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Keeping Oil Record Book on board cargo ships and how to make entry

Most merchant ships primarily burn fuel oil to produce power for propulsion purposes, electrical power generation, boilers, or all of these. But any misuse of fuel oil can lead to major claims and jeopardize the safety of the ship. The purpose of this article is to provide masters, ships' chief engineer and shore superintendents with a basic understanding of the use of, and precautions to be taken when using fuel oils on board ship and how to keep a proper oil record book entry. Marpol 73/78 required when any oil-handling work is carried out, the Master, Chief Officer, and Chief Engineer enter the facts in the Oil Record Book and sign the same according to below procedures.



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Oil Tanker Safety Guide
Keeping Oil Record Book: The Master shall keep on board the following Oil Record Books required by laws and regulations Persons Who Will Sign Entries In Oil Record Book: Disposal To Reception Facilities In Harbour

Tank washings, Dirty ballast water, Residues, or Oily mixtures are discharged to reception facilities in a harbor for disposal; the Master shall obtain from the facility, the receipt or certificate which states the receiving date and the received quantity (with a supplementary note in English). And keep it on board attaching to the Oil Record Book to prove the fact of the disposal ashore.

Language to be Used : English (recognized worldwide)

Keeping Oil Record Book: The Master shall retain the Oil Record Books on board for three years after the day of the last entry, and these should be readily available for any inspections.

Handling Note (Machinery part – All ships): This is to record the quantity retained, transferred, disposed, or added, sludge, or bilge in the various drain or collecting tanks in Engine Room. This can be the data for entry in the Oil Record Book and information for a supplementary explanation at an inspection. Handling notes are to be preserved on board for three years after the day of the last entry.

Records Of ODMCS (Tankers) : When Vessel is discharging, an oily mixture to sea, the Chief Officer shall operate the Oil Discharge Monitoring and Control System (ODMCS). It shall record the discharging of effluent and opening/closing of the overboard discharging valve by this system. The Chief Officer should keep the records for three years after the day of the last entry.

Rules For Reference:
Guidance for recording of operations in the oil record book Part 1 - Machinery space operations ( all ships)

Operations should be recorded in chronological order as they have been executed on board.



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