# -6 Loading and unloading accessories.

- **operation:** document
- **citation:** 49 CFR 178.255-6
- **title:** -6 Loading and unloading accessories.
- **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) When installed, gauging, loading and air inlet devices, including their valves, shall be provided with adequate means for their secure closure; and means shall also be provided for the closing of pipe connections of valves.

(b) Interior heater coils, if installed, must be of extra heavy pipe an
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- **markdown:** https://regulus.evalyn.ai/document/49-cfr-178-255-6.md
- **app url:** https://regulus.evalyn.ai/document/49-cfr-178-255-6
- **source url:** https://www.ecfr.gov/on/2026-08-18/title-49/section-178.255-6
**body:**

(a) When installed, gauging, loading and air inlet devices, including their valves, shall be provided with adequate means for their secure closure; and means shall also be provided for the closing of pipe connections of valves.

(b) Interior heater coils, if installed, must be of extra heavy pipe and so constructed that breaking off of exterior connections will not cause leakage of tanks.
- **truncated:** false
- **body characters:** 391