Image ??Licensed to i-Images Picture Agency. 08/04/2019. London, United Kingdom. Ultra-low emission zone charge. New ultra-low emission zone charge signal pictured near Tower Bridge in London. Motorists may have to pay more to drive in central London as a new??ultra-low emission zone (ULEZ) takes effect from today. Drivers of diesel cars roughly over four years old and petrol cars about 13 years old must pay ?L12.50 to enter the centre of the capital. Charges apply at all times and are on top of the already existing congestion charge, which is ?L11.50 between 7am and 6pm on weekdays. Picture by Gustavo Valiente / i-Images