Regulation 12 of MARPOL Annex has been amended, now making it a retroactive requirement for all vessels irrespective of delivery date, effective from 1 January 2017.

By the new amendments to Annex I of MARPOL, all vessels are required to comply with this requirement not later than the first renewal survey carried out on or after 1 January 2017. It is however anticipated that most vessels constructed after 31 December 1991 already comply as there has been a MARPOL Unified Interpretation ever since, prohibiting interconnections between sludge and bilge systems.

Read more in the attached document, provided by DNV GL.

 Retroactive requirements for engine room sludge piping systems

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