What color is the rear license plate lamp required to be?

The rear license plate lamp is required to be white for visibility and safety reasons. A white light effectively illuminates the license plate, ensuring that it can be clearly read by other drivers and law enforcement, especially at night or in low-light conditions. This requirement is standard across most jurisdictions because it enhances the identification of the vehicle on the road.

Using other colors, such as red or yellow, would not provide the same level of clarity and could potentially confuse other drivers, as these colors can signal different meanings (such as brake lights or hazard signals). Thus, the choice of white aligns with safety regulations and best practices in vehicle lighting.