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.

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

Latest Actions

January 16, 2025

PHMSA Safety Advisory Notice: Counterfeit and Substandard Vehicle Safety Devices

The safety advisory provides notice of the increased circulation of counterfeit and substandard safety devices—e.g., air bag inflators, air bag modules, seatbelt pretensioners, pyromechanical devices, and other supplemental restraint system (SRS)...

January 13, 2025

PHMSA SAFETY ADVISORY: Unsafe Cylinders Being Sold Online by Major Retailers to Consumers and HVAC Contractors

The Pipeline and Hazardous Materials Safety Administration (PHMSA) is issuing this safety advisory notice to request that consumers, retailers, shippers, and DOT-regulated entities ensure their cylinders containing hazardous gases are in compliance...

December 19, 2024

PHMSA Safety Advisory Notice: Required Approval of Bulk Peroxyacetic Acid Shipments

The Pipeline and Hazardous Materials Safety Administration (PHMSA) hereby reminds offerors of bulk shipments of peroxyacetic acid (listed under § 173.225(h)) to seek a required prior approval from the Associate Administrator under § 173.128(d)....

December 9, 2024

Notice Of Enforcement Policy Regarding International Standards

The U.S. Department of Transportation’s Pipeline and Hazardous Materials Safety Administration (PHMSA) understands that many offerors and carriers of hazardous materials in international transport will...

November 26, 2024

PHMSA Considerations for Municipalities for Permitting Operations of Lithium-Ion Battery Powered Micromobility Devices

The use of eBikes, eScooters, and other lithium battery powered micromobility devices are increasingly common. As municipalities permit shared micromobility operations in their jurisdictions, they should be aware of the hazards posed by lithium...

October 25, 2024

Failure Investigation Report - TC Oil Pipeline Operations, Inc.

PHMSA is sharing its Failure Investigation Report following an investigation into TC Oil Operations' December 7, 2022, failure involving its 36-inch Keystone Cushing Extension pipeline rupture in Washington County, Kansas. The failure resulted in an...

October 10, 2024

Emergency Waiver Order #29: Transporting HAZMAT in Hurricane Milton Affected Areas

In accordance with the provisions of 49 U.S.C. § 5103(c), PHMSA's Associate Administrator for the Office of Hazardous Materials Safety declares that an emergency exists that warrants issuance of a Waiver of the Hazardous Materials Regulations (HMR; 49...

October 10, 2024

Emergency Waiver Order #28: Transporting HAZMAT in Hurricane Helene Affected Areas

In accordance with the provisions of 49 U.S.C. § 5103(c), PHMSA's Associate Administrator for the Office of Hazardous Materials Safety declares that an emergency exists that warrants issuance of a Waiver of the Hazardous Materials Regulations (HMR; 49...

October 4, 2024

PHMSA Notice of Enforcement Discretion: Cylinders Exceeding Periodic Requalification Test Dates

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 for filling (during the period of this enforcement discretion)...

April 5, 2024

PHMSA 2021-2022 Expanded Hazmat Supplement Commodity Flow Statistics

PHMSA, in partnership with the U.S. Census Bureau (Census), sponsored an expansion of the 2022 Commodity Flow Survey to include...