Petrol vehicles that don't meet Euro 4 standards and diesel vehicles that do not meet Euro 6 standards will have to pay a ULEZ daily fee (£12.50 for cars, vans and motorbikes; £100 for buses, coaches and HGVs) to drive in the zone, 24 hours a day, 365 days a year. Approximately petrol cars more than 13 years old in 2019, and diesel cars more than 4 years old in 2019, will not meet the new standards. The total cost, with the congestion charge added (during the times of day it is applicable), for motorists with non-compliant cars will be £24 a day.
The ULEZ will apply to all vehicle types, except black taxis. It is estimated that introducing ULEZ in central London will result in nearly a 50 per cent reduction in road transport NOx emissions in 2020.