MARPOL
International Convention for the Prevention of Pollution from Ships
Published by International Maritime Organization (IMO)
The CFR incorporates MARPOL by reference, which makes the edition it names part of the regulation. The CFR requires the edition it names, which may not be the newest. To enforce any other edition, the agency must publish the change in the Federal Register.
The 5 editions the CFR requires
Different parts name different editions; each applies where its part says so. Newest first.
MARPOL, Consolidated Edition 2011, Annex I, Regulations for the prevention of pollution by oil, Chapter 3—Requirements for machinery spaces of all ships, Part A-Construction, Regulation 12A, “Oil fuel tank protection”
As the CFR lists it: “MARPOL Consolidated Edition 2011, Annex I, Regulations for the prevention of pollution by oil, Chapter 3—Requirements for machinery spaces of all ships, Part A-Construction, Regulation 12A, “Oil fuel tank protection””
- Listed in 33 CFR 155.140(d)(6); required by33 CFR 155.250
MARPOL, Consolidated Edition 2011, Annex I, Regulations for the prevention of pollution by oil, Chapter 4—Requirements for the cargo area of oil tankers, Part A—Construction, Regulation 22, “Pump-room bottom protection,” (Annex I, Regulation 22)
As the CFR lists it: “MARPOL Consolidated Edition 2011, Annex I, Regulations for the prevention of pollution by oil, Chapter 4—Requirements for the cargo area of oil tankers, Part A—Construction, Regulation 22, “Pump-room bottom protection,” (Annex I, Regulation 22)”
- Listed in 33 CFR 157.02(b)(9); required by33 CFR 157.14 ↗
MARPOL, Consolidated Edition 2011, Annex I, Regulations for the prevention of pollution by oil, Chapter 4—Requirements for the cargo area of oil tankers, Part A—Construction, Regulation 23, “Accidental oil outflow performance,” (Annex I, Regulation 23)
As the CFR lists it: “MARPOL Consolidated Edition 2011, Annex I, Regulations for the prevention of pollution by oil, Chapter 4—Requirements for the cargo area of oil tankers, Part A—Construction, Regulation 23, “Accidental oil outflow performance,” (Annex I, Regulation 23)”
- Listed in 33 CFR 157.02(b)(10); required by33 CFR 157.20 ↗
MARPOL, 1973, as modified by the Protocol of 1978 relating thereto, Consolidated Edition, 2006
As the CFR lists it: “International Convention for the Prevention of Pollution from Ships, 1973, as modified by the Protocol of 1978 relating thereto, Consolidated Edition, 2006 (“MARPOL 73/78”)”
MARPOL, 1978
As the CFR lists it: “The International Convention for the Prevention of Pollution from Ships (MARPOL 73/78), Annexes I, II, III, and V, 1978 (“IMO MARPOL 73/78”)”
- Listed in 46 CFR 63.05-1(d)(3); required by46 CFR 63.25-9 ↗
How to read it
- Where to get itIMO Publishing ↗
A free or purchased copy may not be the edition the CFR names; check it against the edition above. Every incorporated standard can also be inspected at the National Archives (NARA) and at the agency named in the section that lists it.
MARPOL is copyrighted by its publisher; RegKnot shows its title and the editions the CFR names, not its text. Read from the eCFR's incorporation-by-reference sections, current as of October 26, 2026. The regulation text governs. All standards the CFR requires.