Grey Water

Grey water means drainage from dishwater, shower, laundry, bath and washbasin drains. It does not include drainage from toilets, urinals, hospitals, and animal spaces, as defined in regulation 1.3 of MARPOL Annex IV (sewage), and it does not include drainage from cargo spaces. Grey water is not considered garbage in the context of Annex V.

Source: Resolution MEPC.219(63), 2012 Guidelines for the Implementation of MARPOL Annex V, 2 March 2012, International Maritime Organization Regulatory Guidance

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