Your examiner asks: "Can a cargo be listed in both the IMDG Code and the IMSBC Code? Give an example."

A. Yes — the same substance can appear in both codes because classification depends on the form of carriage: in packaged form it falls under IMDG, while as an unpackaged solid carried in bulk it falls under IMSBC. Some mineral concentrates and similar substances are genuine examples where both listings exist for the same material, with materially different hazards and precautions depending on which mode applies.

B. No single substance can ever be listed in both codes — IMO Convention drafting prevents duplicate listings between IMDG and IMSBC.

C. IMSBC entries are simply the bulk equivalent placards of IMDG entries, with identical hazard data and precautions in both codes.

D. Dual-listed cargoes are automatically reclassified as IMDG-only once loaded in bulk quantities exceeding a set tonnage.

A. Group A: cargoes that may liquefy if carried at a moisture content exceeding their Transportable Moisture Limit (TML). Group B: cargoes that possess a chemical hazard which could give rise to a dangerous situation (e.g. self-heating, toxic, flammable). Group C: cargoes not liable to liquefy (Group A hazard) and not possessing chemical hazards (Group B hazard), though they may still have other physical hazards. Some cargoes can fall into more than one group simultaneously (e.g. both A and B).

B. The IMSBC Code uses the same Class 1-9 numbering system as the IMDG Code, with no separate A/B/C grouping.

C. There are only two categories: hazardous and non-hazardous, with no further sub-classification.

D. Group A cargoes are chemical-hazard cargoes; Group B cargoes are liquefaction-risk cargoes — the definitions are the reverse of common usage.

A. A shipper's declaration of the cargo's properties (including any chemical hazards relevant to Group B classification, such as self-heating or methane generation for coal), a signed certificate of the Transportable Moisture Limit, and a signed certificate of the actual Moisture Content at the time of shipment — all of which the Master/OOW should review and retain before agreeing to load.

B. No documentation is required for coal cargo specifically, since it is a long-established bulk trade.

C. Only a bill of lading is required; TML and moisture content certification apply only to mineral concentrates, not coal.

D. The shipper's declaration covers quantity and price only; moisture/TML certification is the receiving port's responsibility, not the shipper's.