# Hazardous Materials: Harmonization with International Standards (RRR)
> **Pipeline and Hazardous Materials Safety Administration** · Rule · Published 2013-02-06 · 78 FR 8431
## Document
- **Document number:** C1-2012-31243
- **Category:** hazmat
- **Sub-agency:** Pipeline and Hazardous Materials Safety Administration
- **Federal Register citation:** 78 FR 8431
- **CFR reference:** 49 CFR 172
- **Publication date:** 2013-02-06
- **DOT docket:** Docket Nos. PHMSA-2012-0027 (HM-215L)
## Source
- [Federal Register document](https://www.federalregister.gov/documents/2013/02/06/C1-2012-31243/hazardous-materials-harmonization-with-international-standards-rrr)
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