StacksVerified U.S. regulatory reference

33 CFR §157.130

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
If a tank vessel having a COW system under § 157.10(e), § 157.10a(a)(2), or § 157.10c(b)(2) carries more than one grade of crude oil, the COW system must be capable of washing the cargo tanks with the grades of crude oil that the vessel carries.