https://www.knoxnews.com/story/news/...an/1440405001/
It makes it an offense to have a phone in your hand while driving. Every day that I commute I see people on their phones talking or checking things. Some find the law too extreme, but when operating a motor vehicle one should always be focused entirely on doing so in an aware and safe manner. At least IMHO.
ETA... Tennessee leads the country in distract5ed driver related crashes with 37,000 in 2018.