Datei:Umweltplakette-Germany.jpg – Wikipedia

When driving into Germany, do you need to stop at customs first? How does this work when entering other countries? - Quora

Emissions stickers for Germany

Portal:Germany/Selected picture - Wikipedia

Portal:Germany/Selected picture - Wikipedia

How to get to Berlin-Tempelhof by Subway, Train or Bus?

Datei:PlaketteDreisamstadion.JPG - Alemannische Wikipedia

File:Umweltplakette-Germany.jpg - Wikimedia Commons

File:Flag of germany 800 480.png - Wikipedia

Order the official German emissions sticker