What minimum lighting is required for a farm tractor manufactured or assembled after January 1, 1972?

For a farm tractor manufactured or assembled after January 1, 1972, the minimum lighting requirement includes the provision of two head lamps. This is essential for ensuring visibility and safety during operation, especially in low light conditions or at night. The use of two head lamps enhances visibility from both sides of the vehicle, which is particularly important on roadways where larger agricultural equipment shares space with other motor vehicles.

While other lighting components like tail-lights and reflectors are important for overall safety and compliance with regulations, the specification of two head lamps is a critical requirement designed to provide adequate illumination for the operator and to signal presence to other drivers. In this context, the correct answer highlights the importance of having effective front lighting on farm tractors to mitigate the risk of accidents.