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Required as per regulation-20 of annex-1. |
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Required for all oil tankers of 150GT and above. |
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Required for all ships of 400GT and above. |
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Oil record books are of two parts. |
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Part-1: For machinery space operation. |
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Part-2: For cargo and ballast space operation. |
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Ballasting or cleaning of fuel oil tanks. |
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Discharging of dirty ballast and cleaning water. |
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Disposal of oil residues (sludge). |
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Discharge overboard / disposal of machinery space bilge. |
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Loading, discharging and internal transfer of cargo. |
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Ballasting of cargo tanks and dedicated CBT (clean ballast tank). |
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Cleaning of cargo tanks including COW (crude oil washing). |
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Discharge of ballast from COT and CBT. (Not SBT- segregated ballast tank). |
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Discharge of water from slop tanks. |
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Closing of valves after slop tanks discharge. |
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Closing of valves to isolate dedicated clean ballast tanks from cargo and stripping lines. |
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Disposal of residues. |