The low emission zone in Maastricht will cover cars and vans from 2019 on.
The municipality is investigating the possibility to enforce this low
emission zone by stickers, as used in the German scheme.

Diesel cars and vans built before 1-1-2006 and petrol cars and vans built before 1-1-1990 will no longer be allowed to enter the city of Maastricht.

For more information go here.
Picture source pixabay.