BIMCO's position has been approved by the BIMCO Board of Directors.
Currently, MARPOL does not regulate grey water. In connection with passenger/cruise traffic and/or sensitive sea areas, there are some national/regional regulations on grey water whilst others are in the process of being developed.
Grey water is defined by the International Maritime Organization (IMO) as drainage from dishwashers, galley sinks, showers, laundry, baths and washbasin drains. It is a known source of contaminants to the marine environment and has been identified as a vector for microplastics in the oceans.
A limited number of ships have the capacity to collect and hold grey water for discharge and/or subsequent treatment. Most ships discharge grey water directly via runoffs into the sea. Fragmented piping and tank systems on existing ships make it extremely difficult to collect grey water for discharge to reception facilities ashore.
For existing ships, regulations on minimisation of contaminants and microplastics from grey water should be introduced in a pragmatic and practical way, for example by using treatment devices on washing machines.
BIMCO recommends that ships should focus on using minimal-toxic and phosphate free products as well as non-harmful biodegradable products where available and on, reducing the use of products containing intentionally-added microplastics wherever possible.
BIMCO will inform about the available technological solutions and initiate an awareness campaign to nudge possible behavioural change.
Veritas Petroleum Services (VPS) publish regular Bunker Alerts based entirely on fuel samples and have kindly permitted BIMCO’s Members to access this information.
The Bunker Alerts are not intended to be an evaluation of overall bunker quality in the port or area concerned, but usually highlight a specific parameter within the fuel which has raised a quality issue.
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