Hazardous Materials: Reducing Burdens on Domestic Aerosol Shippers
Key claim: PHMSA is amending the Hazardous Materials Regulations to update the definition of an aerosol, reducing unnecessary burdens on domestic shippers and aligning with international transportation standards.
Abstract
(Rule · Transportation Department, Pipeline and Hazardous Materials Safety Administration) PHMSA is amending the Hazardous Materials Regulations by updating the definition of an aerosol to eliminate unnecessary regulatory burdens and maintain consistency with current international transportation standards.
Why this matters
Aerosol classification governs packaging, marking, and mode-specific handling requirements across trucking, rail, air, and vessel shipments of consumer and industrial products. Aligning the U.S. aerosol definition with international standards reduces reclassification friction for cross-border shippers while preserving the safety framework of the HMR.