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Tell the CMA about competition and consumer issues.
This guidance was intended to help traders to comply with the Consumer Protection from Unfair Trading Regulations 2008 (CPRs). It is replaced by 'CMA207: unfair commercial practices' from 6 April 2025.
Guidance for businesses and their advisers on CMA's procedures for operating the merger control regime under the Enterprise Act 2002.
Tell the CMA about issues with a business, a market, or to provide information about a new or existing case.
Guidance to help businesses make sure their contract terms and notices are fair and clear to consumers.
How designated retailers are expected to fairly manage their relationships with suppliers.
Guidelines for businesses and their advisors on the CMA鈥檚 substantive approach to assessing mergers.
Why the Competition and Markets Authority (CMA) has cleared the Vodafone / Three merger and what it could mean for customers.
Details on the new digital markets competition regime, and how it will promote competition in digital markets.
A basic guide for businesses on the Consumer Protection from Unfair Trading Regulations.
Guidance on processes that the CMA uses when using its powers under the Competition Act 1998 (CA98) to investigate suspected infringements of competition law.
How to appeal a regulatory decision from the Environment Agency or report when they have not followed the Regulators鈥� Code.
Guidance on how the CMA applies the Chapter I prohibition in the Competition Act 1998 to vertical agreements, and on the application of the VABEO to vertical agreements
Information on procedures, potential consequences of non-notification, new and adopted CMA guidance and who to contact.
Quick guide, intended primarily for business, providing a simple overview of the UK merger regime and the CMA鈥檚 approach when reviewing mergers.
Guidance on how the CMA applies the Chapter I prohibition in the Competition Act 1998 to horizontal agreements, and on the application of the Specialisation Agreements Block Exemption and the Research and Development Block E鈥�
These orders, and the tank transfer price calculator, are intended to make it easier for customers to switch LP gas suppliers.
Guidance on the principles and process of applications for leniency and no-action in cartel cases.
Guidance for merging parties and legal advisers on the CMA鈥檚 use of Interim Measures and derogations in merger investigations.
The order implements the reforms set out in the Competition and Markets Authority鈥檚 (CMA) retail banking market investigation report.
Don鈥檛 include personal or financial information like your National Insurance number or credit card details.
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