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Requirements of the Ballast Water Management Convention


All international going ships under the Convention must implement a ‘Ballast water management plan’ that enables the ship to manage their ballast water and sediment discharge to a certain standard. The plan is designed to meet the requirements for compliance with the Convention and the G4 Guidelines produced by the IMO. It includes standard operational guidance, planning and management, as well as additional details including sampling points and systems. 


Additionally, all ships over 400GT must also carry a ballast water record book that details such requirements as the filling and discharge of each tank, according to time, date, location and the treatment applied to the water.


Ships that comply with the Convention will receive and are duly required to carry an international ballast water management certificate. To receive a certificate, a ship will have to supply the necessary documentation showing compliance with the Convention and a survey will be carried out onboard. A survey may be carried out by a flag State, or by a Classification Society who have been authorised by a flag State. The convention is monitored by Port State Control, who must assess the ballast water management plan and its operation on the ship.


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