CFR › Title 33 › Part 151 › §151.4133 CFR §151.41Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkThe master or person in charge of an oceangoing ship certificated under § 151.37(a) shall ensure that—(a)The carriage and discharge of the oil-like NLS meets §§ 157.29, 157.31, 157.35, 157.37, 157.41, 157.45, 157.47, and 157.49 of this chapter; and(b)The oil-like NLS is not discharged unless—(1)The monitor required by § 151.37(a)(1) is set to detect the oil-like NLS; and(2)A statement that the monitor has been set to detect the oil-like NLS is entered in the Oil Record Book Part II(Cargo/Ballast Operations), required by § 151.25.