The Federal Motor Carrier Safety Administration has published a new listing of restricted, designated, and preferred road and highway routes for transporting radioactive and non-radioactive hazardous materials.

Federal law requires the U.S. Department of Transportation, in coordination with the states and Indian tribes, to periodically update and publish a list of hazardous materials highway routing designations and restrictions.
The route listings and maps can be accessed on the Internet at the National Hazardous Material Route Registry,