# -26 Stenciling.

- **operation:** document
- **citation:** 49 CFR 179.220-26
- **title:** -26 Stenciling.
- **source type:** regulation
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** current
- **official:** true
- **published on:** Not available
- **effective on:** 2026-08-18
- **summary:** (a) The outer shell, or the jacket if the outer shell is insulated, must be stenciled in compliance with AAR Specifications for Tank Cars, appendix C (IBR, see § 171.7 of this subchapter).

(b) Stenciling must be applied on both sides of the outer shell or jacket near the center in letters and figur
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- **markdown:** https://regulus.evalyn.ai/document/49-cfr-179-220-26.md
- **app url:** https://regulus.evalyn.ai/document/49-cfr-179-220-26
- **source url:** https://www.ecfr.gov/on/2026-08-18/title-49/section-179.220-26
**body:**

(a) The outer shell, or the jacket if the outer shell is insulated, must be stenciled in compliance with AAR Specifications for Tank Cars, appendix C (IBR, see § 171.7 of this subchapter).

(b) Stenciling must be applied on both sides of the outer shell or jacket near the center in letters and figures at least 1 1/2 inches high to indicate the safe upper temperature limit, if applicable, for the inner tank, insulation, and the support system.

[Amdt. 179-9, 36 FR 21343, Nov. 6, 1971, as amended at 68 FR 75763, Dec. 31, 2003]
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- **body characters:** 530