A precaution you should take before bunkering is to?

Before bunkering, plugging the scuppers is essential as it helps prevent any spilled fuel or oil from entering the surrounding water. During the bunkering process, there is a risk of overflow or accidental discharge, and if the scuppers are left unprotected, it could lead to environmental contamination and pollution. By taking this precaution, you ensure that any potential spills are contained within the vessel, allowing for a more controlled response and minimizing harm to the marine environment.

While closing lids on vents, plugging vents, or plugging sounding pipes may seem like reasonable precautions, they do not specifically address the potential for spill containment in the same way that ensuring scuppers are plugged does. Effective management of the bunkering process and contingency planning is crucial for maintaining compliance with environmental regulations and safeguarding marine ecosystems.