Which document is used to record oil discharges overboard?

Which document is used to record oil discharges overboard?

• A. Oil Record Book
• B. Deck Log
• C. Cargo Record Book
• D. Engine Log

Answer: (A)

MARPOL requires logging oil-related operations, and the document kept for this purpose is the Oil Record Book. This official log records actions in the machinery spaces involving oil, including discharging oily mixtures overboard, oil transfers between tanks, and the operation of the oil-water separator. It provides a precise, auditable record used during inspections and pollution investigations. The other records serve different functions: the Deck Log captures daily navigational events and ship life but not regulatory oil discharges; the Cargo Record Book tracks cargo handling and residues related to cargo operations; the Engine Log documents engine-room performance and maintenance. For recording discharges overboard, the Oil Record Book is the correct choice.

MARPOL requires logging oil-related operations, and the document kept for this purpose is the Oil Record Book. This official log records actions in the machinery spaces involving oil, including discharging oily mixtures overboard, oil transfers between tanks, and the operation of the oil-water separator. It provides a precise, auditable record used during inspections and pollution investigations.

The other records serve different functions: the Deck Log captures daily navigational events and ship life but not regulatory oil discharges; the Cargo Record Book tracks cargo handling and residues related to cargo operations; the Engine Log documents engine-room performance and maintenance. For recording discharges overboard, the Oil Record Book is the correct choice.