How many red lights are required on the rear of second division or combination vehicles?

Second division or combination vehicles are required to have three red lights on their rear. This regulation is in place to ensure visibility and safety while these vehicles are on the road. The three red lights are essential for indicating the size and presence of these vehicles, particularly in low-light conditions or when visibility is reduced. They help other drivers gauge the distance and space needed to safely navigate around larger vehicles. Additionally, having three lights aligns with federal and state regulations that specify lighting requirements for various types of vehicles on public roadways. This standardization improves safety for all road users by reducing the risk of accidents caused by inadequate visibility.