When following another vehicle, what must a Commercial Motor Vehicle (CMV) driver ensure?

The requirement for a Commercial Motor Vehicle (CMV) driver to ensure sufficient space for another vehicle to safely pass is crucial for maintaining safety on the road. This practice allows for better maneuverability for all vehicles and minimizes the risk of accidents during lane changes or merges. When a CMV is following another vehicle, having enough space not only provides a buffer in case the vehicle in front suddenly slows down but also allows other vehicles on the road to safely navigate around the CMV if necessary.

In contrast, while a regular distance of 3-4 car lengths may seem like a reasonable guideline, it is not a universally applicable rule, especially for CMVs, which require more stopping distance due to their size. The visibility of the vehicle's rear lights can aid in maintaining awareness of the vehicle ahead, but it does not address the safety of allowing others to pass. Eliminating distractions in the cab is inherently important for overall driving safety, but it does not specifically address the situational awareness needed when following another vehicle. Therefore, ensuring adequate space for passing is the most effective answer in terms of both safety and compliance with best driving practices.