Request ID: FOI-0895-2324 Date published: 05 July 2023
You asked
Hello, I have seen on your bus adverts and social media that 9 out of 10 cars in outer London are now ulez compliant. However I cannot find how this statistic was calculated or any reference to a study. Please could you help and clarify where this information came from. Much appreciated.
We answered
TfL Ref: FOI-0895-2324
Thank you for your request received by us on date asking for information about Your request has been considered in accordance with the requirements of the Freedom of Information Act / Environmental Information Regulations and our information access policy.
Specifically you asked:
“Hello, I have seen on your bus adverts and social media that 9 out of 10 cars in outer London are now ulez compliant. However I cannot find how this statistic was calculated or any reference to a study. Please could you help and clarify where this information came from.”
I can confirm that we hold the information you require.
Information about how TfL measures and reports ULEZ compliance levels, and the requested data, is available on our website here:
If this is not the information you are looking for, or if you are unable to access it for any reason, 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
