When transporting a load at night that extends four feet or more at the rear, what must be at the extreme end of the load?

When transporting a load that extends four feet or more at the rear during nighttime, it is essential to have red lights at the extreme end of the load. This requirement helps to ensure visibility and safety on the road. Red lights serve as a warning signal to other drivers, indicating the presence of an overhanging load and providing a clear indication of the boundaries of the vehicle and its load.

The use of red lights is a standard safety measure as they are universally recognized as indicators of caution. This practice minimizes the risk of accidents and enhances the awareness of other road users, especially in low-light conditions when the visibility of the load may be compromised.

While options such as reflective tape and flashing lights can enhance visibility, they do not serve the specific function that red lights provide in this context. Reflective tape is useful for increasing visibility but does not provide active signaling like lights do, and flashing lights, while also attention-grabbing, are not the specific requirement for the rear of an extending load at night. White lights are typically used for illumination purposes and do not serve as a warning signal for an overhanging load.