The green marking with the Roman numeral "VI" indicates an even higher level of environmental friendliness than the older markings "L", "G", "U" and "S". Vehicles marked in this way must meet demanding requirements for reduced noise, compliance with Euro VI emission standards and must be equipped with prescribed safety features - see "S" designation.
International regulations set the diameter of the sticker at 220 mm, while the diameter of the green circle is set at 200 mm.
A sticker with a diameter of 150 mm is allowed to be placed on the vehicle if, due to insufficient space, it is not possible to use a sticker with a diameter of 220 mm.
