StacksVerified U.S. regulatory reference

49 CFR §193.2631

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Each component that is subject to internal corrosive attack must be protected from internal corrosion by—
  1. (a)Material that has been designed and selected to resist the corrosive fluid involved; or
  2. (b)Suitable coating, inhibitor, or other means.