Low emission zone (LEZ)
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What is the LEZ?
The Low Emission Zone (LEZ) was introduced in 2008 to encourage the most polluting heavy diesel vehicles driving in the Capital to become cleaner. The LEZ covers most of Greater London and operates 24 hours a day, every day of the year, including weekends and public and Bank Holidays.
To drive within it without paying a daily charge these vehicles must meet certain emissions standards that limit the amount of particulate matter (a type of pollution) coming from their exhausts.
Changes to LEZ emissions standards in 2012
Despite significant improvements in recent years, London's air pollution is still a concern and from 3 January 2012 the LEZ emissions standards will become more stringent. More vehicles will be affected, and those that are already affected will need to meet tighter emissions standards.
Find out more
To find out more about the Low emission zone, where, when and how it works, and about the changes to the required emission standards, visit http://www.tfl.gov.uk/roadusers/lez/.
Page last updated: 15/12/2011
