There are no barriers or toll booths. Cameras read vehicle number plates driven through the zone, which are checked against our database to see if they meet ULEZ emission standards.
Road signs are in place before the ULEZ starts at every entry point along the boundary and along key arterial approaches. They sit next to existing Congestion Charge signs.
The ULEZ operates 24 hours a day, every day of the year including weekends and public holidays. It covers the same area as the Congestion Charge. From 25 October 2021, ULEZ is expanding from central London to create a single, larger zone up to the North Circular Road (A406) and South Circular Road (A205). The North and South Circular roads themselves are not in the zone.
Signs are at every boundary point telling you when you're entering the zone.
Advance information signs appear on major roads around half a mile from the boundary.
TfL publishes a range of information that explains how we use personal data for ULEZ (and our other road user charging schemes). This includes when and why the ULEZ cameras will start collecting data, what happens to your vehicle data when it is captured by our cameras and how we handle your personal data to enforce the scheme.