# Contamination control.

- **operation:** document
- **citation:** 49 CFR 176.715
- **title:** Contamination control.
- **source type:** regulation
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** current
- **official:** true
- **published on:** Not available
- **effective on:** 2026-08-18
- **summary:** Each hold, compartment, or deck area used for the transportation of low specific activity or surface contaminated object Class 7 (radioactive) materials under exclusive use conditions in accordance with § 173.427(b)(4), or § 173.427(c) must be surveyed with appropriate radiation detection instrument
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/49-cfr-176-715.json
- **markdown:** https://regulus.evalyn.ai/document/49-cfr-176-715.md
- **app url:** https://regulus.evalyn.ai/document/49-cfr-176-715
- **source url:** https://www.ecfr.gov/on/2026-08-18/title-49/section-176.715
**body:**

Each hold, compartment, or deck area used for the transportation of low specific activity or surface contaminated object Class 7 (radioactive) materials under exclusive use conditions in accordance with § 173.427(b)(4), or § 173.427(c) must be surveyed with appropriate radiation detection instruments after each use. Such holds, compartments, and deck areas may not be used again for Class 7 (radioactive) materials exclusive use transport service, and then only for a subsequent exclusive use shipment utilizing the provisions of § 173.427(b)(4), or § 173.427(c) until the radiation dose rate at every accessible surface is less than 0.005 mSv/h (0.5 mrem/h), and the non-fixed contamination is not greater than the limits prescribed in § 173.443(a) of this subchapter.

[79 FR 40618, July 11, 2014]
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