Green paper on automobiles
"Motor Vehicle Registration Certificate" is the household registration book of vehicles, also called the Green Book, because it is really green. If you need to buy a car by stages, you need to mortgage the motor vehicle registration certificate, which is also commonly known as the green book. During the mortgage period, the green copy will be kept by the vehicle management office for you, and will be kept by the owner after decompression, so you don't have to carry it with you.
If the driving license is the identity card of the vehicle, the motor vehicle registration certificate is the household register of the vehicle, and the motor vehicle registration certificate is the legal proof of the ownership of the vehicle, which is kept by the vehicle owner and not carried with the vehicle.
However, any vehicle registration such as vehicle transfer and transfer is required. If you take out a loan to buy a car, you won't be the owner until you pay off the loan. What you want to mortgage is the motor vehicle registration certificate, which is kept by the vehicle management office.