION-00001](https://reglegbrief.com/substrate/INT/OECD/OECD-MERGER-REVIEW-RECOMMENDATION-2025/R1-REGULATION-00001/source.pdf)
_Section anchor:_ Section IV.3 — Remedies hierarchy: priority of standalone business divestitures within structural remedies

## Failure mode

**`misattributed`** — Misattributed — the AI attributed a rule to the wrong source, wrong regulator, or wrong instrument.

## Citation-issue types

- **Contradictory** — <https://legalinstruments.oecd.org/en/instruments/OECD-LEGAL-0333>
- **Contradictory** — <https://legalinstruments.oecd.org/public/doc/195/195.en.pdf>
- **Pretextual** — <https://one.oecd.org/document/DAF/COMP/WP3(2025)2/en/pdf>
- **Contradictory** — <https://www.aoshearman.com/en/insights/global-trends-in-merger-control-enforcement/back-on-track-revival-of-merger-remedies-clears-path-for-more-approvals>

## 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: [misattributed](/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-Q002-Sonnet46`

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-v1-002--sonnet-46-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.