Front cover of the USCG Oil Record Book for Ships, form CG-4602A (Rev. 11-16)
Table of contents page of the USCG Oil Record Book for Ships (Rev. 11-16)
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Front cover of the USCG Oil Record Book for Ships, form CG-4602A (Rev. 11-16)
Table of contents page of the USCG Oil Record Book for Ships (Rev. 11-16)

USCG Oil Record Book for Ships (Revised 11-16)

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The USCG Oil Record Book for Ships, CG-4602A (Rev. 11-16) is the U.S. Coast Guard's record book for oil handling on board, required under 33 CFR 151.25 and MARPOL Annex I. One book holds both parts: Part I for machinery space operations and Part II for cargo and ballast operations on tankers.

At a glance

Form CG-4602A (Rev. 11-16)
Issued by U.S. Coast Guard, Department of Homeland Security
OMB number 1625-0009
Parts Part I: Machinery Space Operations (all ships)
Part II: Cargo/Ballast Operations (oil tankers)
Legal basis 33 CFR 151.25; Act to Prevent Pollution from Ships; MARPOL Annex I

Who must keep one

  • Part I: oil tankers of 150 gross tons and above, other ships of 400 gross tons and above, and manned fixed or floating drilling rigs and platforms
  • Part II: oil tankers of 150 gross tons and above, and other ships carrying 200 cubic metres or more of oil in bulk

What gets recorded

  • Part I, codes A to I: fuel tank ballasting and cleaning, dirty ballast discharge, sludge collection and disposal, bilge water discharge, oil filtering equipment condition, accidental discharges, bunkering and additional procedures
  • Part II: loading, internal transfer and unloading of cargo, crude oil washing, ballasting, tank cleaning, slops, oil discharge monitoring equipment and ballast water

Keeping the book

The person in charge signs each operation and the master signs each completed page. The book stays on board for at least three years after the last entry and remains U.S. Government property.

Coast Guard Marine Safety Information Bulletin 03-25 notes that the sludge example on page 13 of Rev. 11-16 should read code C11, not C12.

Which ships need an Oil Record Book?

Under 33 CFR 151.25, Part I is for oil tankers of 150 GT and above, other ships of 400 GT and above, and manned drilling rigs and platforms. Part II is for oil tankers of 150 GT and above and other ships carrying 200 cubic metres or more of oil in bulk.

How long must it be kept?

At least three years after the last entry, on board the vessel.

Is Rev. 11-16 the current form?

Yes, it's the form in use. The Coast Guard has filed a renewal with a revised form (Rev. 02/26) for approval. We'll update this page when it's issued.

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Oil Record Book for Ships Part I and II

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