London Ultra Low Emission Zone
Ultra Low Emission Zone - Transport for London
Within the Ultra Low Emission Zone (ULEZ) in central London vehicles must meet exhaust emission standards or their drivers need to pay to drive within the zone
TfL
To help clear London's air, the Ultra Low Emission Zone (ULEZ) operates 24 hours a day, 7 days a week, every day of the year , except Christmas Day (25 December). The zone operates across all London boroughs, and does not include the M25. If your vehicle
https://tfl.gov.uk/modes/driving/ultra-low-emission-zone