# -15 Radioscopy.

- **operation:** document
- **citation:** 49 CFR 179.400-15
- **title:** -15 Radioscopy.
- **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 longitudinal and circumferential joint of the inner tank, and each longitudinal and circumferential double welded butt joint of the outer jacket, must be examined along its entire length in accordance with the requirements of AAR Specifications for Tank Cars, appendix W (IBR, see § 171.7 of thi
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- **markdown:** https://regulus.evalyn.ai/document/49-cfr-179-400-15.md
- **app url:** https://regulus.evalyn.ai/document/49-cfr-179-400-15
- **source url:** https://www.ecfr.gov/on/2026-08-18/title-49/section-179.400-15
**body:**

Each longitudinal and circumferential joint of the inner tank, and each longitudinal and circumferential double welded butt joint of the outer jacket, must be examined along its entire length in accordance with the requirements of AAR Specifications for Tank Cars, appendix W (IBR, see § 171.7 of this subchapter).

[68 FR 75763, Dec. 31, 2003]
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- **body characters:** 344