What is required for a driver to legally operate a vehicle with fog or auxiliary lights?

Fog or auxiliary lights are designed to enhance visibility in specific driving conditions, particularly in fog, rain, or snow. The correct answer emphasizes important usage regulations in Tennessee. Specifically, these lights must not be operated alone or in conjunction with high beams. This is because using fog lights with high beams can create glare that obscures visibility for other drivers, as fog lights are aimed lower to illuminate the road immediately in front of the vehicle, while high beams are designed to cast light further down the road.

When fog lights are used correctly, they help drivers see the road better during difficult conditions without causing issues for those traveling in the opposite direction. It is important to utilize fog lights appropriately to maintain safety on the roads for all users.