# Test pressure.

**Citation:** 49 CFR 195.304  
**Type / status:** regulation / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2026-08-18  
**Published:** Not stated

The test pressure for each pressure test conducted under this subpart must be maintained throughout the part of the system being tested for at least 4 continuous hours at a pressure equal to 125 percent, or more, of the maximum operating pressure and, in the case of a pipeline that is not visually i

## Document text

The test pressure for each pressure test conducted under this subpart must be maintained throughout the part of the system being tested for at least 4 continuous hours at a pressure equal to 125 percent, or more, of the maximum operating pressure and, in the case of a pipeline that is not visually inspected for leakage during the test, for at least an additional 4 continuous hours at a pressure equal to 110 percent, or more, of the maximum operating pressure.

[Amdt. 195-51, 59 FR 29384, June 7, 1994. Redesignated by Amdt. 195-65, 63 FR 59480, Nov. 4, 1998]

## Provenance

- Official: Yes
- Source: <https://www.ecfr.gov/on/2026-08-18/title-49/section-195.304>
- Source ID: `ecfr`
- SHA-256: `b15988f3221f31892e2baa116f1731df044df2b753b17a8b3e058943397a0968`
- Retrieved: 2026-08-20T05:54:41.219Z
- Exported: 2026-08-23T21:17:36.459Z
- Document slug: `49-cfr-195-304`

### Source metadata

```json
{
  "cfrTitle": 49,
  "part": "195",
  "section": "195.304",
  "subpart": "Subpart E—Pressure Testing",
  "corpusVersion": "2026-08-18",
  "jurisdiction": "US"
}
```