FOI request detail

How long will Euro 6 diesel be ULEZ compliant?

Request ID: FOI-3070-2324
Date published: 05 December 2023

You asked

Good morning, my car is Euro 6 diesel be ULEZ compliant. But what will happen when the Euro 7 will be introduced on 1 July 2025 and will be the strictest standard yet? Will my Euro 6 diesel still be ULEZ compliant or not? many thanks,

We answered

TfL Ref: FOI-3070-2324

Thank you for your request received by Transport for London (TfL) on 27th November 2023 asking for information about the ULEZ scheme.

Your request has been considered in accordance with the requirements of the Freedom of Information Act and our information access policy. 

Specifically you asked:

My car is Euro 6 diesel be ULEZ compliant. But what will happen when the Euro 7 will be introduced on 1 July 2025 and will be the strictest standard yet? Will my Euro 6 diesel still be ULEZ compliant or not?”.

I can confirm that we hold the information you require.

There are no plans to change the ULEZ standards at present. The current standards for vehicle emissions are informed by the European emissions standards. The current standards for vehicles in the ULEZ is Euro 4 for petrol vehicles and Euro 6 for diesel vehicles. The current standards help the Mayor and TfL strike the right balance in maximising the benefits to Londoners by encouraging people to use less polluting vehicles while also ensuring compliant vehicles are not unaffordable to people who rely on a private vehicle to make a journey. For diesel vehicles, the ULEZ standard (Euro 6) is already aligned with the tightest emissions standards. Euro 7 standards have not been finalised at this stage.

Any proposed changes to an existing road user charging scheme, such as the ULEZ, or the introduction of any new scheme would be subject to formal public consultation.


If this is not the information you are looking for please do not hesitate to contact me.

Please see the attached information sheet for details of your right to appeal as well as information on copyright and what to do if you would like to re-use any of the information we have disclosed.

Yours sincerely,

David Wells
FOI Case Officer
FOI Case Management Team
General Counsel
Transport for London

Back to top

Want to make a request?

We'll email you the response within 20 working days.


We'll publish the response online without disclosing any personal information.