United Kingdom: Competition and Markets Authority released an updated markets regime guidance (CMA3)

On 3 February 2026, the Competition and Markets Authority (CMA) released guidance on market reviews, market studies, market investigations, and the monitoring and review of market remedies (CMA3) under Section 171 of the Enterprise Act 2002, as amended by the Enterprise and Regulatory Reform Act 2013 and the Digital Markets, Competition and Consumers Act 2024. The guidance sets out the CMA's approach to the market regime, covering market reviews, market studies, market investigation references, market investigations, and the monitoring and review of market remedies. It explains statutory powers, consultation requirements, time limits, evidence gathering, market definition, assessment of competition and consumer outcomes, adverse effects on competition, and the design and implementation of remedies, undertakings, and orders.