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OCTCO/OCTF Exit Exam • Set 2 Question 23 of 30

What is the purpose of ballast water exchange (BWE) under BWM Convention?

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Direct Answer

Option B: Replace coastal ballast water with open-ocean deep sea water to prevent invasive species transfer

The Ballast Water Management Convention mandates open-ocean ballast water exchange to replace coastal organisms with deep-sea species, significantly minimizing the global transfer of harmful aquatic invasives via ship ballast tanks.

All Options

A
Cool deck
B
Replace coastal ballast water with open-ocean deep sea water to prevent invasive species transfer (Correct Answer)
C
Clean fuel tanks
D
Wash cargo lines

Detailed Explanation & Context

The Ballast Water Management Convention mandates open-ocean ballast water exchange to replace coastal organisms with deep-sea species, significantly minimizing the global transfer of harmful aquatic invasives via ship ballast tanks.

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Oil and Chemical Tanker Cargo Operations (OCTCO/OCTF).

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