All agencies USA.gov U.S. Government Manual

Executive

administration

PHMSA

Pipeline and Hazardous Materials Safety Administration (PHMSA)

The Pipeline and Hazardous Materials Safety Administration (PHMSA) regulates the transport of hazardous materials.

This agency rolls up to Department of Transportation (DOT).

0child agencies

2recorded aliases

2official source records

Agency profile

Core identity, hierarchy, and public contact details from the authoritative directory.

Official name: Pipeline and Hazardous Materials Safety Administration
Display name: Pipeline and Hazardous Materials Safety Administration (PHMSA)
Short name: PHMSA
Branch: Executive
Agency type: administration
Phone: 1-202-366-4433
Main address: 1200 New Jersey Ave., SE Washington, DC 20590

Known names and aliases

Alternate names captured from the upstream authoritative sources.

Recent rules and notices

Recent Federal Register items published by this agency. Read the summary here or jump to the raw public record.

Rule

Published April 1, 2026

91 FR 16167

Pipeline Safety: Class Location Change Requirements; Response to Petition for Reconsideration

PHMSA alerts the public to a petition for reconsideration and PHMSA's response.

CFR Title 49, Part 192

Read summary Open source

Official links

Direct links back to government-maintained profiles and agency contact surfaces.

Official website Contact page USA.gov profile U.S. Government Manual

Phone

1-202-366-4433

Main address

1200 New Jersey Ave., SE Washington, DC 20590

Source records

Trace each directory field back to the official federal source that published it.

USA.gov

us_government_manual

Parent listing: Department of Transportation

Hierarchy

This record sits inside a larger federal organization.

Parent agency

Department of Transportation (DOT)

DOT

Notice

Published March 20, 2026

91 FR 13698

Pipeline Safety: Request for Special Permit; Sable Offshore Corp. (Sable)

On February 24, 2026, PHMSA published a notice to solicit public comment on a request for a special permit submitted by Sable Offshore Corp. (Sable). The comment period is currently set to expire on March 26, 2026. PHMSA is issuing this notice to extend the comment period until 14 days from the date of this notice to give the public time to review the proposed special permit in light of recent developments. At the conclusion of the extended comment period, PHMSA will review the comments received from this notice as part of its evaluation to grant or deny the special permit request.

Comment by April 3, 2026

Read summary Open source PDF

Notice

Published March 18, 2026

91 FR 13109

Hazardous Materials: Notice of Actions on Special Permits

In accordance with the procedures governing the application for, and the processing of, special permits from the Department of Transportation's Hazardous Material Regulations, notice is hereby given that the Office of Hazardous Materials Safety has granted or denied the application described herein.

Comment by April 17, 2026

Read summary Open source PDF

Notice

Published March 18, 2026

91 FR 13108

Hazardous Materials: Notice of Applications for Modification to Special Permits

Comment by April 2, 2026

Read summary Open source PDF

Notice

Published March 18, 2026

91 FR 13111

Hazardous Materials: Notice of Applications for New Special Permits

Comment by April 17, 2026

Read summary Open source PDF

Notice

Published March 12, 2026

91 FR 12277

Hazardous Materials: 2026 Hazardous Materials Safety Research, Development, and Technology Forum

The Pipeline and Hazardous Materials Safety Administration's (PHMSA) Office of Hazardous Materials Safety (OHMS) will host a public Research, Development, & Technology Forum (Forum) from March 31-April 2, 2026, in the Washington, DC metropolitan area. More details, to include the location, will be posted on the PHMSA website at the link provided below. The Forum will provide an opportunity for PHMSA-funded research projects to present the results of recently completed or ongoing projects. OHMS will discuss upcoming hazardous materials transportation research project plans and obtain stakeholder input on the direction of OHMS's current and future research projects. Potential topics include: <bullet> Efficient Safety Standards <bullet> Risk Reduction for Emergency Response <bullet> Safe Energy Storage Technologies <bullet> Innovative Packaging During the Forum, OHMS will host subject matter experts to discuss a variety of topics affecting the hazardous materials transportation industry. Additionally, OHMS will solicit input and feedback related to potential research topics that may be considered for future work and gather and review research need statements from industry, academia, and other stakeholders. The Forum actively will encourage the identification of critical research gaps in hazardous materials transportation to ensure the transportation community's evolving needs are addressed while advancing the U.S. Department of Transportation's strategic priorities--Safety, Infrastructure Investment, Innovation, and System Efficiency.

Read summary Open source PDF