# Transmission lines: Permanent field repair of imperfections and damages.

**Citation:** 49 CFR 192.713  
**Type / status:** regulation / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2026-08-18  
**Published:** Not stated

(a) Each imperfection or damage that impairs the serviceability of pipe in a steel transmission line operating at or above 40 percent of SMYS must be—

(1) Removed by cutting out and replacing a cylindrical piece of pipe; or

(2) Repaired by a method that reliable engineering tests and analyses show

## Document text

(a) Each imperfection or damage that impairs the serviceability of pipe in a steel transmission line operating at or above 40 percent of SMYS must be—

(1) Removed by cutting out and replacing a cylindrical piece of pipe; or

(2) Repaired by a method that reliable engineering tests and analyses show can permanently restore the serviceability of the pipe.

(b) Operating pressure must be at a safe level during repair operations.

[Amdt. 192-88, 64 FR 69665, Dec. 14, 1999]

## Provenance

- Official: Yes
- Source: <https://www.ecfr.gov/on/2026-08-18/title-49/section-192.713>
- Source ID: `ecfr`
- SHA-256: `7d04b27a66a26b5d7ac7df5240138b8a1c8ef9cf10e77d7f29cefeb6ef343933`
- Retrieved: 2026-08-20T05:54:34.435Z
- Exported: 2026-08-25T00:42:58.637Z
- Document slug: `49-cfr-192-713`

### Source metadata

```json
{
  "cfrTitle": 49,
  "part": "192",
  "section": "192.713",
  "subpart": "Subpart M—Maintenance",
  "corpusVersion": "2026-08-18",
  "jurisdiction": "US"
}
```