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BWTS Compliance: Key challenges

During the 2020 GREEN4SEA Athens Forum, Dr. Efi Tsolaki, Chief Scientific Officer, ERMA FIRST S.A. highlighted that invasive aquatic species are a major threat to the marine ecosystems, and shipping has been identified as a vital pathway for introducing species to new environments.

BWM Convention: D-2 standard enters into force

Amendments to an international treaty aiming to prevent the spread of potentially invasive species in ships’ ballast water entered into force on 13 October 2019. The amendments set out an implementation schedule to make sure that ships manage their ballast water to meet a specified standard (D-2 standard).

Rising maritime traffic could lead to surge in invasive species

Rising global maritime traffic could lead to sharp increases in invasive species around the world over the next 30 years, according to a recent study by McGill University researchers. The findings suggest that shipping growth will far outweigh climate change in the spread of non-indigenous pests.

USCG’s Regulations on BWMC at a glance

Recently, the US Coast Guard completed a blog series regarding ballast water. In these series, USCG focuses extensively on compliance and enforcement of the US ballast water regulations. The blog-series consisted of five articles, each dealing with a different issue.

MERC halts Type Approval Certification testing of BWMSs

The Maritime Environmental Resource Center announced that after years of efforts to ensure scientifically-sound and transparent ballast water management systems certification testing, it will stop conducting Type Approval Certification testing of BWMS.

USCG perspective on BWM

It is important to keep in mind that ‘invasive species can enact significant long lasting damage to both the environment and economy.’ USCG said. So far in 2017, almost half of ballast water discharged into the US has been from overseas sources; more than 122 million cubic meters of foreign ballast water

IMO: Addressing invasive species

The BWM treaty entered into force in September 2017. This landmark step was recognized at the latest meeting of the Inter-agency Liaison Group on Invasive Alien Species, which held its 8th session in Brussels, Belgium, 22-23 November.

BW form is needed for vessels arriving at California ports

The California State Lands Commission issued a letter to remind about the new requirements for vessels arriving at the country’s ports on or after October 1st, 2017. As GREEN4SEA previously reported, from that date,  all vessels will have to submit a completed “Marine Invasive Species Program Annual Vessel Reporting Form” at least twenty four hours in advance of the first arrival of the calendar year at a California port.

How operators can stop the spread of invasive aquatic species

IMO issued an infographic, providing a comprehensive illustration of the rules that entered into force on September 8, with the BWM Convention. Adopted in 2004, the convention requires ships to manage their ballast water to avoid the uptake or discharge of aquatic organisms and pathogens within ballast water and sediments.

Danish Shipping releases new guide ahead of BWM Convention

As the Ballast Water Management Convention is entering into force on 8 September, Danish Shipping launched a new guide to advise on its implementation. The guide is intended to be on board the ships, so the crew can seek information when needed.


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