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

News

96

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 Materials Special Permits for the manufacture, mark,...

Safety Advisory Notice: Special Permits for Composite Gas Cylinders

The Safety Advisory Notice provides recommendations to help facilitate the safe transportation of compressed natural gas under the terms of specific Hazardous Materials Special Permits authorizing the manufacture, mark, sale, and use of non-DOT specification fully wrapped reinforced composite...