The 5 Danish cities with LEZs have tightened their emissions standards, and also now affect vans

Milan Area C was suspended until 14 June 2020 due to the Corona virus crisis. 

The Stuttgart Euro 6 LEZ, often called 'Diesel Ban' will be enforced from October 2020.

Lockdown reduced pollution dramatically. More space for cycling, walking, public transport is wanted not "business as usual"