Ballasting operations in different parts of the world can be challenging due to wide variations in water quality. And this could make it difficult to achieve compliance with the IMO’s so-called D2 standard for ballast water discharges – even with a ballast water treatment system installed.
The D2 standard, which will be mandatory for all ships from September 2024 under the IMO’s ballast water management convention, specifies the maximum amount of viable marine organisms allowed to be released in...