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Southwest Region

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About the Office

The Southwest Regional Office, based in Houston, Texas, is comprised of personnel from the Office of Hazardous Materials Safety and the Office of Pipeline Safety. The offices are charged with overseeing the safe and secure movement of daily shipments of hazardous materials by all modes of transportation, as well as ensuring the safe, reliable, and environmentally sound operation so of the nation's pipeline infrastructure.

The area of responsibility for this region is listed below; however, the jurisdiction of PHMSA staff is nationwide and not limited to their regional area of responsibility.

States: Arkansas, Louisiana, New Mexico, Oklahoma, and Texas

Contact Information

Southwest Region Contact Information
PHMSA Hazardous Materials Safety
Southwest Region Office
PHMSA Pipeline Safety
Central Region Office
8701 S. Gessner Road, Suite 900
Houston, TX 77074
713-272-2821 (Fax)
8701 S. Gessner Road, Suite 630
Houston, TX 77074
713-272-2831 (Fax)


Southwest Region Management
PHMSA Hazardous Materials Safety
Southwest Region Enforcement Office
PHMSA Pipeline Safety
Southwest Region Office
Updated: Wednesday, October 31, 2018