Personalised Number Plates or private number plates have long been popular among some drivers as a way to enhance the individuality and look of their prized car. Of course, there are always official rules and regulations to consider before a car can be fitted out with such an accessory. In the UK, cars have to have registration plates both on the front and back of the vehicle, with a white plate on the front and a yellow plate at the back. In addition, there are strict rules regarding the font size and type that is to be used, determined by the need for clarity, visibility and uniformity. The height, width and thickness of the numbers and letters have to be of a specific type, which is determined by the Driving and Vehicle Licensing Agency (DVLA).