What type of lights are required on vehicles in a funeral procession?

In a funeral procession, the use of both flashing hazard lights and regular lights is crucial for signaling the nature of the event to other drivers on the road. Flashing hazard lights alert other motorists that the vehicles in the procession are part of a special event, indicating that they should yield or exercise caution. Using regular lights, such as headlights, helps to increase visibility, especially during low-light conditions or inclement weather. This combination enhances safety for all involved, as it makes the procession more visible to other drivers, helps to keep the vehicles together, and conveys an understanding of the somber nature of the event.

Other options, such as using only headlights or only taillights, would not provide adequate visibility or communication to other road users about the procession. Similarly, relying solely on high or low beam headlights does not incorporate the necessary signaling that flashing hazard lights provide, which is essential for maintaining the safety and integrity of the funeral procession.