Standard D-2 will be phased in according to ship age and ballast water capacity.
Ships constructed in 2009 or later with a ballast water capacity less than 5000 m3 must comply with Standard D-2 from 2012. Ships constructed before 2009 with a ballast water capacity of between 1500 m3 and 5000 m3 must comply with Standard D-2 from 2014. Ships constructed before 2009 with a ballast water capacity of less than 1500 m3 or more than 5000 m3 must comply with Standard D-2 from 2016.
