# External corrosion control: Test leads.

**Citation:** 49 CFR 192.471  
**Type / status:** regulation / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2026-08-18  
**Published:** Not stated

(a) Each test lead wire must be connected to the pipeline so as to remain mechanically secure and electrically conductive.

(b) Each test lead wire must be attached to the pipeline so as to minimize stress concentration on the pipe.

(c) Each bared test lead wire and bared metallic area at point of 

## Document text

(a) Each test lead wire must be connected to the pipeline so as to remain mechanically secure and electrically conductive.

(b) Each test lead wire must be attached to the pipeline so as to minimize stress concentration on the pipe.

(c) Each bared test lead wire and bared metallic area at point of connection to the pipeline must be coated with an electrical insulating material compatible with the pipe coating and the insulation on the wire.

## Provenance

- Official: Yes
- Source: <https://www.ecfr.gov/on/2026-08-18/title-49/section-192.471>
- Source ID: `ecfr`
- SHA-256: `c44d273154c13821b20914e90b10a91a14df62e770bcfe793544bf36e0ae8ab1`
- Retrieved: 2026-08-20T05:54:34.435Z
- Exported: 2026-08-23T15:22:50.148Z
- Document slug: `49-cfr-192-471`

### Source metadata

```json
{
  "cfrTitle": 49,
  "part": "192",
  "section": "192.471",
  "subpart": "Subpart I—Requirements for Corrosion Control",
  "corpusVersion": "2026-08-18",
  "jurisdiction": "US"
}
```