0 abbreviation for ultra low emission zone: an area of a city that you must pay to enter if you are driving a vehicle that produces more than a very low level of harmful emissions (= waste gases):
Drivers are worried about the prospect of being penalized for entering cities now and in the future, as ULEZs are rolled out across the country.
To help improve air quality, an Ultra Low Emission Zone (ULEZ) operates 24 hours a day, 7 days a week, every day of the year, except Christmas Day.
The London Ultra Low Emission Zone (ULEZ) is now active, impacting an estimated 2.5 million vehicles that drive in the capital each year.
