What does this traffic sign indicate?

The traffic sign shown indicates the availability of CNG (Compressed Natural Gas) fuel stations. This sign is crucial for drivers of vehicles designed to operate on natural gas, as it informs them where they can refuel.

In Germany, different fuel types are signposted to help drivers easily identify fueling stations that match their vehicles' requirements. The sign focuses specifically on CNG and reflects the growing trend toward more environmentally friendly fuel sources.

Being aware of these signs is important as they not only assist in refueling but also support the use of alternative fuels that contribute to reducing emissions. Hence, recognizing this sign allows drivers to make informed decisions about where to fill up their vehicles.