When is it legal to use a cell phone while driving?

Using a cell phone while driving is legal under certain conditions, and this includes the use of hands-free devices. This option emphasizes that hands-free technology allows drivers to maintain focus on the road while still being able to communicate, reducing the risk of distractions associated with holding a phone. Many states have enacted laws allowing hands-free usage to promote safer driving practices, as it enables drivers to keep both hands on the steering wheel and eyes on the road.

While other options mention scenarios such as emergencies or when the vehicle is stationary, these conditions do not reflect the full scope of hands-free legislation that many states have adopted.