USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Site Notification

Site Notification

The latest general information on the Coronavirus (COVID-19) is available on Coronavirus.gov. For PHMSA contact information during the COVID-19 health emergency, please visit our page.

U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

Latest Actions

January 11, 2022

PHMSA Notice of Enforcement Discretion Regarding Cylinders Exceeding Periodic Requalification Testing Dates - January 2022

The U.S. Department of Transportation’s Pipeline and Hazardous Materials Safety Administration (PHMSA) is providing notice that it will not take enforcement action against any person who fills a DOT-specification cylinder used to transport Division 2....

October 21, 2021

PHMSA Pipeline Transportation and Emerging Fuels R&D Public Meeting and Forum

From November 30 through December 2, 2021, PHMSA will hold a virtual Pipeline Transportation and Emerging Fuels R&D Public Meeting and Forum.  The public meeting and forum will serve as an opportunity for pipeline stakeholders to discuss research...

September 15, 2021

Lithium Battery Air Safety Advisory Committee

This meeting will be held virtually. Please monitor this website for forthcoming meeting details. You may also review the Federal Register Notice for additional information.
September 13, 2021

PHMSA Reinstates Enforcement Discretion for Cylinders Exceeding Periodic Testing Dates – Sept. 2021

The COVID-19 public health emergency, in addition to naturally occurring events such as Hurricane Ida, continue to provide challenges for gas cylinder exchanges to receive and distribute cylinders that can be filled in accordance with the...

August 28, 2021

PHMSA Actions to Assist with Hurricane Ida Preparedness and Response Efforts

PHMSA is continuing to monitor the movements of Hurricane Ida to understand its potential effects on hazardous materials and pipeline operations.  This webpage provides critical information regarding PHMSA's pipeline and hazardous materials safety...

July 16, 2021

Broad Agency Announcement 2021

In this Broad Agency Announcement (BAA), the Office of Hazardous Materials Safety (OHMS) of PHMSA solicits concepts which could eventually lead to...