# -14 Gauging devices.

**Citation:** 49 CFR 178.337-14  
**Type / status:** regulation / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2026-08-18  
**Published:** Not stated

(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

## Document text

(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]

## Provenance

- Official: Yes
- Source: <https://www.ecfr.gov/on/2026-08-18/title-49/section-178.337-14>
- Source ID: `ecfr`
- SHA-256: `57f3ca5d591588932e2b7501f6cbdd35db0055db72aeb92d34698a3215ef7c16`
- Retrieved: 2026-08-20T05:46:20.151Z
- Exported: 2026-08-22T05:31:31.971Z
- Document slug: `49-cfr-178-337-14`

### Source metadata

```json
{
  "cfrTitle": 49,
  "part": "178",
  "section": "178.337-14",
  "subpart": "Subpart J—Specifications for Containers for Motor Vehicle Transportation",
  "corpusVersion": "2026-08-18",
  "jurisdiction": "US"
}
```