33 CFR § 151.41 - Operating requirements for oceangoing ships with IOPP Certificates: Category C and D Oil-like NLSs.

---
identifier: "/us/cfr/t33/s151.41"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "33 CFR § 151.41 - Operating requirements for oceangoing ships with IOPP Certificates: Category C and D Oil-like NLSs."
title_number: 33
title_name: "Navigation and Navigable Waters"
section_number: "151.41"
section_name: "Operating requirements for oceangoing ships with IOPP Certificates: Category C and D Oil-like NLSs."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "O"
subchapter_name: "POLLUTION"
part_number: "151"
part_name: "VESSELS CARRYING OIL, NOXIOUS LIQUID SUBSTANCES, GARBAGE, MUNICIPAL OR COMMERCIAL WASTE, AND BALLAST WATER"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "33 U.S.C. 1902, 1903, 1908; 46 U.S.C. 6101; 46 U.S.C. 70034; Pub. L. 104-227, 110 Stat. 3034; sec. 623, Pub. L. 108-293, 118 Stat. 1063; E.O. 12777, 56 FR 54757, 3 CFR, 1991 Comp., p. 351; DHS Delegation No. 00170.1, Revision No. 01.4."
cfr_part: "151"
---


# 151.41 Operating requirements for oceangoing ships with IOPP Certificates: Category C and D Oil-like NLSs.

The 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.