F gas regulation in Great Britain: Reform of the HFC phasedown
Overview
This is a consultation on proposed legislative reform: targeted changes to the HFC phasedown schedule for GB, which is set out in Annex 5 of the F gas Regulation. This reform would further restrict the overall total quantity of HFCs which can be placed on the market in GB. The changes to the HFC phasedown would commence from 1 January 2027.
The proposal in this consultation has been developed through collaborative working between UK, Scottish and Welsh governments. However, as the proposal to change the HFC phasedown for GB relates to a reserved matter, Defra’s Secretary of State is consulting on the proposal.
If, following this consultation and subsequent government consideration, we decide to proceed with reforms, those would be legislative reforms.
How to respond
This is a six-week consultation. Responses should be received by 11:59pm on 17 January 2026.
We strongly encourage that responses are made via this website as using the online survey greatly assists our analysis of the responses. However, alternative options are provided below if required:
Alternative ways to respond
• By email to fgas@defra.gov.uk
• Written responses by post, specifying which questions you are responding to:
F gas Regulation in Great Britain: Consultation
Domestic F gases and ODS Team
Defra
1st Floor, Seacole Building
2 Marsham Street
London
SW1P 4DF
Please note, any responses sent by post must have arrived at the above address by the closing date of the consultation in order to be considered. Unfortunately, we cannot analyse any responses received after this date. To ensure your response is included in the analysis, please consider responding online via Citizen Space.
When you reply, please confirm whether you are replying as an individual or submitting an official response on behalf of an organisation and include:
• your name
• your position (if applicable)
• the name of organisation (if applicable)
Complaints procedure
This consultation is being conducted in line with the Cabinet Office “Consultation Principles”.
All complaints about the consultation process should be submitted to the Consultation Coordinator via email: consultation.coordinator@defra.gov.uk. To meet with Defra’s service standard, all complaints will be responded to within 15 days of receipt.
Using and sharing your data and information provided
Information and comments submitted through this consultation will be used to inform our consideration of next steps. A report summarising responses and an outline of next steps will be published on gov.uk following the conclusion of the consultation.
How we use your personal data is set out in the consultation and call for evidence exercise privacy notice.
In taking forward policy development following this consultation, in addition to the Department for Environment, Food and Rural Affairs, consultation responses will be shared with Department for Energy Security and Net Zero, the Department for Business and Trade, the Ministry of Housing, Communities and Local Government, HM Treasury, and the Scottish and Welsh Governments as needed.
There may be occasions when Defra will share the information you provide in response to the consultation, including any personal data, with external analysts. This is for the purposes of consultation response analysis and provision of a report of the summary of responses only.
Additionally, responses may be shared with the Environment Agency, as administrator and operator of aspects of the F gas regulatory system in Great Britain, so that any future regulatory measures following this consultation are developed and implemented in a coordinated manner.
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Areas
- All Areas
Audiences
- Anyone from any background
Interests
- Business
- Defra - Consultations
- Environment
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