Standards & Rulemaking

International Standards

About International Standards

PHMSA participates in a number of international forums as part of the ongoing process of harmonizing the U.S. Hazardous Materials Regulations (HMR) with international standards and regulations. Participation ensures that U.S. interests are communicated and considered in the development of international standards. Public comments on positions taken and the outcome of these meetings are solicited through public meetings, outreach activities, and through a number of other media including this page. The objective is to establish and maintain a global regulatory system for hazardous materials transportation that will enhance the safe, secure, and efficient movement of hazardous materials. Harmonization of international and domestic standards enhances compliance and improves the efficiency of the transportation system by minimizing the regulatory burden on the public.

Public Meetings

The announcements below provide information on public meetings that are hosted by PHMSA's Office of International Standards for purposes of ensuring that US positions taken at international meetings are coordinated with DOT stakeholders. Federal register notices are published prior to public meetings conducted by the Office of International Standards.

Background information on the public meetings in preparation for the 45th Session of the United Nations Transport of Dangerous Goods Sub-Committee of Experts on the Transport of Dangerous Goods (UN TDG SCOE) and the 27th Session of the United Nations Sub-Committee of Experts on the Globally Harmonized System of Classification and Labelling of Chemicals (UNSCEGHS) can be found in the Federal Register.

Click here for specific information (including Conference Call Capability & Live Meeting Attendee) for the public meeting in preparation for the 27th Session

Click here for specific information (including Conference Call Capability & Live Meeting Attendee) for the public meeting in preparation for the 45th Session