# Internal corrosion control.

- **operation:** document
- **citation:** 49 CFR 193.2631
- **title:** Internal corrosion control.
- **source type:** regulation
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** current
- **official:** true
- **published on:** Not available
- **effective on:** 2026-08-18
- **summary:** Each component that is subject to internal corrosive attack must be protected from internal corrosion by—

(a) Material that has been designed and selected to resist the corrosive fluid involved; or

(b) Suitable coating, inhibitor, or other means.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/49-cfr-193-2631.json
- **markdown:** https://regulus.evalyn.ai/document/49-cfr-193-2631.md
- **app url:** https://regulus.evalyn.ai/document/49-cfr-193-2631
- **source url:** https://www.ecfr.gov/on/2026-08-18/title-49/section-193.2631
**body:**

Each component that is subject to internal corrosive attack must be protected from internal corrosion by—

(a) Material that has been designed and selected to resist the corrosive fluid involved; or

(b) Suitable coating, inhibitor, or other means.
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- **body characters:** 248