Portions of the Department of Transportation are currently in shutdown/furlough status due to a lapse in appropriations. Please continue to monitor this page for updates on DOT’s operating status.

Programs and Projects

Call 811 Before You Dig

A check the box diagram.

Check the Box

A pipe with a mountain background.

National Pipeline Mapping System (NPMS)

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Hazardous Materials Outreach and Engagement

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Pipeline Safety Awareness and Outreach

Hazmat placards.

Research and Development

Other Associated Agencies

Pipeline and Hazardous Material Safety Administration (PHMSA)
We are advancing the safe transportation of energy and hazardous materials.

National Transportation Safety Board

Federal Energy Regulatory Commission

United States Coast Guard

Department of Energy

Energy Information Administration

U.S. Environmental Protection Agency

Occupational Safety and Health Administration

International Civil Aviation Organization

International Maritime Organization

International Atomic Energy Agency

Top Links

Hazardous Materials Safety Community Portal

Pipeline Safety Community Portal

Emergency Response Guidebook (ERG)

Data and Statistics

Pipeline and HazMat News

Pipelines and HazMat Regulation

Hazmat Info Center

Connect with PHMSA

A large white pipe.

Learn more about the safe transportation of energy and hazardous materials by contacting the Pipeline and Hazardous Materials Safety Administration (PHMSA) or visiting its website.