StacksVerified U.S. regulatory reference

49 CFR §193.2627

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