Just like Every person having their own names, each vehicle must have its own number boards called “Number plates”. Each vehicle must have its own number (i.e. Registration number) and it will be written in the Number plates. Number plates are made up of Metals/platic and contains different colors based on the purpose of the vehicles used. Each country follows its own color and standards for number plates.
Suppose if you take a country India, car number plates which has White color stands for “Owned for Personal use”. Yellow color stands for “Owned for Public use i.e. taxi services or other public use”. Red color for “Government aided” etc. By looking at this we can easily find out the purpose of the vehicle and also differentiate it. Each vehicle will have its own and unique number. Numbers inside the number plate are unique and it is created with the combination of city/state regional code and number. This will help in identifying the vehicles easily from theft or other accidental activities. Some of the rules and regulations for the number plates are 1) It should be properly painted/readable to the naked eye. 2) Plates should be properly fixed in the vehicle. 3) Whenever you sell/buy a vehicle, the registration need to change for the proper owner.i.e. you need to destroy the old plate and get a new number from the local registration. Each number plates are vary from size and shape based on the type of the vehicle.
Many countries follow four digit number codes with the Prefix/Suffix alphabets to get the unique numbers. Number plates are usually attached to the vehicle all of its lifetime but like mentioned above many users may change its number when they buy a vehicle as a second hand. This is not mandatory but safer to register it again. Number plates are attached at the front and/or rear side of the cars/ other vehicles for identification to avoid misuse or other unwanted activities.