# Test requirements for pipelines to operate below 100 p.s.i. (689 kPa) gage.

**Citation:** 49 CFR 192.509  
**Type / status:** regulation / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2026-08-18  
**Published:** Not stated

Except for service lines and plastic pipelines, each segment of a pipeline that is to be operated below 100 p.s.i. (689 kPa) gage must be leak tested in accordance with the following:

(a) The test procedure used must ensure discovery of all potentially hazardous leaks in the segment being tested.



## Document text

Except for service lines and plastic pipelines, each segment of a pipeline that is to be operated below 100 p.s.i. (689 kPa) gage must be leak tested in accordance with the following:

(a) The test procedure used must ensure discovery of all potentially hazardous leaks in the segment being tested.

(b) Each main that is to be operated at less than 1 p.s.i. (6.9 kPa) gage must be tested to at least 10 p.s.i. (69 kPa) gage and each main to be operated at or above 1 p.s.i. (6.9 kPa) gage must be tested to at least 90 p.s.i. (621 kPa) gage.

[35 FR 13257, Aug. 19, 1970, as amended by Amdt. 192-58, 53 FR 1635, Jan. 21, 1988; Amdt. 192-85, 63 FR 37504, July 13, 1998]

## Provenance

- Official: Yes
- Source: <https://www.ecfr.gov/on/2026-08-18/title-49/section-192.509>
- Source ID: `ecfr`
- SHA-256: `658c63b2e906cd011580ec326740280f1ac0f08b33d15e470a10a0a7db307f0b`
- Retrieved: 2026-08-20T05:54:34.435Z
- Exported: 2026-08-23T23:15:39.676Z
- Document slug: `49-cfr-192-509`

### Source metadata

```json
{
  "cfrTitle": 49,
  "part": "192",
  "section": "192.509",
  "subpart": "Subpart J—Test Requirements",
  "corpusVersion": "2026-08-18",
  "jurisdiction": "US"
}
```