What is required for taillights on vehicles?

The requirement for taillights on vehicles to be visible from at least 500 feet is critical for ensuring safety on the road. This visibility distance helps to alert drivers from a substantial range, especially in conditions of low light or poor visibility such as at night, during inclement weather, or in fog. Being visible from this distance allows other drivers to gauge the position and speed of a vehicle, thereby reducing the likelihood of rear-end collisions.

While other factors, such as the operation of taillights when headlights are on or the need to illuminate a rear license plate, contribute to vehicle safety, the primary focus of visibility at a distance is essential for overall roadway safety regulations. It ensures that vehicles can be seen effectively by others, enhancing traffic safety for all road users.