Ask Honest John

Most recently answered crit'air questions
Do I need a Crit'Air equivalent sticker for Austria when driving in that country? I already have a German and French sticker ready for our trip.
Do I need a Crit'Air vignette for my Mercedes EQA for Cherbourg and the surrounding region?
Should the Crit'Air disc be attached to the bottom front offside of the windscreen on UKregistered cars?