Namely, operators with an open-loop (or hybrid) scrubber installed on their ships would need to be mindful when their ships operate in areas where scrubber discharge is banned.

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These ships will need to switch to either closed-loop mode or to compliant fuel before the ship’s arrival at such ports.

Below you may see a map with the countries that prohibit discharge of wash-water from open-loop scrubbers:

In addition, SAFETY4SEA has prepared a comprehensive list with all the countries that have imposed restrictions on scrubbers. You can see the lists in the following links: