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.

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

United States Department of Transportation United States Department of Transportation

Latest Actions

June 16, 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.
May 19, 2021

Notice to Pipeline, Underground Storage, and LNG Facility Operators Regarding the Termination of PHMSA's March 2020 Stay of Enforcement and Notice of Enforcement Discretion

This Notice of Termination advises pipeline, underground storage, and liquefied natural gas facility operators that PHMSA's March 20, 2020 Stay of Enforcement and Notice of Enforcement Discretion will expire on May 26, 2021.

See the ...

March 4, 2021

PHMSA Notice of Administrative Discretion and Guidance for Renewal of RIN Approvals During the COVID-19 Public Health Emergency

In order to inspect, test, certify, repair, or rebuild certain types of cylinders and pressure receptacles, a person must be approved by PHMSA.  Travel restrictions and quarantine requirements imposed by various government agencies during the COVID-19...

January 15, 2021

PHMSA Proposed Rule: Periodic Updates of Regulatory References to Technical Standards and Miscellaneous Amendments - Pipeline Safety

The notice of proposed rulemaking (NPRM) published today would incorporate by reference new, updated, or reaffirmed editions of more than 20 consensus standards into the Federal pipeline safety regulations.
January 12, 2021

PHMSA Safety Advisory Notice: Special Permits for Composite Gas Cylinders

On March 3, 2020, the Pipeline and Hazardous Materials Safety Administration (PHMSA) conducted an Investigative Hearing in response to incidents and roll-over crashes associated with operations using packagings authorized under certain Hazardous...
December 30, 2020

PHMSA Notice of Enforcement Discretion for Cylinders Exceeding Periodic Testing Dates – Dec 2020

The COVID-19 public health emergency continues to provide challenges for gas cylinder exchanges to receive and distribute cylinders that can be filled in accordance with the requalification requirements included in the Federal Hazardous Materials...