# Mixing of fissile material packages with non-fissile or fissile-excepted material packages.

- **operation:** document
- **citation:** 49 CFR 173.459
- **title:** Mixing of fissile material packages with non-fissile or fissile-excepted material packages.
- **source type:** regulation
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** current
- **official:** true
- **published on:** Not available
- **effective on:** 2026-08-18
- **summary:** Mixing of fissile material packages with other types of Class 7 (radioactive) materials in any conveyance or storage location is authorized only if the TI of any single package does not exceed 10, the CSI of any single package does not exceed 50, and the provisions of §§ 173.441 and 173.457 are sati
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- **markdown:** https://regulus.evalyn.ai/document/49-cfr-173-459.md
- **app url:** https://regulus.evalyn.ai/document/49-cfr-173-459
- **source url:** https://www.ecfr.gov/on/2026-08-18/title-49/section-173.459
**body:**

Mixing of fissile material packages with other types of Class 7 (radioactive) materials in any conveyance or storage location is authorized only if the TI of any single package does not exceed 10, the CSI of any single package does not exceed 50, and the provisions of §§ 173.441 and 173.457 are satisfied.

[69 FR 3692, Jan. 26, 2004]
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- **body characters:** 335