The ULEZ will operate 24 hours a day, 7 days a week within the same area as the current Congestion Charging Zone (CCZ), and comes into force in September 2020.
The ULEZ standards are in addition to the Congestion Charge and the Low Emission Zone requirements.
From September 2020, all cars and vans will need to meet exhaust emission standards (ULEZ standards), or pay a daily charge, when travelling in central London.
The charge will apply to petrol cars that don't meet Euro 4 standards and diesels that don't meet Euro 6 standards. That means petrol cars registered before 1 January 2006 and diesel cars registered before 1 September 2015 will have to pay the £12.50 fee
The ULEZ standards are in addition to any Congestion Charge or Low Emission Zone (LEZ) charges already applied. The area covered by the ULEZ is the same as the current Congestion Charge Zone (CCZ). It will operate 24 hours a day, every day of the year, including weekends and public holidays.
The ULEZ will cover the same area as the Congestion Charge zone, which is identifiable by road signs showing where it applies. There will be no barriers or toll booths. Cameras will read vehicle number plates as they are driven within the zone to see if the ULEZ requirements are met.
London's air quality has improved significantly in recent years and carbon dioxide (CO2) emissions from transport have fallen. We currently meet legal limits for all but one air pollutant. This pollutant is nitrogen dioxide (NOx), which has impacts on public health. The other pollutant of concern is particulate matter (PM) and there are no safe limits for PM2.5.
An equivalent of 9,400 deaths in London per year can be attributed to air quality related illness. The Capital also faces challenging targets to help mitigate the effects of climate change.
Road transport contributes around half of emissions of oxides of nitrogen (NOx) in Greater London. Diesel vehicles form a significant proportion of these. NOx emissions form harmful NO2 in the atmosphere.
We're introducing measures to promote more walking, cycling, use of public transport and to encourage sustainable freight deliveries. ULEZ is another way to further reduce the most harmful emissions generated by road transport in central London and across the Capital.