I occasionally need to drive into Germany for work and since I'm usually taking a rental car it can be [troublesome to obtain an Umweltzone sticker](https://travel.stackexchange.com/questions/5946/where-can-i-buy-the-german-environmental-badge-while-driving-to-my-destination-i) while on the road. Therefore it is useful to know where exactly do all the Umweltzones begin and end.

Is there a comprehensive official map of all the German environmental zones? [There are websites](https://www.environmentalbadge.com/validity-of-environmental-badges/) which list the cities where the Umweltzone sticker is mandatory, but their maps are not detailed enough to see the exact border of each zone.