Placing and design of plates

The plates are usually attached directly to a vehicle or a chassis plate is attached to the vehicle. Sometimes, plate frames contain inserted by the service center of the vehicle or the dealer from which the vehicle was purchased ads. Vehicle owners can also purchase frames to replace the original images. In some jurisdictions, license plate frames are illegal. The plates are designed to meet the standards for reading the eye day or night, or electronic equipment. Some drivers buy cover bright, smoke-colored or dyed passing over the plate to prevent electronic equipment to sweep the plate. The legality of these covers varies. Some devices have filtering systems that make avoiding such attempts are not practical, usually with infrared filters.
One of the engineering studies at the University of Illinois, published in 1960, recommended that the state of Illinois adopt a numbering and map design system, “consisting of combinations of characters that can Be perceived quickly and accurately, are readable at a distance of about 125 feet) in daylight conditions, and easily adapt to the presentation and administrative procedures. “He also recommended that a standard size of the plate 6 inches by 14 inches is adopted across the US to replace the size above 6 inches x 12 inches to allow more a record number are displayed without space or characters too thin Or narrow too narrow.