Roundabouts have caught on in the United States at such a pace that it is impossible to keep this page current.

For up-to-date information, we suggest you contact the Department of Transportation for a particular state.

Many state DOT’s can be reached at the generic address: www.dot.state.(insert the two-letter state abbreviation) us.

For example:

www.dot.state.ak.us
www.dot.state.mn.us
www.dot.state.wi.us