Signs

They are often seen on the prototype and found on models more and more, but what do these symbols and signs you find on modern trucks actually mean ?
Here is a short list:

Sign	Origin	Meaning
	Germany	Waste transport with required permit.
	Italy	'domenica', vehicle exempt from Sunday driving ban.
a	Italy	'alimentari', vehicle carrying foodstuffs.
	Austria	Trucks bearing this sign have been certified to carry a lower gross weight and are only allowed to carry this certified (lower) weight.
	?	Low-noise vehicle
	Austria	Trucks bearing this sign have been certified to carry a lower gross weight but can also carry the weight they were originally certified for. (Trucks limited to 38t can also carry 40t if they have the 'H'-sign, 'E'-sign trucks can not).
	Germany	'Kombi-Verkehr' (Combined transport like road-rail, road-ship, road-air). Vehicles carrying this sign are exempted from the German Sun - and holiday driving ban, maximum travelling distance is only 150km however.
	Austria	Low-noise vehicle, exempted from the Austrian night driving ban.
	Austria	Trucks bearing this sign are allowed to use roads normally closed for trucks.
	Austria	Low emission vehicle.
	EU ?	Super low emission vehicle (Euro 2).
	Austria	Low-Noise / low emission vehicle ('green lorry').