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

Hazardous Materials: Safety Device Classification Policy

This Notice details what PHMSA will consider when reviewing an approval request to reclassify a material as a Class 9 safety device. Further, it establishes a policy for classifying subcomponents of existing safety devices as safety devices in their own right.  It further states that PHMSA will balance the potential safety benefits to persons in vehicles, vessels or aircraft with the potential danger posed by shipping explosive materials that are not incorporated in a larger component device.   

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Effective Date: Thursday, October 13, 2022
Issued Date: Thursday, October 13, 2022