What color must license plate lights be, according to traffic regulations?

License plate lights must be white according to traffic regulations. This requirement is in place to ensure that the license plate is clearly visible at night or in low-light conditions. The use of white lights enhances readability and helps law enforcement and other road users easily identify vehicles by their license plates, which is crucial for safety and accountability on the roads. Brightness and color consistency are important in maintaining visibility standards for vehicle identification, which is why white is specified as the standard color for license plate illumination. Other colors, such as red or amber, could reduce visibility or cause confusion regarding the vehicle's status or movements, which is why they are not permitted for this purpose.