A similar law takes effect on the 5th of June in Pennsylvania, where drivers will be banned from using handheld mobile devices while behind the wheel of a moving car. As with many distracted-driving laws passed recently, this law also exempts amateur radio operators and emergency responders. The measure is known as Paul Miller’s Law, bearing the name of the 21-year-old man struck and killed by a motorist distracted by a phone in 2010.