Amateur radio operators, first responders and
utility workers are among motorists exempted from a new distracted driving law
that took effect in Ohio at the beginning of the year. 
According to Newsline, Ohio’s new law holding a cellphone or similar device in your hand while driving a primary offense, meaning that a police officer may pull you over for that, even if you aren’t doing anything else wrong.
It isn’t clear whether the exemption applies to all devices that an amateur may be using, or only to a non-cellphone radio transceiver.