Consultation on draft new rules and guide for water redetermination references

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The Competition and Markets Authority's (CMA) purpose is to help people, businesses and the UK economy by protecting competition and tackling unfair behaviour.



Consultation outcome

The CMA has now published the results of this consultation which can be found on the New rules and guidance for water references page.

We have adopted new rules and guidance that are specific to water references made under section 12 of the Water Industry Act 1991. The new rules replace the current rules for water references (CMA17), which apply to a number of matters and not just water references, and establish

The Competition and Markets Authority's (CMA) purpose is to help people, businesses and the UK economy by protecting competition and tackling unfair behaviour.



Consultation outcome

The CMA has now published the results of this consultation which can be found on the New rules and guidance for water references page.

We have adopted new rules and guidance that are specific to water references made under section 12 of the Water Industry Act 1991. The new rules replace the current rules for water references (CMA17), which apply to a number of matters and not just water references, and establish a standalone procedure for these types of reference.

We consulted on the drafts of the new rules and guidance earlier this year from 1 August 2024 to 12 September 2024 (New rules and guide for water references consultation).

Respondents to the consultation included Ofwat, appointed water companies, and other relevant organisations. Respondents welcomed the development of new rules and guidance for water references.

Following the consultation, further revisions were made to the new rules and guidance, including clarification that they are intended to apply to all types of water references. A summary of the responses we received to our consultation and our proposed approach for addressing those responses (including the revisions that we have made) is set out in the consultation response document.



About this consultation

We consulted on draft new rules and guidance for water redetermination references. These will replace the current rules (CMA17) for such references that apply to a range of matters, namely merger reference, market reference and special reference groups.



Your personal data

Your name and contact details are your personal data. In collecting, receiving, storing, accessing and using your personal data, the CMA, as controller, is processing your personal data. The CMA processes personal data in accordance with data protection law. The CMA is processing your personal data so that it can contact you again, should it need further help or information from you, in order to carry out its merger work under Part 3 of the Enterprise Act 2002.

For more information about how the CMA processes personal data and your rights relating to that data, read our privacy notice.



  • CLOSED: This survey has concluded.

    Information you will need

    Draft guidance and documents related to this consultation are available in the documents section.

    You will be asked to provide:

    • Your contact details
    • Your feedback on the draft guidance
    • Any feedback documents you choose to share with us


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Page last updated: 10 Dec 2024, 11:03 AM