On November 01, 2019 (84 FR 58829), the Pipeline and Hazardous Material Safety Administration (PHMSA) published a notice in the federal register issuing a safety advisory to inform the public, industrial gas stakeholders and relevant government officials of the risks associated with requalifying, filling, and transporting cylinders bearing the DOT specification markings “DOT 4E” or “DOT 4BA” that were produced by a company located in Thailand by the name of Metal Mate. Metal Mate does not have an approval from PHMSA to manufacture cylinders to DOT specifications; therefore, cylinders marked with the “Metal Mate” name or the “MM” logo are not DOT specification cylinders. They must not be used to transport hazardous materials in commerce to, from or within the United States, or on a United States-registered aircraft. These cylinders may not perform to the marked DOT performance standard and may not be safe for commercial transportation or consumer use.

Click on the link below to download the full version:

PHMSA 11-01-2019 Metal Mate cylinder safety notice