How many taillamps must a passenger car or truck manufactured in 1960 or later be equipped with?

A passenger car or truck manufactured in 1960 or later must be equipped with two taillamps. This requirement serves essential safety purposes by ensuring that vehicles are visible to other drivers during low-light conditions or at night. The presence of two taillamps improves visibility from behind, signaling the vehicle's presence and intentions, such as stopping or turning. This standard is in place to enhance road safety and reduce the likelihood of accidents involving following vehicles. By having two functional taillamps, the likelihood of a single lamp failure compromising a driver's visibility is minimized, contributing to safer driving environments for everyone on the road.