# Hazardous Materials: Harmonization with International Standards
> **Pipeline and Hazardous Materials Safety Administration** · Rule · Published 2024-05-13 · 89 FR 41331
## Document
- **Document number:** C1-2024-06956
- **Category:** hazmat
- **Sub-agency:** Pipeline and Hazardous Materials Safety Administration
- **Federal Register citation:** 89 FR 41331
- **CFR reference:** 49 CFR 171
- **Publication date:** 2024-05-13
- **DOT docket:** Docket No. PHMSA-2021-0092 (HM-215Q)
## Source
- [Federal Register document](https://www.federalregister.gov/documents/2024/05/13/C1-2024-06956/hazardous-materials-harmonization-with-international-standards)
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