CMA’s mergers intelligence function: CMA56

Guidance for lawyers and third parties on how the CMA collects information before deciding whether to investigate a merger.



This guidance describes the steps that the Competition and Markets Authority (CMA) might take before it decides whether to investigate an unnotified merger. It is intended for lawyers advising merging parties on whether to notify the CMA of a merger, and for third parties who may wish to alert the CMA of an unnotified merger.

This guidance supplements Chapter 6 of Mergers: Guidance on the CMA’s jurisdiction and procedure (CMA2).

Published 17 June 2016
Last updated 5 September 2017 + show all updates
  1. Updated guidance published.
  2. First published.