What is Feinstaubalarm?

It is an information campaign that was launched in winter (usually between 15 October and 15 April) in 2016 in the city of Stuttgart to warn drivers about high levels of fine particulate matter (PM10) (stuttgart.de, theguardian.com).
During this period, people are asked to reduce car use and switch to public transport, walking, or cycling.
This scheme was discontinued in April 2020 after air-pollution measurements improved.

Are fines imposed for driving during Feinstaubalarm?

No! There is no licence withdrawal, no driving ban, and no fine just because the alert has been declared.

Feinstaubalarm is not a binding law, but an environmental recommendation to reduce pressure on air quality (stuttgart.de).
A legal fine can only be imposed if there are other applicable regulations, such as actual measures banning high-emission diesel vehicles.

Is there a legally binding traffic ban for cleaner air?

Yes, but:

It concerns banning diesel vehicles that meet emission standards of Euro 4 or lower within certain areas of Stuttgart.
This ban applies throughout the year, not only on Feinstaubalarm days, and leads to fines of around €100 plus additional fees.

Summary:
Driving your car while a Feinstaubalarm is in effect is not a legal offence in itself, but rather ignoring an environmental and social recommendation.
The fines and legal measures applied in Stuttgart do not arise from the “alert” itself, but from:
– the actual diesel ban within the defined Umweltzone
– the Federal Immission Control Act (BImSchG)

Practical tips:
Check weather and air-quality apps before you drive.
If you own an older diesel car, avoid entering the restricted zone or use alternative means of transport.
A simple response to such alerts shows environmental awareness and civic responsibility — and does not create any additional legal burden for you.

The editorial team of the website strives to provide accurate information based on intensive research and multiple sources. Nevertheless, errors or uncertainties may occur. Therefore, the information provided in the articles should be regarded as a preliminary reference only, and you should always refer to the competent authorities for binding and up-to-date information.