Under what circumstance is it illegal for a driver to use their cellphone in Washington State?

In Washington State, it is illegal for a driver to use their cellphone while driving unless they are using a hands-free device. This law is in place to reduce distractions and enhance road safety. If a driver is holding their phone or operating it in any manner that requires them to take their hands off the wheel or focus their attention away from the road, they are in violation of this law.

The emphasis on using hands-free devices allows drivers to maintain better control of their vehicle while still being able to communicate. The law acknowledges that technology can assist in communication, but prioritizes the safety of all road users by minimizing distractions that could lead to accidents.