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  • NafsGreen Press Staff
  • Ballast

DNV GL: MEPC 71 agrees to implementation dates for ballast water treatment systems

The MEPC, at its 71st meeting this week, reached a compromise on compliance dates for ballast water discharge.

Ships constructed after 8th September 2017 must comply on delivery, while existing ships in general must comply by the first IOPP renewal after 8th September 2019. The long-awaited agreement will have global impact. It provides certainty to the maritime community regarding the mandatory compliance dates for treatment of ballast water discharge.
With two months to go before the entry into force of the international Ballast Water Management Convention on 8 September 2017, MEPC 71 reached a highly anticipated compromise agreement on the implementation dates for the so-called D-2 discharge standard.

Generally, compliance with the D-2 standard translates to the date individual ships must have a ballast water treatment system installed. The agreement ensures full global implementation by 8 September 2024 and contains the following key elements:

Ships constructed (keel-laid) on or after 8 September 2017 need to comply with the D-2 standard upon delivery.

Existing ships should be D-2 compliant on the first IOPP renewal following entry into force if:

    this survey is completed on or after 8 September 2019, or
    a renewal IOPP survey is completed on or after 8 September 2014 but prior to 8 September 2017.

Furthermore, the ship should be D-2 compliant on the second IOPP renewal survey following entry into force, if the first renewal survey following the date of entry into force of the convention is completed prior to 8 September 2019 and if conditions 1 or 2 above are not met.

This means that a ship which is due for an IOPP renewal survey between 8 September 2017 and 8 September 2019 cannot decouple its IOPP survey for a second renewal before 8 September 2019 without then having to comply with the D-2 standard.

Ships constructed before 8 September 2017 and delivered (including the initial IOPP survey) after that date, need to comply with the D-2 standard at the first IOPP renewal survey after delivery.

It was also agreed that a ship to which the IOPP renewal survey does not apply (generally ships less than 400 GT in size) shall be D-2 compliant no later than 8 September 2024.

The agreement implies that vessels with the last IOPP renewal carried out before 8 September 2014 have nothing to gain by decoupling, but instead actually risk losing up to two years on the D-2 implementation date by doing so.

An MEPC resolution text to ensure that this agreement is effective from the convention’s entry into force date, 8 September 2017, was also agreed to.

Tags: ballast DNV GL

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