In 2017, HCPA and allied trade associations submitted a petition to the Department of Transportation (DOT) Pipeline and Hazardous Materials Safety Administration (PHMSA) to harmonize the definition of an aerosol within the U.S. Hazardous Materials Regulation (HMR) with the UN Model Regulations (UNMR).

In February of this year, PHMSA’s Office of Hazardous Materials Safety (OHMS) contracted Cambridge Systematics to conduct a risk assessment for the transportation of aerosol products. This evaluation will include a literature review, a supply chain analysis, outreach to industry stakeholders, and a risk analysis for potential consequences involving the transport of aerosols.

HCPA will continue to play an active role in this project by overseeing member companies’ needs and concerns related to the assessment, which is expected to conclude in the first quarter of 2020.

Please contact Nicholas Georges, Director, Scientific & International Affairs, at for additional comments or questions.


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