What vehicles are generally exempt from the ban on road traffic in "environmental zones"?

In Germany, environmental zones are established to improve air quality and reduce pollution. Certain vehicles are granted exemptions from the restrictions imposed in these zones to ensure essential services and agricultural activities can continue without interruption.

The correct exemptions include:

1. Agricultural and forestry tractors, which are vital for farming operations and often operate on rural roads that may pass through urban zones.
2. Ambulances on duty, which are crucial for emergency medical services, allowing them to respond quickly to emergencies regardless of environmental regulations.

It is essential to recognize that exemptions apply to specific vehicle types for meaningful reasons related to public health and agricultural needs. Any other vehicle not included in these categories must adhere to the traffic restrictions in environmental zones. Understanding these exemptions helps ensure compliance with local regulations while also supporting vital services in the community.