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Non-radioactive Hazardous Materials (NRHM) Routing

The Non-radioactive Hazardous Materials (NRHM) routing process establishes which roads may be used to transport certain hazardous materials. NRHM routes are typically developed by local jurisdictions (such as a city or county) and must follow the guidelines established by federal regulations. The state rules for designating NRHM routes are in the Texas Administrative Code.

Although TxDOT is responsible for reviewing and approving NRHM routes, we are not involved with issuing permits for the actual movement of hazardous materials. For information on permits, contact the Commercial Vehicle Enforcement Service of the Texas Department of Public Safety at (512) 424-2051. For more information on the development of NHRM routes, please contact us.

NOTE: The accuracy of NRHM route maps is limited to the validity of data as of the date of each map. Please consult the applicable local ordinance or code for more detailed information.

NRHM Route Maps by City and County

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