CFR › Title 46 › Part 132 › §132.11046 CFR §132.110Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link(a)Except as provided for liftboats by § 134.180 of this subchapter, each fitting, flange, valve, and run of piping must meet the applicable requirements of part 128 of this subchapter. Piping must be—(1)Hot-dip galvanized;(2)At least extra-heavy schedule; or(3)Of a suitable corrosion-resistant material.(b)Each distribution cut-off valve must be marked in compliance with § 131.820 of this subchapter.