49 CFR 192.475
§ 192.475 Internal corrosion control: General.
United States · 49 CFR — Transportation · Status: effective
Cite this
- Citation
- 49 CFR 192.475, § 192.475 Internal corrosion control: General, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/257161
- Permanent ID
ys:prov:257161@1- SHA-256
e8e5dd91f3cbcda3404f94849a0ca03296ee60ae2b20ab65651f9d8868ce51da
The hash is SHA-256 of this version's text, with every run of whitespace collapsed to a single space and the ends trimmed. The ID always leads back here, and checking it says whether the text you cited is still the current version.
Full text
(a) Corrosive gas may not be transported by pipeline, unless the corrosive effect of the gas on the pipeline has been investigated and steps have been taken to minimize internal corrosion.
(b) Whenever any pipe is removed from a pipeline for any reason, the internal surface must be inspected for evidence of corrosion. If internal corrosion is found—
(1) The adjacent pipe must be investigated to determine the extent of internal corrosion;
(2) Replacement must be made to the extent required by the applicable paragraphs of §§ 192.485, 192.487, or 192.489; and
(3) Steps must be taken to minimize the internal corrosion.
(c) Gas containing more than 0.25 grain of hydrogen sulfide per 100 cubic feet (5.8 milligrams/m .3) at standard conditions (4 parts per million) may not be stored in pipe-type or bottle-type holders.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.