German commercial marking - keo-the-dog
As header seen a marking on the front of a German truck , it was a green circle with a white L . Anyone know what it is ...cheers...Keo.
German commercial marking - smokie
Lorry? :-)
German commercial marking - Bagpuss
It means "Laermarm", translated as noise free and is actually to meet a law in Austria.

Basically lorries are not allowed to drive on certain autobahns in Austria at night unless they are proven to meet a noise emissions test. This marking shows that the lorry has met the requirements of the noise emissions test and is therefore allowed on these autobahns at night.
German commercial marking - keo-the-dog
Now i believe that , it sounds right . Many thanks...Keo