# -3 Manhole assemblies.

**Citation:** 49 CFR 178.347-3  
**Type / status:** regulation / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2026-08-18  
**Published:** Not stated

Each manhole assembly must conform to § 178.345-5, except that each manhole assembly must be capable of withstanding internal fluid pressures of 40 psig or test pressure of the tank, whichever is greater.

[Amdt. 178-89, 54 FR 25030, June 12, 1989. Redesignated by Amdt. 178-112, 61 FR 18934, Apr. 29

## Document text

Each manhole assembly must conform to § 178.345-5, except that each manhole assembly must be capable of withstanding internal fluid pressures of 40 psig or test pressure of the tank, whichever is greater.

[Amdt. 178-89, 54 FR 25030, June 12, 1989. Redesignated by Amdt. 178-112, 61 FR 18934, Apr. 29, 1996]

## Provenance

- Official: Yes
- Source: <https://www.ecfr.gov/on/2026-08-18/title-49/section-178.347-3>
- Source ID: `ecfr`
- SHA-256: `6bc99d68b4c2dabb78f7c1e00453c1a9cd933e2f56f78a14c8e51274baca65ca`
- Retrieved: 2026-08-20T05:46:20.151Z
- Exported: 2026-08-22T01:10:26.030Z
- Document slug: `49-cfr-178-347-3`

### Source metadata

```json
{
  "cfrTitle": 49,
  "part": "178",
  "section": "178.347-3",
  "subpart": "Subpart J—Specifications for Containers for Motor Vehicle Transportation",
  "corpusVersion": "2026-08-18",
  "jurisdiction": "US"
}
```