CTM 9.7 A1	Chemical Tanker Manual CTM Miscellaneous	Doc No.: CTM 9.7 A1 Revision: 01 Date: 15 Oct 2024 Issued by: DPA Approved by: MD

1. POLLUTION CATEGORIES – MARPOL ANNEX 2

The Annex II Regulations for the control of pollution by noxious liquid substances in bulk define a four-category categorization system for noxious and liquid substances.

The categories are: (CDI 5.5.15)

• Category X: Noxious Liquid Substances which, if discharged into the sea from tank cleaning or deballasting operations, 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 deballasting operations, 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 deballasting operations, 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 which have been evaluated and found to fall outside Category X, Y, or Z because they are 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 of deballasting operations. The discharge of bilge or ballast water or other residues or mixtures containing these substances are not subject to any requirements of MARPOL Annex II.

2. CHINESE BASELINES

• Refer to local agent info/guidance for understanding of Chinese baselines with respect to Marpol and other international conventions.

3. TABULAR LIST OF ANIMAL, FISH AND VEGETABLE OILS AND FATS

• This list of oils shall not be considered as comprehensive.

Drying Oils	Semi-Drying Oils	Non-Drying Oils	Water Soluble Product
Candle Nut Oil	Babassu Oil	Camphor Oil	Molasses
Linseed Oil	Cod Oil	Cashew Nut Oil	Molasses Residue (trade name Amix, Vivasse)
Poppy Seed Oil	Cod Liver Oil	Castor Oil	Soya Whey Water (Soya Molasses)
Tung Oil	Cottonseed Oil	Coconut Oil	Lignin Pitch (Lignin Sulphuric Acid, Sodium Salt Solution)
Safflower Oil	Rapeseed Oil	Coconut Oil Fatty Acid
Sesame Oil	Sesame Oil	Ground Nut Oil
Soya Bean Oil	Sunflower Seed Oil	Hog Grease
Tall Oil	Whale Oil	Lard Oil (Animal)
Tung Oil	Wheat Oil	Olive Oil
		Palm Oil
		Palm Oil Fatty Acid
		Palm Kernel Oil Fatty Acid
		Palm Kernel Oil
		Rapeseed Oil (Colza)
		Rice Bran Oil
		Shea Nut Butter
		Tallow Oil