Bundeswehr license plates have a hyphen after the Y and mainly six codes which are freely assigned and independent of unit or vehicle type. Bundeswehr vehicles purchased in the United States have only three codes after the Y. Army, navy and air force inspectors have only one number – the inspector general of the Bundeswehr, for example, has the number “Y – 1” on the road.
The only other letter not yet taken was the “X”. These code letters were later assigned to NATO vehicles. Service vehicles from the international headquarters in Germany can be recognized by this letter. There are far fewer of these vehicles in Germany than the Bundeswehr counterpart: only around 100 vehicles are on the road with the “X” on the license plate.