Equivalence with the D-1 standard
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Statutory Documents - IMO Publications and Documents - Resolutions - Marine Environment Protection Committee - Resolution MEPC.206(62) – Procedure for Approving Other Methods of Ballast Water Management in Accordance with Regulation B-3.7 of the BWM Convention – (Adopted on 15 July 2011) - Annex – Procedure for Approving Other Methods of Ballast Water Management in Accordance with Regulation B-3.7 of the BWM Convention - 7 Assessment of equivalence - Equivalence with the D-1 standard

Equivalence with the D-1 standard

  7.5 Other Methods designed to provide equivalence to the D-1 standard can be used only until the ship type, under the BWM Convention, is required to comply with the D-2 standard (unless the system proves it can also provide equivalence to the D-2 standard):

  • .1 these methods should demonstrate through risk assessment, independently validated physical and biological modelling, operational testing of this modelling and full-scale operational testing of systems based on Other Methods, where applicable, that the Other Method is capable of meeting at all times a level of protection that is, at least equivalent to, or better than, regulation D-1 of the BWM Convention;

  • .2 if there is a question about the environmental impact of an Other Method during its development, such approval should be split in the same way as it is in Procedure (G9). That is, Other Methods should be approved by the Administration and Committee based on independently validated data prior to being tested at sea; and

  • .3 the relevant water quality parameters (e.g., suspended solids, salinity, oxygen concentration, particulate organic matter) should be reasonably the same in the incoming as well as in the outflowing water.

Parent topic: 7 Assessment of equivalence
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