Tankerman · MARPOL — Load on Top
The 'load on top' procedure with slop tanks is used to:
- ADischarge all slops to sea
- BInert the cargo tanks
- CSettle oil/water in a slop tank, decant the water, and load new cargo on top of the retained oil✓ Correct
- DHeat the cargo
Explanation
Tank washings and ballast are collected in a slop tank where oil and water separate; the relatively clean water is decanted (within discharge limits) and the recovered oil is kept and sold with the next cargo loaded on top—minimizing oil discharged to sea.
Authority: MARPOL Annex I; ISGOTT
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