Your examiner asks: "What does MARPOL Annex III cover, and how is it actually given effect on board?"

A. Annex III covers the prevention of pollution by harmful substances carried in packaged form, and is given practical effect mainly through the IMDG Code's "Marine Pollutant" identification, marking and documentation requirements — so as OOW you encounter Annex III in practice as part of the dangerous goods/IMDG paperwork, not as a separate standalone document.

B. Annex III is unrelated to the IMDG Code and uses an entirely separate marking and documentation system.

C. Annex III applies only to bulk cargo, with no relevance to packaged goods at all.

D. Annex III has been withdrawn and replaced entirely by Annex VI.

A. Annex II covers the prevention of pollution by noxious liquid substances carried in bulk — chemical tankers carrying these substances categorise each cargo by hazard (broadly, how harmful a discharge would be to marine life/human health), and follow discharge and tank-cleaning rules that scale with that hazard category, separate from the oil rules in Annex I.

B. Annex II covers garbage disposal, and is simply an alternative name for Annex V.

C. Annex II applies only to oil tankers, duplicating Annex I with no separate scope.

D. Annex II has no discharge or categorisation scheme; it only requires a certificate with no operational content.

A. Generally limited relevance for the vessel's own operations (Annex II's discharge/Cargo Record Book obligations apply specifically to ships certificated to carry noxious liquid substances in bulk, i.e. chemical tankers), but OOWs should still understand the basic categorisation concept since they may encounter Annex II cargoes referenced in port/terminal documentation, charter party clauses, or when transferring between ship types during a career.

B. Annex II applies identically to every ship type regardless of cargo carried, including dry cargo vessels carrying no liquid bulk cargo.

C. Annex II is entirely irrelevant to any non-chemical-tanker OOW and need not be understood at any level.

D. Annex II only applies retroactively if a non-chemical-tanker vessel later converts to chemical tanker service, with no relevance before conversion.