# Hazardous Materials: Harmonization With International Standards

**Action Urgency Score:** 35/100

| Field | Value |
|---|---|
| Agency | Transportation Department; Pipeline and Hazardous Materials Safety Administration |
| Type | Proposed rule |
| Action | Notice of proposed rulemaking (NPRM). |
| Published | 2026-10-27 |
| Comments close | 2026-12-28 |
| Significant | No |
| CFR parts | 49 CFR 171, 49 CFR 172, 49 CFR 173, 49 CFR 175, 49 CFR 176 |
| Summary | PHMSA proposes to update the Hazardous Materials Regulations to adopt certain international regulations and standards related to proper shipping names, hazard classes, packing groups, special provisions, packaging authorizations, air transport quantity limitations, and vessel stowage requirements. These proposed amendments are intended to maintain consistency with the latest international regulations and standards, to reduce costs to entities or individuals within the United States, and to lower the cost of regulations on the U.S. economy. |
| Document number | 2026-21922 |

## Why this score
- Upcoming deadline.

Source: Federal Register API (Office of the Federal Register) (https://www.federalregister.gov/documents/2026/10/27/2026-21922/hazardous-materials-harmonization-with-international-standards). Last refreshed: 2026-11-04T21:40:49.974Z.
Data from the Federal Register API; the published Federal Register document is authoritative. Informational only, not legal advice.