Each state defines its traffic laws, so what you might do legally in one state, such as talk on a hand-held cell phone, could get you pulled over and cited in another. The penalties for violations also differ by state, sometimes greatly, so it behooves travelers to be aware of the rules and enforcement policies for their state. The laws listed here are the most likely to vary from neighboring states...
Each state defines its traffic laws, so what you might do legally in one state, such as talk on a hand-held cell phone, could get you pulled over and cited in another. The penalties for violations also differ by state, sometimes greatly, so it behooves travelers to be aware of the rules and enforcement policies for their state. The laws listed here are the most likely to vary from neighboring states.