CH is Switzerland. It stands for Confoederatio Helvetica
Iceland
Algeria
Guernsey
Hungary
Switzerland, CH stands for Confederatio Helvetica
If you mean the international car registration then it is Switzerland
If you mean this in car/vehicle terms then I'm sure its the registration plate.....Vehicle Registration Mark
biusxxsd
the rear plate
If you're asking about where to put your sticker on the license plate than that would be the rear plate.
If there is not an existing plate, you need the title, registration, and valid drivers license.