An Ultra Low Emission Zone (ULEZ) is a city district where vehicles must meet strict exhaust emission standards to enter without paying a daily charge. These zones rely on automated license plate readers to check a vehicle's compliance against a database. They effectively ban older diesels and high-polluting petrol cars from city centers to improve air quality.
The customer wants to sell the old diesel estate because it's not ULEZ compliant anymore.
In the UK, a vehicle usually needs to meet Euro 4 standards for petrol or Euro 6 for diesel to avoid ULEZ fees.
Also heard as
- Ultra Low Emission Zone
Related terms
Diesel particulate filter
An exhaust component that traps and periodically burns off soot from diesel emissions.
Catalytic converter
An exhaust emission control device that reduces toxic gases and pollutants into less harmful compounds.
LEV
Low-Emission Vehicle, a regulatory standard for cars that produce minimal tailpipe pollutants.