Finland Bans Cargo Vessels from Discharging Wastewater into Coastal Waters
Beginning from July 1, 2025, Finland has implemented a groundbreaking law that prohibits cargo vessels from discharging toilet wastewater, scrubber sludge, and sulphuric wash water into the nation’s coastal waters. This move positions Finland as the first country to enforce such strict maritime wastewater regulations.
The legislation, which was approved by the Finnish Parliament in December 2024, extends the existing restrictions on passenger vessels to include cargo ships. The aim is to address water discharges that directly contribute to marine pollution. Toilet wastewater, in particular, contains high levels of intestinal bacteria, solids, and nutrients that can lead to eutrophication.
Eutrophication is a process that depletes oxygen in marine environments and promotes the growth of harmful algae, posing a serious threat to marine ecosystems.
While the ban is comprehensive, there are transition periods in place. Greywater from showers and sinks will still be allowed to be discharged in Finnish waters for the next five years. However, all forms of wastewater can be legally discharged outside the territorial waters of Finland.
According to environmental authorities, this new regulation is a crucial step in safeguarding the Baltic Sea, which is currently facing significant challenges due to chronic nutrient pollution. Eutrophication is identified as one of the most severe ecological threats in the region.
References: AA News, Helsinki Times