# -14 Openings in the tanks.

- **operation:** document
- **citation:** 49 CFR 179.220-14
- **title:** -14 Openings in the tanks.
- **source type:** regulation
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** current
- **official:** true
- **published on:** Not available
- **effective on:** 2026-08-18
- **summary:** Openings in the inner container and the outer shell must be reinforced in compliance with AAR Specifications for Tank Cars, appendix E (IBR, see § 171.7 of this subchapter). In determining the required reinforcement area for openings in the outer shell, t shall be one-fourth inch.

[68 FR 75763, Dec
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- **app url:** https://regulus.evalyn.ai/document/49-cfr-179-220-14
- **source url:** https://www.ecfr.gov/on/2026-08-18/title-49/section-179.220-14
**body:**

Openings in the inner container and the outer shell must be reinforced in compliance with AAR Specifications for Tank Cars, appendix E (IBR, see § 171.7 of this subchapter). In determining the required reinforcement area for openings in the outer shell, t shall be one-fourth inch.

[68 FR 75763, Dec. 31, 2003]
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- **body characters:** 311