---
type: "Regulation"
title: "Recommendation of the Council on Merger Review (2025 Revision)"
regulation_slug: "OECD-MERGER-REVIEW-RECOMMENDATION-2025"
regulation_id: "340389"
regulator_short_code: "OECD"
body_id: "OECD-INT-002"
jurisdiction_code: "INT"
j_level: "J1"
topic: null
publication_date: null
last_amended_date: "2025-06-03"
substrate_version: 1
audit_status: "queued"
active_findings_count: 7
whitepapers_count: 0
license: "CC-BY-4.0"
timestamp: "2026-06-16T00:00:00+00:00"
---

# Recommendation of the Council on Merger Review (2025 Revision)

- **Slug.** `OECD-MERGER-REVIEW-RECOMMENDATION-2025`
- **Regulator.** [OECD — Organisation for Economic Co-operation and Development](/okf/bodies/OECD-INT-002.md)
- **Jurisdiction.** INT
- **J-level.** J1
- **Last amended.** 2025-06-03

## Why this regulation was selected for audit

Revised at the June 3, 2025 OECD Ministerial Council Meeting to strengthen international convergence on merger notification thresholds, review procedures, and efficiency-claim analysis; as one of the most recently revised competition instruments, it is a training-data-gap candidate.

## Active findings (7)

- [`RLB-H-INT-OECD-OECD-MERGER-REVIEW-RECOMMENDATION-2025-Q005-Sonnet46`](/okf/findings/INT-OECD-INT-001-OECD-MERGER-REVIEW-RECOMMENDATION-2025-v1-005--sonnet-46-websearch.md) — misstated_rule — Claude Sonnet 4.6 (web search on)
- [`RLB-H-INT-OECD-OECD-MERGER-REVIEW-RECOMMENDATION-2025-Q004-Sonnet46`](/okf/findings/INT-OECD-INT-001-OECD-MERGER-REVIEW-RECOMMENDATION-2025-v1-004--sonnet-46-websearch.md) — misstated_rule — Claude Sonnet 4.6 (web search on)
- [`RLB-H-INT-OECD-OECD-MERGER-REVIEW-RECOMMENDATION-2025-Q002-Sonnet46`](/okf/findings/INT-OECD-INT-001-OECD-MERGER-REVIEW-RECOMMENDATION-2025-v1-002--sonnet-46-websearch.md) — misattributed — Claude Sonnet 4.6 (web search on)
- [`RLB-H-INT-OECD-OECD-MERGER-REVIEW-RECOMMENDATION-2025-Q001-Sonnet46`](/okf/findings/INT-OECD-INT-001-OECD-MERGER-REVIEW-RECOMMENDATION-2025-v1-001--sonnet-46-websearch.md) — inference_drift — Claude Sonnet 4.6 (web search on)
- [`RLB-H-INT-OECD-OECD-MERGER-REVIEW-RECOMMENDATION-2025-Q006-Opus47`](/okf/findings/INT-OECD-INT-001-OECD-MERGER-REVIEW-RECOMMENDATION-2025-v1-006--opus-47-websearch.md) — inference_drift — Claude Opus 4.7 (web search on)
- [`RLB-H-INT-OECD-OECD-MERGER-REVIEW-RECOMMENDATION-2025-Q005-Opus47`](/okf/findings/INT-OECD-INT-001-OECD-MERGER-REVIEW-RECOMMENDATION-2025-v1-005--opus-47-websearch.md) — inference_drift — Claude Opus 4.7 (web search on)
- [`RLB-H-INT-OECD-OECD-MERGER-REVIEW-RECOMMENDATION-2025-Q001-Opus47`](/okf/findings/INT-OECD-INT-001-OECD-MERGER-REVIEW-RECOMMENDATION-2025-v1-001--opus-47-websearch.md) — inference_drift — Claude Opus 4.7 (web search on)

## AI Labs whitepapers (0)

_No whitepaper published yet for this regulation._

## Related concepts

- [All regulations](/okf/regulations/index.md)
- [Regulator: OECD-INT-002](/okf/bodies/OECD-INT-002.md)
- [Methodology](/okf/methodology.md)