Technical Circular No. 51 | 2017

Subject: Maritime Cook Islands circular 150/2017 reg. BWM Convention Implementation.

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  • Maritime Cook Islands has issued a Circular 150/2017 (copy attached) regarding the Ballast Water Management Implementation and instructions on decoupling the IOPP renewal date.
  • BWM convention will come into force from 08th September 2017. By 08 September 2017, vessels to which Ballast Water Management Convention applies are required to:
  1. Have an Approved Ballast Water Management Plan on board,
  2. Maintain  a Ballast water record book,
  3. Manage their ballast water on every voyage by performing ballast water exchange (or by approved ballast water treatment system as applicable),
  4. International Ballast Water Management Certificate.                    
  • Existing ships are required to comply with requirement of Regulation D-2 (the ballast water performance standard) no later than the first IOPP renewal survey after 08 September 2017; till then vessels are required to comply with regulation D-1 (ballast water exchange) of the Convention.
  • Ships with keel laying date after the 08 September 2017 are required to comply with regulation D-2 upon delivery.
  • Administration has no objection to decouple the renewal survey of IOPP certificate prior to 08 September 2017.
  • Ship owners intending to decouple the IOPP renewal survey are requested to notify administration in advance.
  • However, administration has advised that re-harmonization of the IOPP certificate is to be done at earliest possible opportunity and not further than the next IOPP renewal survey.
  • Ship owners/ operators and masters are advised to be guided by above


  1. Maritime Cook Islands circular 150/2017.


This Technical Circular and the material contained in it is provided only for the purpose of supplying current information to the reader and not as an advice to be relied upon by any person.
While we have taken utmost care to be as factual as possible, readers/ users are advised to verify the exact text and content of the Regulation from the original source/ issuing Authority.


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