The Convention requires that vessel should conduct ballast water exchange: •At least 200 nm from the nearest land and in water at least 200 m in depth; if this is not possible •As far from the nearest land as possible, and in all cases at least 50 nm from the nearest land and in water at least 200m in depth. •In sea areas designated by the Port State. All local and / or national regulation should be taken into consideration as they may specify other depths and distances from land. A ship will not be required to deviate from its intended voyage or delay the voyage in order to … [Read more...]