http://www.spokesman.com/stories/2017/apr/20/distracted-drivers-to-face-new-penalties-in-washin/

It would make it illegal to hold a phone or other electronic device while driving a car or when stopped at a traffic light. Some exceptions include contacting emergency services, amateur radio operators or messaging from transit system dispatch services.

This will make it difficult for truckers or NEMT operators to use location based apps to communicate with dispatchers, while they may be the exception to the rule, this looks like a whole lot of trouble coming. This and ELD mandate, safety seems to have its price as well.