Introduction

The Texas Department of Transportation (TxDOT) is the state routing agency in charge of approving all non-radioactive hazardous materials (NRHM) routes in Texas. A statewide listing of NRHM routes and maps showing the limits of these routes is available online on the
Non-Radioactive Hazardous Materials Routing Publications page
of the TxDOT website.
The Texas Department of State Health Services is responsible for radioactive hazardous materials routing. Inquiries and requests for licensing may be forwarded to (512) 834-6770.