Under Annex V to MARPOL 73/78, food garbage discharged from vessels outside a special area, that are located between 3 and 6 nautical miles from nearest land must be ground to less than which of the following dimensions?
• Annex V to MARPOL 73/78 rules for garbage discharge distances and treatment • Difference in requirements inside 3 NM, between 3–12 NM, and beyond 12 NM from the nearest land • Specific requirement that food waste between certain distances must be ground or comminuted to a maximum particle size
• First, recall at what distance from land food garbage discharge becomes allowed at all, and under what conditions it must be processed • Think about how MARPOL expresses particle size limits: is it in inches or millimeters, and what is the usual maximum dimension? • Compare the given inch values to the commonly stated metric requirement in Annex V and convert between inches and millimeters in your head
• Verify the distance band in the question (3–6 NM) and that the rule you’re recalling actually applies to that band, not another one • Confirm the maximum particle size in Annex V for food waste that’s allowed to be discharged when ground or comminuted (usually given in millimeters) • Convert that millimeter value to inches and see which choice is closest to or matches that number
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