Tankerman · MARPOL — Machinery Bilge
Oily bilge water from machinery spaces may generally be discharged at sea only after passing through equipment that limits oil content to no more than:
- A15 parts per million (ppm)✓ Correct
- B100 ppm
- C1,000 ppm
- DThere is no limit
Explanation
Outside special areas and underway, processed machinery-space bilge water must contain 15 ppm oil or less, verified by an oil-content meter with automatic stopping device. In special areas and ports, stricter limits/prohibitions apply.
Authority: MARPOL Annex I
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