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Consultation on new draft guidance on mergers: exceptions to the duty to refer

The CMA is consulting on proposed updates to its published guidance relating to the application of the ‘de minimis’ exception.

Last fetched 03 May 2026 · gov.uk
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The CMA is consulting on new draft guidance on exceptions to its duty to refer mergers raising competition concerns for an in-depth phase 2 investigation. The revised draft updates Chapter 2 (markets of insufficient importance) setting out the CMA’s approach to the ‘de minimis’ exception, with no changes made to the other chapters.

We encourage any interested parties to respond to the consultation in writing by no later than 5pm on 8 January 2024, by emailing deminimis.guidance@cma.gov.uk. You can also contact us with any queries using this email address.

For more information, visit the Mergers exceptions to the duty to refer and undertakings in lieu guidance page

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