---
kind: "section"
citation: "49 C.F.R. § 192.459"
title: "49"
number: "192.459"
heading: "External corrosion control: Examination of buried pipeline when exposed."
url: "https://uscodex.org/cfr/49/192.459"
---

# §192.459. External corrosion control: Examination of buried pipeline when exposed.


Whenever an operator has knowledge that any portion of a buried pipeline is exposed, the exposed portion must be examined for evidence of external corrosion if the pipe is bare, or if the coating is deteriorated. If external corrosion requiring remedial action under [§§ 192.483 through 192.489](/cfr/49/192.483..192.489.md) is found, the operator shall investigate circumferentially and longitudinally beyond the exposed portion (by visual examination, indirect method, or both) to determine whether additional corrosion requiring remedial action exists in the vicinity of the exposed portion.


## Notes

### Amendments

[Amdt. 192-87, 64 FR 56981, Oct. 22, 1999]

### Source

Source: Amdt. 192-4, 36 FR 12302, June 30, 1971, unless otherwise noted.

### Authority

Authority: 30 U.S.C. 185(w)(3), 49 U.S.C. 5103, 60101 et. seq., and 49 CFR 1.97.

### Source

Source: 35 FR 13257, Aug. 19, 1970, unless otherwise noted.

### Amendments

[Amdt. 192-87, 64 FR 56981, Oct. 22, 1999]