When is it acceptable to use a cell phone while driving a commercial vehicle?

Using a cell phone while driving a commercial vehicle is heavily regulated to ensure safety on the roads. The correct answer highlights the importance of using a hands-free device, which allows a driver to keep their hands on the wheel and their eyes on the road, minimizing distractions.

When utilizing a hands-free device, the driver can maintain conversations without physically handling the phone, which addresses both legal regulations and safety concerns. It is essential to distinguish that the driver must not be actively driving at the time of taking a call, which reinforces that attention should be concentrated on driving when the vehicle is in motion.

This understanding is crucial because it promotes safer driving practices among those operating large or commercial vehicles, where distractions can significantly increase the risk of accidents. The other options reflect practices that do not align with safety regulations and standards set forth for commercial driving.