Definitions & Abbreviations➢
Category X: Noxious liquid substances which, if discharged into the sea from tank cleaning or deballastingoperations, are deemed to present a major hazard to either marine resources or human health and, therefore, justify the prohibition of the discharge into the marine environment;
➢Category Y: Noxious liquid substances which, if discharged into the sea from tank cleaning or deballastingoperations, are deemed to present a hazard to either marine resources or human health or cause harm to amenities or other legitimate uses of the sea and therefore justify a limitation on the quality and quantity of the discharge into the marine environment;
➢Category Z: Noxious liquid substances which, if discharged into the sea from tank cleaning or deballastingoperations, are deemed to present a minor hazard to either marine resources or human health and therefore justify less stringent restrictions on the quality and quantity of the discharge into the marine environment;
➢Other substances: Substances indicated as OS in the pollution category column of chapter 18 of the International Bulk Chemical Code which have been evaluated and found to fall outside category X, Y or Z as defined inregulation 6.1of this Annex because they are, at present, considered to present no harm to marine resources, human health, amenities or other legitimate uses of the sea when discharged into the sea from tank cleaning or deballastingoperations. The discharge of bilge or ballast water or other residues or mixtures containing only substances referred to as ‘‘Other Substances’’ shall not be subject to any requirements of the Annex.
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Please check out other links in my channel for maritime information videos.
1) How to join Merchant navy & Eligibility criteria
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2) Roles & Responsibilities of various ranks in the merchant navy
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3)Bridge Equipment on board merchant ships
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4)Tanker calculations made easy
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5) Wall wash onboard chemical tankers
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6) Chemical tanker operations Part 1
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7) Chemical tanker operations Part 2
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8) Unsafe method of rigging pilot ladder
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9) Star identification for Mariners
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10)Guidance & Advice for Deck Cadets/GP Ratings joining for First time.
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11)MUI Homes for mariners in india
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12) Framo systems on tankers
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13) Wall wash on board tankers- Slideshow
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