I'm planning a trip that will cover France and Germany (and other countries).
Now since I will go by rental car it may be difficult to order environment badges in advance. For Germany I don't think it's a big issue since I'm supposed to be able to buy one over-the-counter at a TÜV station, but in France the corresponding option does not seem to be available.
Fortunately I'm not going to drive through a ZCR zone, but will have to drive into at least one ZPA (Grenoble-Alpes Metropolis), but will likely drive through a couple of others (Bouches-du-Rhône / Marseille, Côte d‘Or / Dijon, Drôme / Valence, Greater Lille & Lyon).
Can I hope that these zones won't be into effect for my planned vacation during june? How often are crit'air badges actually required in these areas and time of year?
I've done some research and found this page for the Drome/Valence ZPA where I can see the status for today, but am also able to enter different dates. Is this data authentic? Well I assume that I can't trust the info on future days (especially not far in the future), but is the info on past days reliable? In that case I could just check how many times the ZPA has been in effect...