Competition Act and cartels

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Services

• Septic tanks and sewage treatment plants: what you need to do

  How to meet the general binding rules or apply for a permit if you have a septic tank or treatment plant - fees, application forms and exceptions

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Guidance and regulation

• Competing for talent
  • Guidance
  • 9 September 2025
  • Competition and Markets Authority
• CMA investigation procedures in Competition Act 1998 cases: CMA8
  • Guidance
  • 2 January 2025
  • Competition and Markets Authority
• Horizontal agreements
  • Guidance
  • 16 August 2023
  • Competition and Markets Authority
• Competing fairly in business: short guide to competition law
  • Guidance
  • 18 November 2015
  • Competition and Markets Authority
• Collaborating with other businesses
  • Guidance
  • 15 August 2025
  • Competition and Markets Authority

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News and communications

• Court upholds CMA’s £99m fine on pharma over excessive NHS thyroid drug prices
  • 8 May 2025
  • Competition and Markets Authority
  • Press release
• Sports broadcast and production companies fined £4 million in freelancer pay investigation
  • 21 March 2025
  • Competition and Markets Authority
  • Press release
• CMA reaches settlement with banks in competition case
  • 21 February 2025
  • Competition and Markets Authority
  • Press release
• CMA probes possible bid-rigging in relation to school improvement fund
  • 11 December 2024
  • Competition and Markets Authority
  • Press release
• UK competition law enforcement: a look ahead
  • 5 December 2024
  • Competition and Markets Authority
  • Speech

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Research and statistics

• UK businesses’ understanding of competition law
  • 22 October 2018
  • Competition and Markets Authority
  • Research
• Small businesses’ understanding of competition law
  • 18 November 2015
  • Competition and Markets Authority
  • Research
• Competition Act 1998 abuse of dominance: evaluation of OFT decision
  • 23 October 2015
  • Competition and Markets Authority
  • Research

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Policy papers and consultations

• Technology Transfer Block Exemption Regulation
  • 14 March 2025
  • Competition and Markets Authority
  • Consultation outcome
  • Date closed 06 September 2024
• Consultation on draft CA98 procedures guidance
  • 10 December 2021
  • Competition and Markets Authority
  • Consultation outcome
  • Date closed 28 September 2021
• Consultation on proposed commitments in respect of Google’s ‘Privacy Sandbox’ browser changes
  • 26 November 2021
  • Competition and Markets Authority
  • Consultation outcome
  • Date closed 08 July 2021
• Consultation on modified commitments in respect of Google’s ‘Privacy Sandbox’ browser changes
  • 26 November 2021
  • Competition and Markets Authority
  • Closed consultation
  • Date closed 17 December 2021
• Revised CA98 procedures guidance
  • 4 November 2020
  • Competition and Markets Authority
  • Consultation outcome
  • Date closed 11 September 2020

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Transparency and freedom of information releases

• Competition Act 1998: public register of decisions
  • 1 September 2025
  • Competition and Markets Authority
  • Corporate report
• Competition law warning and advisory letters register
  • 13 May 2025
  • Competition and Markets Authority
  • Corporate report
• Warning and advisory letter maps
  • 13 May 2025
  • Competition and Markets Authority
  • Corporate report
• Competition Act 1998 directions and commitments register
  • 8 November 2023
  • Competition and Markets Authority
  • Corporate report
• Confidentiality rings and disclosure rooms: CMA roundtable
  • 20 January 2017
  • Competition and Markets Authority
  • Corporate report

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Organisations

• Crown Commercial Service

• Competition and Markets Authority
• Environment Agency