What is the minimum visibility requirement for license plate lamps?

The minimum visibility requirement for license plate lamps is set at 50 feet to ensure that the license plate can be clearly seen from that distance. This standard is established to enhance visibility for law enforcement and other drivers, allowing for proper identification of vehicles at night or in low-light conditions. By requiring a visibility range of 50 feet, it ensures that the information displayed on the license plate is legible and distinguishable, which is critical for safety and regulation purposes. Additionally, having a clear visibility requirement helps maintain standards for vehicle equipment, contributing to overall road safety.