Under what circumstance is it legal to use a cell phone while driving?

Using a cell phone in hands-free mode while using a headset or Bluetooth is legal while driving because it allows the driver to maintain focus on the road while still being able to communicate. Hands-free devices minimize distractions by enabling voice commands, reducing the need for manual interaction with the phone, and keeping the driver's hands on the wheel. This practice aligns with safety regulations designed to limit the risks associated with distracted driving, as it allows for safer communications.

In contrast, other scenarios may lead to distractions or unsafe driving practices. Using a cell phone for navigation, while often considered safer than texting or calling, might still lead to distractions if the driver needs to frequently adjust the device or glance away from the road for directions. Stopping at a stoplight does not exempt a driver from general laws against using a cell phone, as it can still divert attention and invites temptation to engage in other distracting behaviors. Finally, driving slowly in traffic, while it might seem safer, does not justify cell phone use since distractions can still impair the driver's ability to react quickly in critical situations.