Ultra Low Emission Zone
More information on the ULEZ can be found in the ULEZ leaflet.
We relied on evidence from several sources when developing proposals to create the ULEZ.
Air pollution is one of the most significant challenges facing London, affecting the health of all Londoners. Every child in London breathes toxic air daily, damaging their lung growth. Road transport is the biggest source of the emissions damaging health in London.
Around half of emissions of oxides of nitrogen (NOx), which contribute to illegal levels of nitrogen dioxide (NO2), and particulate matter (PM) come from transport. These pollutants make chronic illnesses worse, shorten life expectancy and can damage lung development.
The communities suffering most from poor air quality are often the most vulnerable, including the children of London. At least 360 primary schools are in areas exceeding safe legal pollution levels.
To help improve the air we breathe we're introducing measures to promote more walking, cycling, use of public transport and to encourage sustainable freight deliveries.
Evidence for this view comes from:
Health impact assessment of air pollution on asthma in London
Imperial College London report 2022
Road transport as biggest source of health-damaging emissions
Reference: London Datastore, Greater London Authority
London Atmospheric Emissions Inventory (LAEI) 2019
London Atmospheric Emissions Inventory (LAEI) 2013
Air pollution and inequalities
2019 update report
Lung growth in children
Reference: Royal College of Physicians, 2017
Every breath we take: the lifelong impact of air pollution
Improving the air we breathe
Reference: ULEZ consultation (April-June 2017), TfL
ULEZ Monitoring Reports
These reports evaluate the impact of the ULEZ:
Central London ULEZ (2019)
- Central London ULEZ - 10 month report
- Central London ULEZ - 6 month report
- Central London ULEZ - 4 month report
- Central London ULEZ - First month report
Inner London ULEZ expansion (2021)
- Inner London ULEZ - 1 year report
- Inner London ULEZ - 6 month report
- Inner London ULEZ - First month report
London-wide ULEZ expansion (2023)
ULEZ scrappage schemes evaluation
ULEZ consultation on expansion - November 2017
ULEZ consultation on 2019 start date - April 2017
ULEZ policy consultation - October 2016
ULEZ consultation on taxis and PHVs - July 2015
Agreements with London's emergency services
We've signed Memorandum of Understanding (MoUs) with emergency services that are working to replace their vehicle fleets to meet ULEZ emissions standards.
Finance, operations & performance
Ultra Low Emission Zone factsheets
These factsheets include information about how many people pay the Ultra Low Emission Zone (ULEZ) charge, the compliance rates for vehicles using the zone and the number of Penalty Charge Notices that are issued.
ULEZ factsheet April 2023 - June 2023
ULEZ factsheet January 2023 - March 2023
ULEZ factsheet October 2022 - December 2022
ULEZ factsheet July 2022 - September 2022
ULEZ factsheet April 2022 - June 2022
ULEZ factsheet January 2022 - March 2022
ULEZ factsheet October 2021 - December 2021
ULEZ factsheet July 2021 - September 2021
ULEZ factsheet April 2021 - June 2021
ULEZ factsheet January 2021 - March 2021
ULEZ factsheet October 2020 - December 2020
ULEZ factsheet July 2020 - September 2020
ULEZ factsheet April 2020 - June 2020
ULEZ factsheet January 2020 - March 2020
ULEZ factsheet October 2019 - December 2019
ULEZ factsheet July 2019 - September 2019
ULEZ factsheet April 2019 - June 2019
Scrappage scheme factsheet
This factsheet includes information about how many people have applied for the London-wide ULEZ scrappage scheme, how many have been approved and the value of funds that have been committed since the scheme launched on 30 January 2023.
Four year programme
National vehicle scrappage fund
A proposal for the government to creative a national vehicle scrappage fund, which can be accessed by cities that implement Clean Air Zones.