Each state and U.S. territory has enacted laws governing various driver behaviors, from distracted driving to motorcycle helmet use. Please note that GHSA defers to our State Highway Safety Office members' interpretation of the laws. GHSA's website includes brief, high-level descriptions of each law but state laws may contain different nuances, definitions, exceptions and other differentiating details. For more information, please consult state legislative or traffic safety resources. Select an issue below to view the state laws for that topic.