IMO Resolution A.851(20)
General Principles for Ship Reporting Systems and Ship Reporting Requirements, Including Guidelines for Reporting Incidents Involving Dangerous Goods, Harmful Substances and/or Marine Pollutants
Published by International Maritime Organization (IMO)
The CFR incorporates IMO Resolution A.851(20) 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 edition the CFR requires
IMO Resolution A.851(20), adopted 27 November, 1997
As the CFR lists it: “Resolution A.851(20), General Principles for Ship Reporting Systems and Ship Reporting Requirements, Including Guidelines for Reporting Incidents Involving Dangerous Goods, Harmful Substances and/or Marine Pollutants, adopted 27 November, 1997”
- Listed in 33 CFR 155.140(d)(3); required by33 CFR 155.5035
How to read it
- Read it freeIMO Index of Resolutions ↗
IMO's index of its resolutions, with each resolution's text.
- 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.
IMO Resolution A.851(20) 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.