Highway safety laws differ from state to state. The summary information here can be used to compare laws in specific categories. We monitor legislative changes and update this information as needed.
1The Transportation Commission may establish a maximum speed limit of less than 80 upon any highway or portion of highway under the jurisdiction of the Department of Transportation, and any portion of highway under the jurisdiction of a state or federal agency.
2In South Dakota, learner's permit holders may not drive between 10 p.m. and 6 a.m. unless under the supervision of a parent or guardian.
©1996-2015, Insurance Institute for Highway Safety, Highway Loss Data Institute | www.iihs.org
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