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.
Source
https://www.federalregister.gov/documents/2026/08/04/2026-15803/hazardous-materials-reducing-burdens-on-domestic-aerosol-shippersCanonical document at the regulator. Always cite this URL — not the Vantage detail page — in compliance evidence.