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

When oil-handling work is carried out, the Master, Chief Officer and Chief Engineer shall enter the facts in the Oil Record Book and sign the same according to below procedures.

Keeping Oil Record Book

The Master shall keep on board the following Oil Record Books required by laws and regulations.

Oil Record Book for tankers (cargo and ballast operations) and

Oil Record Book for all ships (machinery space operations).

Persons Who Will Sign Entries In Oil Record Book :
For oil tankers chief officer and for other ships chief engineer .
Each completed page shall be countersigned by the Master

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, of sludge or bilge in various drain or collecting tanks in Engine Room.

This can be the data for entry in the Oil Record Book as well as information for supplementary explanation at an inspection.

Handling notes are to be preserved onboard for three years after the day of the last entry.

Records Of ODMCS (Tankers)

When Vessel discharging, an oily mixture to sea, the Chief Officer shall operate the Oil Discharge Monitoring and Control System (ODMCS), and shall record the discharging of effluent and opening/closing of overboard discharging valve by this system.

The Chief Officer shall keep the records for three years after the day of the last entry.

Rules For Reference

MARPOL 73/78 as amended
Law related to the Prevention of the Marine Pollution and Marine Disaster .
33 CFR Part 151 (U.S.A.)


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

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