# -14 Gauging devices.

- **operation:** document
- **citation:** 49 CFR 178.337-14
- **title:** -14 Gauging devices.
- **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) Liquid level gauging devices. See § 173.315(h) of this subchapter.

(b) Pressure gauges. (1) See § 173.315(h) of this subchapter.

(2) Each cargo tank used in carbon dioxide, refrigerated liquid or nitrous oxide, refrigerated liquid service must be provided with a suitable pressure gauge. A shut
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/49-cfr-178-337-14.json
- **markdown:** https://regulus.evalyn.ai/document/49-cfr-178-337-14.md
- **app url:** https://regulus.evalyn.ai/document/49-cfr-178-337-14
- **source url:** https://www.ecfr.gov/on/2026-08-18/title-49/section-178.337-14
**body:**

(a) Liquid level gauging devices. See § 173.315(h) of this subchapter.

(b) Pressure gauges. (1) See § 173.315(h) of this subchapter.

(2) Each cargo tank used in carbon dioxide, refrigerated liquid or nitrous oxide, refrigerated liquid service must be provided with a suitable pressure gauge. A shut-off valve must be installed between the pressure gauge and the cargo tank.

(c) Orifices. See § 173.315(h) (3) and (4) of this subchapter.

[Amdt. 178-29, 38 FR 27599, Oct. 5, 1973, as amended by Amdt. 178-89, 54 FR 25018, June 12, 1989; Amdt. 178-118, 61 FR 51340, Oct. 1, 1996]
- **truncated:** false
- **body characters:** 580