A vehicle's rear license plate must be clearly visible from a distance of __________ feet from the rear.

The requirement that a vehicle's rear license plate must be clearly visible from a distance of 50 feet ensures that law enforcement and other drivers can easily identify the vehicle, which is important for safety and regulation purposes. This visibility standard is set to help in situations where identification is necessary, such as for traffic enforcement or during incidents. Unlike some shorter distance requirements, which may be too lax and not ensure effective visibility, the standard of 50 feet strikes an appropriate balance, making it feasible for practical identification without causing undue difficulty for the vehicle owner. Establishing this requirement underscores the importance of proper vehicle registration identification and promotes compliance with the law.