According to transportation regulations, a vehicle must have its head and tail lamps visible from how far away at night?

The correct distance for head and tail lamps to be visible at night according to transportation regulations is indeed 500 feet. This requirement is in place to ensure that vehicles are adequately seen by other road users in low-light conditions, enhancing safety on the roads. The visibility of lights from this distance allows for sufficient reaction time for drivers approaching from behind or in front, helping to prevent accidents.

Other choices present different distances, but none meet the regulatory standard that mandates the visibility of both head and tail lamps at night. The specification of 500 feet is a well-established guideline in transportation codes, aimed at ensuring that vehicles are clearly distinguished during nighttime driving, which is paramount for overall traffic safety.