We are excited to announce that our SCR retrofit emission system for the TX4 taxi has now received official approval from Transport for London (TfL).
On 30th April 2025, Millbrook proving ground completed the final technical validation required by TfL for taxi drivers to meet Euro 6 emissions standards. .
We are currently awaiting a policy decision from TfL regarding the age limit for retrofitted vehicles. Euro 5 taxis that meet Euro 6 standards are currently only allowed to remain licensed for 12 years, as opposed to the 15 years permitted for Euro 6 factory models.
We are actively working with TfL to advise when an official decision will be issued on the age limit.
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