The cargoes listed in this table are not regulated under subchapter D or O of this title when carried in bulk on non-oceangoing barges. Category X, Y, or Z noxious liquid substance (NLS) cargo, as defined in Annex II of MARPOL 73/78, listed in this table, or any mixture containing one or more of these cargoes, must be carried under this subchapter if carried in bulk on an oceangoing ship.
| Cargoes | Pollution category |
|---|---|
| Acrylic acid/ethenesulfonic (alternately ethenesulphonic) acid copolymer with phosphonate groups, sodium salt solution | Z |
| Aluminum sulfate (alternately Aluminium sulphate) solution | Y |
| 2-Amino-2-hydroxymethyl-1,3-propanediol solution | # |
| Ammonium hydrogen phosphate solution | Z |
| Ammonium lignosulfonate (alternately lignosulphonate) solutions, see also Lignin liquor | Z |
| Ammonium nitrate solution (45% or less) | # |
| Ammonium phosphate, urea solution, see also Urea/Ammonium phosphate solution | # |
| Ammonium polyphosphate solution | Z |
| Ammonium sulfate (alternately sulphate) solution | Z |
| Ammonium thiosulfate (alternately thiosulphate) solution (60% or less) | Z |
| Apple juice | OS |
| Calcium bromide solution | Z |
| Calcium carbonate slurry | OS |
| Calcium chloride solution | Z |
| Calcium hydroxide slurry | Z |
| Calcium lignosulfonate (alternately lignosulphonate) solution, see also Lignin liquor | Z |
| Calcium nitrate solutions (50% or less) | Z |
| Calcium nitrate/Magnesium nitrate/Potassium chloride solution | Z |
| Caramel solutions | # |
| Chlorinated paraffins (C14-C17) (with 50% Chlorine or more, and less than 1% C13 or shorter chains) | X |
| Chlorinated paraffins (C14-C17) (with 52% Chlorine) | # |
| 2-Chloro-4-ethylamino-6-isopropylamino-5-triazine solution | # |
| 4-Chloro-2-methylphenoxyacetic acid, dimethylamine salt solution | Y |
| Choline chloride solutions | Z |
| Clay slurry | OS |
| Coal slurry | OS |
| Dextrose solution, see Glucose solution. | |
| Diethylenetriaminepentaacetic acid, pentasodium salt solution | Z |
| 1,4-Dihydro-9,10-dihydroxy anthracene, disodium salt solution | # |
| Dodecenylsuccinic acid, dipotassium salt solution | # |
| Drilling brine (containing Calcium, Potassium, or Sodium salts) (see also Potassium chloride solution (10% or more)) | # |
| Drilling brines, including: Calcium bromide solution, Calcium chloride solution and Sodium chloride solution (if non-flammable and non-combustible) | Z |
| Drilling brines (containing Zinc salts) | X |
| Drilling mud (low toxicity) (if non-flammable and non-combustible) | # |
| Ethylene-Vinyl acetate copolymer (emulsion) | Y |
| Ferric hydroxyethylethylenediamine triacetic acid, trisodium salt solution | # |
| Fish solubles (water-based fish meal extracts) | # |
| Fructose solution | # |
| Glucose solution | OS |
| Glycine, Sodium salt solution | Z |
| Glyphosate solution (not containing surfactant) | Y |
| Hexamethylenediamine adipate solution | # |
| Hexamethylenediamine adipate (50% in water) | Z |
| N-(Hydroxyethyl)ethylenediamine triacetic acid, trisodium salt solution | Y |
| Kaolin clay solution | # |
| Kaolin slurry | OS |
| Kraft pulping liquor (free alkali content, 1% or less) including: Black, Green, or White liquor | # |
| Lignin liquor (free alkali content, 1% or less) | Z |
| including: | |
| Ammonium lignosulfonate (alternately lignosulphonate) solution | Z |
| Calcium lignosulfonate (alternately lignosulphonate) solution | Z |
| Sodium lignosulfonate (alternately lignosulphonate) solution | Z |
| Ligninsulfonic (alternately ligninsulphonic) acid, Sodium salt solution | Z |
| Magnesium chloride solution | Z |
| Magnesium hydroxide slurry | Z |
| Magnesium sulfonate (alternately sulphonate) solution | # |
| Maltitol solution | OS |
| Microsilica slurry | OS |
| Milk | # |
| Molasses | OS |
| Molasses residue (from fermentation) | # |
| Naphthalenesulfonic (alternately Naphthalenesulphonic) acid-Formaldehyde copolymer, sodium salt solution | Z |
| Naphthenic acid, sodium salt solution | # |
| Nitrilotriacetic acid, trisodium salt solution | Y |
| Noxious liquid, NF, (1) n.o.s. (“trade name” contains “principal components”) ST 1, Cat X (if non-flammable and non-combustible) | X |
| Noxious liquid, NF, (3) n.o.s. (“trade name” contains “principal components”) ST 2, Cat X (if non-flammable and non-combustible) | X |
| Noxious liquid, NF, (5) n.o.s. (“trade name” contains “principal components”) ST 2, Cat Y (if non-flammable and non-combustible) | Y |
| Noxious liquid, NF, (7) n.o.s. (“trade name” contains “principal components”) ST 3, Cat Y (if non-flammable and non-combustible) | Y |
| Noxious liquid, NF, (9) n.o.s. (“trade name” contains “principal components”) ST 3, Cat Z (if non-flammable and non-combustible) | Z |
| Noxious liquid, NF, (11) n.o.s. (“trade name” contains “principal components”) Cat Z (if non-flammable and non-combustible) | Z |
| Noxious liquid, NF, (12) n.o.s. (“trade name” contains “principal components”) Cat OS (if non-flammable and non-combustible) | OS |
| Orange juice (concentrated) | OS |
| Orange juice (not concentrated) | OS |
| Pentasodium salt of Diethylenetriaminepentaacetic acid solution, see Diethylenetriaminepentaacetic acid, pentasodium salt solution. | |
| Polyaluminum (alternately Polyaluminium) chloride solution | Z |
| Potassium chloride solution (26% or more), see Drilling brines, including: Calcium bromide solution, Calcium chloride solution, and Sodium chloride solution. | |
| Potassium chloride solution (less than 26%) | OS |
| Potassium formate solutions | Z |
| Potassium thiosulfate (alternately thiosulphate) (50% or less) | Y |
| Sewage sludge, treated (treated so as to pose no additional decompositional and fire hazard; stable, non-corrosive, non-toxic, non-flammable) | # |
| Silica slurry | # |
| Sludge, treated (treated so as to pose no additional decompositional and fire hazard; stable, non-corrosive, non-toxic, non-flammable) | # |
| Sodium acetate, Glycol, Water mixture (containing 1% or less Sodium hydroxide) (if non-flammable or non-combustible) | # |
| Sodium acetate solutions | Z |
| Sodium alkyl (C14-C17) sulfonates (alternately sulphonates) (60-65% solution) | Y |
| Sodium aluminosilicate slurry | Z |
| Sodium bicarbonate solution (less than 10%) | OS |
| Sodium carbonate solution | Z |
| Sodium hydrogen sulfide (alternately sulphide) (6% or less)/Sodium carbonate (3% or less) solution | Z |
| Sodium lignosulfonate (alternately lignosulphonate) solution, see also Lignin liquor | Z |
| Sodium naphthenate solution (free alkali content 3% or less), see Naphthenic acid, sodium salt solution. | |
| Sodium poly(4+)acrylate solutions | Z |
| Sodium silicate solution | Y |
| Sodium sulfate (alternately sulphate) solutions | Z |
| Sodium sulfite (alternately sulphite) solution (25% or less) | Y |
| Sodium thiocyanate solution (56% or less) | Y |
| Sorbitol solution | OS |
| Sulfonated (alternately Sulphonated) polyacrylate solution | Z |
| Tetrasodium salt of Ethylenediaminetetraaacetic acid solution, see Ethylenediaminetetraacetic acid, tetrasodium salt solution. | |
| Titanium dioxide slurry | Z |
| 1,1,1-Trichloroethane | Y |
| 1,1,2-Trichloro-1,2,2-trifluoroethane | Y |
| Trisodium salt of N-(Hydroxyethyl)ethylenediaminetriacetic acid solution, see N-(Hydroxyethyl)ethylenediaminetriacetic acid, trisodium salt solution. | |
| Urea, Ammonium mono- and di-hydrogen phosphate, Potassium chloride solution | # |
| Urea/Ammonium nitrate solution* | Z |
| Urea/Ammonium phosphate solution | Z |
| Urea solution | Z |
| Vanillin black liquor (free alkali content, 1% or less) | # |
| Vegetable protein solution (hydrolyzed) (if non-flammable and non-combustible) | OS |
| Water | OS |
| Zinc bromide, Calcium bromide solution, see Drilling brines (containing Zinc salts). |
Explanation of symbols and abbreviations used in this table:
“#” = No determination of noxious liquid substance status. For shipping on an oceangoing vessel, see 46 CFR 153.900(c).
Bolded entries were added from the March 2012 Annex to the 2007 edition of the IBC Code (MEPC 63/23/Add.1), the December 2012 IMO Marine Environmental Protection Committee Circular (MEPC.2/Circ.18), or the December 2013 IMO Marine Environmental Protection Committee Circular (MEPC.2/Circ.19).
“Cat” = Pollution category.
“NF” = Non-flammable (flash point greater than 60 °C (140°F) closed cup).
“n.o.s.” = Not otherwise specified.
“OS” = Other substances, 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 deballasting operations.
“see” = A redirection to the preferred, alternative cargo name-for example, in “Tetrasodium salt of Ethylenediaminetetraaacetic acid solution, see Ethylenediaminetetraacetic acid, tetrasodium salt solution,” the pollution category for “Tetrasodium salt of Ethylenediaminetetraaacetic acid solution” will be found under the preferred, alternative cargo name “Ethylenediaminetetraacetic acid, tetrasodium salt solution.”
“ST” = Ship type, as defined in Chapter 2 of the IBC Code.
“X, Y, Z” = Noxious liquid substance category of Annex II of MARPOL 73/78.
[78 FR 50208, Aug. 16, 2013, as amended at USCG-2013-0423, 85 FR 21728, Apr. 17, 2020]
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