London ULEZ zones The Ultra Low Emission Zone (ULEZ) replaced the T-Charge on 8th April 2019. It operates 24 hours a day, 7 days a week, every day of the year, within the same area as the Congestion Charge zone. See the Transport for London (TfL) the "Where and When" webpage. More Posted: 190410 London UELZ boundary map from 8th April 2019 Central London London ULEZ boundary map from 26th October 2012 Within the North and South Circular roads Discounts and exemptions Some drivers and vehicles qualify for at least a temporary discount from the Ultra Low Emission Zone charge (ULEZ). Others are entirely exempt. See the section on Historic Vehicles: Historic vehicles You can apply to stop paying vehicle tax if your vehicle was built more than 40 years ago. This date moves forward on a 40-year rolling system. Assuming the rules stay the same, when the ULEZ launches in April 2019, vehicles built before 1979 will be eligible to apply for historic vehicle tax class. All vehicles that have a historic vehicle tax class will be exempt from the ULEZ. This tax class excludes any vehicle used commercially (for example, coffee vans or street food vans). In line with the existing LEZ discount all vehicles registered before 1 January 1973 will be exempt from the ULEZ, regardless of commercial use or otherwise. If your vehicle meets the above criteria and is registered in the UK, it is automatically exempt and you don't need to register with us. If your vehicle meets the above criteria but is registered outside the UK, you are also exempt, but will need to register with us. Details on how you can register will be available closer to the time.