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- Query: `76 FR 50332`
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- Exported: 2026-08-22T05:33:46.087Z

## 1. Hazardous Materials Regulations; Compatibility With the Regulations of the International Atomic Energy Agency

**Citation:** 76 FR 50332  
**Type / status:** rulemaking / proposed  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective / published:** Not stated / 2011-08-12

PHMSA, in coordination with the Nuclear Regulatory Commission (NRC), is proposing to amend requirements in the Hazardous Materials Regulations (HMR) governing the transportation of Class 7 (radioactive) materials based on recent changes contained in the International Atomic Energy Agency (IAEA) publication "Regulations for the Safe Transport of Radioactive Material, 2009 Edition, IAEA Safety Standards Series No. TS-R-1" (hereafter referred to as TS-R-1). The purposes of this rulemaking are to harmonize requirements of the HMR with international standards for the transportation of Class 7 (radioactive) materials and update, clarify, correct, or provide relief from certain regulatory requirements applicable to the transportation of Class 7 (radioactive) materials.

### Provenance

- Official: Yes
- Source: <https://www.federalregister.gov/documents/2011/08/12/2011-19872/hazardous-materials-regulations-compatibility-with-the-regulations-of-the-international-atomic>
- Source ID: `federal-register`
- SHA-256: `603590cd6478f1eb2bb72f77201b324cc926c8d8e489e3e77e43477a404bc9c9`
- Retrieved: 2026-08-20T06:04:51.294Z
- Document slug: `federal-register-2011-19872`
- Related records: 75