The term "load on top" is used on many crude oil carriers, what is this a method for?

Correct Answer: Option B — the loading of new cargo into a decanted slop tank as a procedure to minimize pollution

The "load on top" (LOT) procedure is an international MARPOL-compliant method where washings and oily mixtures are collected in a slop tank, allowed to settle, and decanted. The next cargo is then loaded directly on top of the remaining oily residue, minimizing operational pollution.