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33 CFR § 157.23 - Cargo and ballast system information.

---
identifier: "/us/cfr/t33/s157.23"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "33 CFR § 157.23 - Cargo and ballast system information."
title_number: 33
title_name: "Navigation and Navigable Waters"
section_number: "157.23"
section_name: "Cargo and ballast system information."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "O"
subchapter_name: "POLLUTION"
part_number: "157"
part_name: "RULES FOR THE PROTECTION OF THE MARINE ENVIRONMENT RELATING TO TANK VESSELS CARRYING OIL IN BULK"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "33 U.S.C. 1903; 46 U.S.C. 3703, 3703a (note); Department of Homeland Security Delegation No. 0170.1. Subparts G, H, and I are also issued under section 4115(b), Pub. L. 101-380, 104 Stat. 520; Pub. L. 104-55, 109 Stat. 546."
regulatory_source: "CGD 74-32, 40 FR 48283, Oct. 14, 1975, unless otherwise noted."
cfr_part: "157"
---

# 157.23 Cargo and ballast system information.

(a) Each tank vessel to which this part applies must have an instruction manual that describes the automatic and manual operation of the cargo and ballast system in the vessel.

(b) The format and information contained in the instruction manual required in paragraph (a) of this section must be similar to the manual entitled “Clean Seas Guide for Oil Tankers” which can be obtained from the International Chamber of Shipping, 30-32 St. Mary Axe, London, England, EC3A 8ET.