# -11 Insulation.

- **operation:** document
- **citation:** 49 CFR 179.201-11
- **title:** -11 Insulation.
- **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) Insulation shall be of sufficient thickness so that the thermal conductance at 60 °F. is not more than 0.075 Btu per hour, per square foot, per degree F. temperature differential.

(b) [Reserved]
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/49-cfr-179-201-11.json
- **markdown:** https://regulus.evalyn.ai/document/49-cfr-179-201-11.md
- **app url:** https://regulus.evalyn.ai/document/49-cfr-179-201-11
- **source url:** https://www.ecfr.gov/on/2026-08-18/title-49/section-179.201-11
**body:**

(a) Insulation shall be of sufficient thickness so that the thermal conductance at 60 °F. is not more than 0.075 Btu per hour, per square foot, per degree F. temperature differential.

(b) [Reserved]
- **truncated:** false
- **body characters:** 199