In light of scrubber malfunction issues that have arose, the Sub-Committee on Pollution Prevention and Response 6th meeting(PPR) committed to investigate the environmental impacts of EGCS liquid effluents by adding a new item on their agenda, called ‘Evaluation and harmonization of rules and guidance on the discharge of liquid effluents from EGCS into waters, including conditions and areas‘, which will be evaluated on the next PPR.
The 2015 Guidelines on Exhaust Gas Cleaning Systems (EGCS)...
https://safety4sea.com/scrubber-malfunctions-in-spotlight-ahead-of-upcoming-2020-sulphur-cap/