# -12 Gauging devices.

**Citation:** 49 CFR 178.345-12  
**Type / status:** regulation / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2026-08-18  
**Published:** Not stated

Each cargo tank, except a cargo tank intended to be filled by weight, must be equipped with a gauging device that indicates the maximum permitted liquid level to within 0.5 percent of the nominal capacity as measured by volume or liquid level. Gauge glasses are not permitted.

[Amdt. 178-89, 55 FR 3

## Document text

Each cargo tank, except a cargo tank intended to be filled by weight, must be equipped with a gauging device that indicates the maximum permitted liquid level to within 0.5 percent of the nominal capacity as measured by volume or liquid level. Gauge glasses are not permitted.

[Amdt. 178-89, 55 FR 37062, Sept. 7, 1990, as amended by Amdt. 178-118, 61 FR 51342, Oct. 1, 1996]

## Provenance

- Official: Yes
- Source: <https://www.ecfr.gov/on/2026-08-18/title-49/section-178.345-12>
- Source ID: `ecfr`
- SHA-256: `55c5d2f523b56cfb21b7081811035298626e867e93e921eabcbd4e289c349617`
- Retrieved: 2026-08-20T05:46:20.151Z
- Exported: 2026-08-22T04:26:13.701Z
- Document slug: `49-cfr-178-345-12`

### Source metadata

```json
{
  "cfrTitle": 49,
  "part": "178",
  "section": "178.345-12",
  "subpart": "Subpart J—Specifications for Containers for Motor Vehicle Transportation",
  "corpusVersion": "2026-08-18",
  "jurisdiction": "US"
}
```