Marine Link
Wednesday, October 26, 2016

Lloyd's Register: Adjustment to BWM Convention Implementation Schedule

March 12, 2014

Please note: this Class News is a reissue and replaces the version sent on 10 January, 2014. The table has been amended to clarify the implementation dates for Regulation D-2 of the Ballast Water Management Convention.

The International Maritime Organization’s governing body, the Assembly, recently adopted Resolution A.1088(22) which adjusts the implementation schedule for the Ballast Water Management (BWM) Convention. The major changes are that:


  • all ships that are in service and under construction at the time that the Convention enters into force are considered to be existing ships
  • the BWM Convention renewal survey has been harmonised with the MARPOL IOPP renewal survey
  • references to compliance by the next “intermediate or renewal survey” have been changed to compliance by the next “renewal survey”.


The table shows the adjusted implementation schedule, detailing the dates by which ships will be required to discharge ballast water in compliance with the D-2 discharge standard (i.e., using a ballast water treatment system). Note: as the Convention cannot be amended before it enters into force, the Resolution only recommends that administrations apply these changes. However once the Convention enters into force it is likely that these changes will quickly be mandated by an amendment to the Convention.

Support from Lloyd’s Register
Lloyd’s Register can provide tailored marine consulting services to help with all aspects of ballast water management. These include help with developing a BWM compliance strategy or selecting the most suitable ballast water treatment technologies and systems.

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