Sweden operates environmental zones (miljözoner) in several major cities to reduce air pollution, particularly nitrogen oxides and particulates from older diesel vehicles. Understanding the rules is essential for drivers in Stockholm, Gothenburg, Malmö, and other cities.
The Three Zone Classes
Miljözon 1 (the most established): prohibits older heavy vehicles (trucks and buses) that do not meet current emission standards from entering. Most private passenger cars are unaffected. Miljözon 2: extends restrictions to older diesel passenger cars (pre-Euro 5) and some petrol cars. Miljözon 3: the strictest class, permitting only electric and hydrogen vehicles, or vehicles running entirely on low-emission fuels.
How to Know If Your Vehicle Qualifies
Your vehicle’s Euro emission class is recorded in the Swedish vehicle register (fordonsregistret). You can check on the Transportstyrelsen website using your registration number. Signs at zone boundaries indicate which class applies.
Consequences of Non-Compliance
Driving a non-compliant vehicle in an environmental zone results in a fine. Repeat offences attract higher penalties.
Exam tip: Environmental zones primarily target older diesel vehicles. A new petrol or hybrid car will generally be compliant with Miljözon 1 and 2 without modification.