
1 
These Regulations may be cited as the Merchant Shipping (Control of Pollution by Noxious Liquid Substances in Bulk) (Amendment) Regulations 1990 and shall come into force on 1st January 1991.
2 
The Merchant Shipping (Control of Pollution by Noxious Liquid Substances in Bulk) Regulations 1987 are hereby amended as follows:
(i) in regulation 1(2)—
(a) in the definition “BCH Code” replace “(1986 Edition)” by “(1990 Edition)”;
(b) in the definition “BCH Code Regulations” after “the Merchant Shipping (BCH Code) Regulations 1987(a)” add “as amended”;
(c) in the definition “class-approved” in sub-paragraph (a) delete the words “Table 3 of Merchant Shipping Notice No.M.1270” and replace by “Schedule 4 hereto”;
(d) in the definition “IBC Code” replace “(1986 Edition)” by “(1990 Edition)”;
(e) in the definition “IBC Code Regulations” after “the Merchant Shipping (IBC Code) Regulations 1987(b)” add “as amended”;
(f) in the definition “MARPOL 73/78” after “as amended (a)” add “and as further amended by amendments adopted on 17th March 1989 by the Marine Environment Protection Committee of the International Maritime Organization”;
(ii) in regulation 30 after “the Merchant Shipping (Prevention of Pollution by Noxious Liquid Substances in Bulk) Regulations 1987” add “as amended”;
(iii) replace Schedule 1 by the following—“
SCHEDULE 1
Regulations 1(2), 2 to 13, 16, 17 and 28


Substance UN Number I Pollution Category for operational discharge II Residual Concentration (percent by weight)
   III IV
   Outside special areas Within special areas
Acetaldehyde 1089 C
Acetic acid 2789 D
Acetic anhydride 1715 D
Acetone cyanohydrin 1541 A 0.1 0.05
Acrylamide solution(50% or less) 2074 D
Acrylic acid 2218 D
Acrylonitrile 1093 B
Adiponitrile 2205 D
Alcohol (C12-C15) poly(1-3) ethoxylates  A 0.1 0.05
Alcohol (C12-C15) poly(3-11) ethoxylates  A 0.1 0.05
Alcohol (C6-C17) (secondary) poly(3-6) ethoxylates  A 0.1 0.05
Alcohol (C6-C17) (secondary) poly(7-12) ethoxylates  B
Alkyl acrylate-vinylpyridine copolymer in toluene  C
Alkyl (C9-C17) benzenes  D
Alkyl benzene sulphonic acid 2584, 2586 C
Alkyl benzene sulphonicacid, sodium salt solution  C
Allyl alcohol 1098 B
Allyl chloride 1100 B
Aluminium chloride (30% or less)/Hydrochloric acid (20% or less) solution  D
Aluminium sulphate solution  D
2-(2-Aminoethoxy) ethanol 3055 D
Aminoethyl ethanolamine  D
N-Aminoethylpiperazine 2815 D
2-Amino-2-methyl-1-propanol (90% or less)  D
Ammonia aqueous (28% or less) 2672 C
Ammonium nitrate solution (93% or less)  D
Ammonium sulphate solution  D
Ammonium sulphidesolution (45% or less) 2683 B
Ammonium thiocyanate (25% or less)/Ammonium thiosulphate (20% or less) solution  C
Ammonium thiosulphatesolution (60% or less)  C
n-Amyl acetate 1104 C
sec-Amyl acetate 1104 C
Amyl acetate, commercial 1104 C
n-Amyl alcohol 1105 D
sec-Amyl alcohol 1105 D
Amyl alcohol, primary 1105 D
Aniline 1547 C
Animal and fish oils, n.o.s. including: Cod liver oil Sperm oil  D
Aviation alkylates (C8 paraffins and iso-paraffins BPT 95-120 C)  C
Benzene and mixtures having 10% benzene or more 1114 C
Benzene sulphonylchloride 2225 D
Benzyl acetate  C
Benzyl alcohol  C
Benzyl chloride 1738 B
Brake fluid base mix: (Poly(2-8) alkylene (C2-C3) glycols/Polyalkylene (C2-C10) glycols monoalkyl(C1-C4) ethers and their borate esters  D
Butene oligomer  B
n-Butyl acetate 1123 D
sec-Butyl acetate 1123 C
n-Butyl acrylate 2348 B
Butylamine(all isomers)  C
Butylbenzenes (all isomers) 2709  A 0.1 0.05
Butyl benzyl phthalate  A 0.1 0.05
n-Butyl butyrate  C
Butyl/Decyl/Cetyl/Eicosyl methacrylate mixture  D
Butylene glycol  D
1,2-Butylene oxide 3022 C
n-Butyl ether 1149 C
Butyl lactate  D
Butyl methacrylate  D
n-Butyraldehyde 1129 B
Butyric acid 2820 D
gamma-Butyrolactone  D
Calcium alkyl salicylate  C
Calcium hydroxide slurry  D
Calcium hypochloritesolution (15% or less)  C
Calcium hypochloritesolution (more than 15%)  B
Calcium naphthenate in mineral oil  A 0.1 0.05
Camphor oil 1130 B
epsilon-Caprolactam (molten or aqueous solutions)  D
Carbolic oil  A 0.1 0.05
Carbon disulphide 1131 B
Carbon tetrachloride 1846 B
Cashew nut shell oil (untreated)  D
Chlorinated paraffins (C10-C13)  A 0.1 0.05
Chloroacetic acid (80%or less) 1750 C
Chlorobenzene 1134 B
Chloroform 1888 B
Chlorohydrins (crude)  D
o-Chloronitrobenzene 1578 B
2-or 3-Chloropropionic acid  C
Chlorosulphonic acid 1754 C
m-Chlorotoluene 2238 B
o-Chlorotoluene 2238 A 0.1 0.05
p-Chlorotoluene 2238 B
Chlorotoluenes (mixed0.10.5 isomers) 2238 A
Choline chloride solutions  D
Citric acid  D
Coal tar  A 0.1 0.05
Coal tar naphtha solvent  B
Coal tar pitch (molten)  D
Cobalt naphthenate in solvent naphtha  A 0.1 0.05
Coconut oil fatty acid  C
Coconut oil fatty acid methyl ester  D
Creosote (coal tar)  A 0.1 0.05
Creosote (wood)  A 0.1 0.05
Cresols (all isomers) 2076 A 0.1 0.05
Cresylic acid, sodium salt solution  A 0.1 0.05
Crotonaldehyde 1143 B
Cycloheptane 2241 C
Cyclohexane 1145 C
Cyclohexanol  C
Cyclohexanone 1915 D
Cyclohexyl acetate  B
Cyclohexylamine 2357 C
1,3-Cyclopentadienedimer (molten)  B
Cyclopentane 1146 C
Cyclopentene  B
p-Cymene 2046 C
Decahydronaphthalene 1147 D
Decanoic acid  C
Decene  B
Decyl acrylate  A 0.1 0.05
Decyl alcohol(all isomers)  B
Decylbenzene  D
Diacetone alcohol 1148 D
Dialkyl (C7-C13) phthalates  D
Dibutylamine  C
Dibutyl phthalate  A 0.1 0.05
Dichlorobenzenes (allisomers) 1592 B
1,1-Dichloroethane 2362 B
Dichloroethyl ether 1916 B
1,6-Dichlorohexane  B
2,2'-Dichloroisopropylether 2490 C
Dichloromethane 1593 D
2,4-Dichlorophenol 2021 A 0.1 0.05
2,4-Dichlorophenoxyacetic acid, diethanolamine salt solution  A 0.1 0.05
2,4-Dichlorophenoxyacetic acid, dimethylamine salt solution (70% or less)  A 0.1 0.05
2,4-Dichlorophenoxyacetic acid, triisopropanolamine salt solution  A 0.1 0.05
1,1-Dichloropropane  B
1,2-Dichloropropane 1279 B
1,3-Dichloropropane  B
1,3-Dichloropropene 2047 B
Dichloropropene/Dichloropropane mixtures  B
2,2-Dichloropropionic acid  D
Diethylamine 1154 C
Diethylaminoethanol 2686 C
Diethylbenzene 2049 C
Diethylene glycol butyl ether acetate  D
Diethylene glycol dibutyl ether  D
Diethylene glycol ethyl ether acetate  D
Diethylene glycol methylether  C
Diethylene glycol methyl ether acetate  D
Diethylenetriamine 2079 D
Di-(2-ethylhexyl) adipate  D
Di-(2-ethylhexyl) phosphoric acid 1902 C
Diethyl phthalate  C
Diethyl sulphate 1594 B
Diglycidyl ether ofbisphenol  A
Diglycidyl ether of bisphcnol F  B
Di-n-hexyl adipate  B
1,4-Dihydro-9, 10-dihydroxy anthracene, disodium salt solution  D
Diisobutylamine 2361 C
Diisobutylene 2050 B
Diisobutyl ketone 1157 D
Diisobutyl phthalate  B
Diisodecyl phthalate  B
Diisononyl adipate  D
Diisopropanolamine  C
Diisopropylamine 1158 C
Diisopropylbenzene (all isomers)  A 0.1 0.05
Diisopropyl naphthalene  D
N,N-Dimethylacetamide solution (40% or less)  D
Dimethyl adipate  B
Dimethylamine solution (45% or less) 1160 C
Dimethylamine solution (greater than 45% but not greater than 55%) 1160 C
Dimethylamine solution (greater than 55% but not greater than 65%) 1160 C
N,N-Dimethylcyclohexylamine 2264 C
Dimethylethanolamine 2051 D
Dimethylformamide 2265 D
Dimethyl glutarate  C
Dimethyl octanoic acid  C
Dimethyl phthalate  C
212-Dimethylpropane-1,3-dio 1  D
Dimethyl succinate  C
Dinitrotoluene (molten) 1600 B
Dinonyl phthalate  D
1,4-Dioxane 1165 D
Dipentene 2052 C
Diphenyl  A 0.1 0.05
Diphenyl/Diphenyl ether mixtures  A 0.1 0.05
Diphenyl ether  A 0.1 0.05
Diphenyl ether/Diphenyl phenyl ether mixture  A 0.1 0.05
Diphenylmethanediisocyanate 2489 B
Diphenylolpropane-epichlorohydrin resins  B
Di-n-propylamine 2383 C
Dipropylene glycol methyl ether  D
Ditridecyl phthalate  D
Diundecyl phthalate  D
Dodecene (all isomers)  B
Dodecenyl succinic acid, dipotassium salt solution  D
Dodecyl alcohol  B
Dodecyl diphenyl etherdisulphonate solution  B
Dodecyl phenol  A 0.1 0.05
Drilling brines, containing  A 0.1 0.05
Zinc salts
Epichlorohydrin 2023 C
Ethanolamine 2491 D
2-Ethoxyethanol 1171 D
2-Ethoxyethyl acetate 1172 C
Ethyl acetate 1173 D
Ethyl acetoacetate  D
Ethyl acrylate 1917 A 0.1 0.05
Ethylamine 1036 C
Ethylamine solutions (72% or less) 2270 C
Ethyl amyl ketone 2271 C
Ethylbenzene 1175 C
N-Ethylbutylamine  C
Ethyl butyrate 1180 C
Ethylcyclohexane  C
N-Ethylcyclohexylamine  D
Ethylene chlorohydrin 1135 C
Ethylene cyanohydrin  D
Ethylenediamine 1604 C
Ethylenediamine tetraacetic acid, tetrasodium salt solution  D
Ethylene dibromide 1605 B
Ethylene dichloride 1184 B
Ethylene glycol  D
Ethylene glycol acetate  D
Ethylene glycol butyl etheracetate  C
Ethylene glycol diacetate  C
Ethylene glycol isopropyl ether  D
Ethylene glycol methyl butyl ether  D
Ethylene glycol methylether 1188 D
Ethylene glycol methylether acetate 1189 D
Ethylene glycol phenyl ether  D
Ethylene glycol phenyl ether/Diethylene glycol phenyl ether mixture  D
Ethylene oxide/Propyleneoxide mixture with an Ethylene oxide content of not more than 30% in weight 2983 D
2-Ethylhexanoic acid  D
2-Ethylhexyl acrylate  B
2-Ethylhexylamine 2276 B
Ethylidene norbornene  B
Ethyl methacrylate 2277 D
o-Ethylphenol  A 0.1 0.05
Ethyl propionate 1195 D
2-Ethyl-3-propylacrolein  B
Ethyltoluene  B
Ferric chloride solutions 2582 C
Ferric hydroxyethyl ethylenediamine triacetic acid, trisodium salt solution  D
Ferric nitrate/Nitric acidsolution  C
Formaldehyde solutions (45% or less) 1198 2209 C
Formamide  D
Formic acid 1779 D
Fumaric adduct of rosin, water dispersion  B
Furfural 1199 C
Furfuryl alcohol 2874 C
Glutaraldehyde solutions (50% or less)  D
Glycidyl ester of C10 trialkylacetic acid  B
Glyoxal solution (40% or less)  D
Heptane (all isomers) 1206 C
n-Heptanoic acid  D
Heptanol (all isomers)  C
Heptene (all isomers)  C
Heptyl acetate  B
Hexamethylenediamine adipate (50% in water)  D
Hexamethylenediaminesolution 1783 C
Hexamethyleneimine 2493 C
Hexamethylenetetramine solutions  D
Hexane (all isomers) 1208 C
Hexanoic acid  D
Hexanol 2282 D
Hexene (all isomers)  C
Hexyl acetate 1233 B
Hydrochloric acid 1789 D
Hydrogen peroxide solutions 2014,(over 8% but not over 60%) 2984 C
Hydrogen peroxide solutions(over 60% but not over 70%) 2015 C
2-Hydroxyethyl acrylate  B
N-(Hydroxyethyl) ethylenediamine triacetic acid, trisodium salt solution  D
Isoamyl acetate 1104 C
Isoamyl alcohol 1105 D
Isobutyl acetate 1213 C
Isobutyl acrylate 2527 B
Isobutyl formate 2393 D
Isobutyraldehyde 2045 C
Isophorone  D
Isophoronediamine 2289 D
Isophorone diisocyanate 2290 B
Isoprene 1218 C
Isopropanolamine  C
Isopropylamine 1221 C
Isopropylbenzene 1918 B
Isopropylcyclohexane  C
Isopropyl ether 1159 D
Isovaleraldehyde 2058 C
Lactic acid  D
Lactonitrile solon (80% or less)  B
Latex (ammonia inhibited)  D
Lauric acid  B
Maleic anhydride 2215 D
Mercaptobenzothiazol, sodium salt solution  B
Mesityl oxide 1229 D
Metam sodium solution  A 0.1 0.05
Methacrylic acid 2531 D
Methacrylic resin in 1,2-Dichloroethane solution B
Methacrylonitrile 3079 B
3-Methoxybutyl acetate 2708 D
Methyl acetoacetate  D
Methyl acrylate 1919 B
Methylamine solutions (42%or less) 1235 C
Methylamyl acetate 1233 C
Methylamyl alcohol 2053 C
Methyl amyl ketone 1110 C
Methyl butenol  D
Methyl tert-butyl ether 2398
Methyl butyl ketone  D
Methyl butynol  D
Methyl butyrate 1237 C
Methylcyclohexane 2296 C
Methylcyclopentadiene dimer  B
2-Methyl-6-ethyl aniline  C
2-Methyl-5-ethyl pyridine 2300 B
Methyl formate 1243 D
Methyl heptyl ketone  B
Methyl isobutyl ketone 1245 D
Methyl methacrylate 1247 D
Methylnaphthalene  A 0.1 0.05
2-Methyl-1-pentene 2288 C
Methyl propyl ketone  D
2-Methylpyridine 2313 B
4-Methylpyridine 2313 B
N-Methyl-2-pyrrolidone  B
Methyl salicylate  B
alpha-Methylstyrene 2303 A 0.1 0.05
Morpholine 2054 D
Motor fuel anti-knock compounds 1649 A 0.1 0.05
Naphthalene (molten) 2304 A 0.1 0.05
Naphthalene sulphonic acid-formaldehyde copolymer, sodium salt solution  D
Naphthenic acids  A 0.1 0.05
Neodecanoic acid  C
Nitrating acid (mixture ofsulphuric and nitric acids) 1796 C
Nitric acid (less than 70%) 2031 C
Nitric acid (70% and over) 2031, 2032 C
Nitrilotriacetic acid, trisodium salt solution  D
Nitrobenzene 1662 B
o-Nitrophenol (molten) 1663 B
1-or 2-Nitropropane 2608 D
Nitropropane (60%)/Nitroethane (40%) mixture  D
o-or p-Nitrotoluenes 1664 C
Nonane (all isomers) 1920 C
Nonanoic acid (all isomers)  D
Nonene  B
Nonyl alcohol (all isomers)  C
Nonyl methacrylate monomer  D
Nonylphenol  A 0.1 0.05
Nonyl phenol poly(4-l2) ethoxylates  B
Octane (all isomers) 1262 C
Octanoic acid (all isomers)  D
Octanol (all isomers)  C
Octene (all isomers)  B
n-Octyl acetate  D
Octyl aldehydes  B
Octyl nitrates (all isomers)  A 0.1 0.05
Olefin mixtures (C5-C7)  C
Olefin mixtures (C5-Cl5) B
alpha-Olefins (C6-Cl8) mixtures  B
Oleic acid  D
Oleum 1831 C
Palm nut oil fatty acid  C
Palm oil fatty acid methyl ester  D
Palm stearin  D
Paraldehyde 1264 C
Pentachloroethane 1669 B
1,3-Pentadiene  C
Pentaethylenehexamine  D
Pentane (all isomers)1265  C
Pentanoic acid  D
Pentene (all isomers)  C
Perchloroethylene 1897 B
Phenol 2312 B
1-Phenyl-1-xylyl ethane  C
Phosphoric acid 1805 D
Phosphorus, yellow or white 1381, 2447 A 0.01 0.005
Phthalic anhydride (molten) 2214 C
Pinene 2368 B
Polyalkylene glycol butyl ether  D
Polyethylene polyamines C2735 2734
Polyferric sulphatesolution  C
Polymethylene polyphenyl isocyanate 2207
Polypropylene glycol  D
Potassium hydroxidesolution 1814 C
n-Propanolamine  C
beta-Propiolactone  D
Propionaldehyde 1275 D
Propionic acid 1848 D
Propionic anhydride 2496 C
Propionitrile 2404 C
n-Propyl acetate 1276 D
n-Propylamine 1277 C
n-Propylbenzene 2364 C
n-Propyl chloride  B
Propylene dimer  C
Propylene glycol ethyl ether  D
Propylene glycol methyl ether  D
Propylene glycol monoalkyl ether  D
Propylene oxide 1280 D
Propylene tetramer 2850 B
Propylene trimer 2057 B
Pyridine 1282 D
Rosin  B
Rosin soap(disproportionated) solution  B
Silicon tetrachloride  D
Sodium aluminate solution  C
Sodium borohydride (15% orless)/Sodium hydroxide solution  C
Sodium carbonate solution  D
Sodium dichromate solution(70% or less)  C
Sodium hydrogen sulphite solution (35% or less) 2693 D
Sodium hydrosulphide/Ammonium sulphide solution  B
Sodium hydrosulphide solution (45% or less) 2949 B
Sodium hydroxide solution 1824 D
Sodium hypochlorite solution (15% or less) 1791 C
Sodium nitrite solution  B
Sodium silicate solution  D
Sodium sulphide solution  B
Sodium sulphite solution  C
Sodium thiocyanate solution(56% or less)  B
Styrene monomer 2055 B
Sulpholane  D
Sulphuric acid 1830 C
Sulphuric acid, spent 1832 C
Tall oil (crude anddistilled)  B
Tall oil fatty acid (resinacids less than 20%)  C
Tall oil soap (disproportionated) solution  B
Tallow  D
Tallow fatty acid  D
Tetrachloroethane 1702 B
Tetraethylene pentamine 2320 D
Tetrahydrofuran 2056 D
Tetrahydronaphthalene  C
1,2,3,5-Tetramethylbenzene  C
Titanium tetrachloride 1838 D
Toluene 1294 C
Toluenediamine 1709 C
Toluene diisocyanate 2078 C
o-Toluidine 1708 C
Tributyl phosphate  B
1,2,4-Trichlorobenzene 2321 B
1,1,1-Trichloroethane 2831 B
1,1,2-Trichloroethane  B
Trichloroethylene 1710 B
1,2,3-Trichloropropane  B
1,1,2-Trichloro-1,2,2-tri-fluoroethane  C
Tricresyl phosphate (containing less than 1% ortho-isomer)  A 0.1 0.05
Tricresyl phosphate (containing 1% or more ortho-isomer) 2574 A 0.1 0.05
Triethanolamine  D
Triethylamine 1296 C
Triethylbenzene  A 0.1 0.05
Triethylene glycol ethyl ether  A
Triethylene glycol methyl ether  D
Triethylenetetramine 2259 D
Trimethylacetic acid  D
Trimethylamine  C
Trimethyl benzenes (allisomers)  B
Trimethylhexamethylenediamine(2,2,4-and 2,4,4-isomers) 2327 D
Trimethylhexamethylenediisocyanate (2,2,4-and 2,4,4-isomers) 2328 B
Trimethylol propane polyethoxylate  D
2,2,4-Trimethyl-1,3-pentanediol-1-isobutyrate  C
Tripropylene glycol methyl ether  D
Trixylyl phosphateA 0.1 0.05
Turpentine 1299 B
Undecanoic acid  C
1-Undecene  B
Undecyl alcohol  B
Urea/Ammonium mono-and di-hydrogen phosphate/Potassium chloride solution  D
Urea/Ammonium nitrate solution  D
Urea/Ammonium nitrate solution (containing aqua Ammonia)  C
Urea/Ammonium phosphate solution  D
n-Valeraldehyde 2058 D
Vegetable oil, n.o.s., including:
 Castor oil
 Coconut oil
 Corn oil
 Cottonseed oil
 Groundnut oil
 Linseed oil
 Olive oil
 Palm nut oil
 Palm oil
 Rape seed oil
 Rice bran oil
 Safflower oil
 Sesame oil
 Soya bean oil
 Sunflower oil
 Tung oil  D
Vinyl acetate 1301 C
Vinyl ethyl ether 1302 C
Vinylidene chloride 1303 B
Vinyl neodecanoate  B
Vinyltoluene 2618  A 0.1 0.05
White spirit, low (15-20%)aromatic 1300 B
Xylenes 1307 C
Xylenol 2261 B



”
(iv) replace Schedule 2 by the following—“
SCHEDULE 2
Regulations 1(2) and 15


Substance UN Number
Acetone 1090
Acetonitrile 1648 Alcoholic beverages, n.o.s.
Alcohols (C13 and above)
Aminoethyldiethanolamine/Amino ethylethanolamine solution
2-Amino-2-hydroxymethyl-1,3 propanediol solution (40% or less)
tert-Amyl alcohol 1105
Apple juice
Behenyl alcohol
Benzene tricarboxylic acid, trioctyl ester
n-Butyl alcohol 1120
sec-Butyl alcohol 1120
tert-Butyl alcohol 1120
Butyl stearate
Calcium carbonate slurry
Calcium nitrate/Magnesium nitrate/Potassium chloride solution
Cetyl/Eicosyl methacrylate mixture
Cetyl/Stearyl alcohol
Chlorinated paraffins (C14-C17) (with 52% chlorine) 
Clay slurry
Coal slurry
Dextrose solution
Diethanolamine Diethyl ether 1155
Diethylene glycol
Diethylene glycol butyl ether
Diethylene glycol diethyl ether
Diethylene glycol ethyl ether
Diethylenetriamine pentaacetic acid, pentasodium salt solution 
Diheptyl phthalate
Dihexyl phthalate
Diisooctyl phthalate
Dioctyl phthalate
Dipropylene glycol
Dodecane (all isomers)
Dodecyl benzene
Dodecyl methacrylate
Dodecyl/Pentadecyl methacrylate mixture
Drilling brines:
 Calcium bromide solution
 Calcium chloride solution
 Sodium chloride solution
Ethyl alcohol 1170
Ethylene carbonate
Ethylene glycol butyl ether 2369
Ethylene glycol tert-butyl ether
Ethylene-vinyl acetate copolymer (emulsion)
Fatty acids (saturated, C13 above)
Glucose solution
Glycerine
Glycerol polyalkoxylate
Glyceryl triacetate
Glycine, sodium salt solution
Hexamethylene glycol
Hexylene glycol
Isobutyl alcohol 1212
Isopropyl acetate 1220
Isopropyl alcohol 1219
Kaolin slurry
Lard
Latex: Carboxylated styrene-butadiene copolymer
Latex: Styrene-butadiene rubber
Lignin sulphonic acid, sodium salt solution
Magnesium chloride solution
Magnesium hydroxide slurry
3-Methoxy-1-butanol
Methyl acetate 1231
Methyl alcohol 1230
Methyl ethyl ketone
2-Methyl-2-hydroxy-3-butyne
3-Methyl-3-methoxy butanol
3-Methyl-3-methoxy butyl acetate
Molasses
Octyl decyl adipate
alpha-Olefins (C13-C20)
Olefins (C13 and above, all isomers)
n-Paraffins (C10-C20)
Paraffin wax
Petrolatum
Polyaluminium chloride solution
Polybutene
Polyethylene glycol dimethyl ether
Polyethylene glycol
Polypropylene glycol methyl ether
Polysiloxane
n-Propyl alcohol
Propylene glycol
Propylene-butylene copolymer
Sodium alumino silicate slurry
Sodium chlorate solution (50% or less 2428
Sorbitol solution
Sulphur (molten) 2448
Tetraethylene glycol
Tridecane
Tridecanoic acid
Triethylene glycol
Triethylene glycol butyl ether
Triisopropanolamine
Tripropylene glycol
Urea formaldehyde resin solution
Urea solution
Vegetable protein solution (hydrolysed)
Water”
(v) replace Schedule 3 by the following—“
SCHEDULE 3
Regulations 1(2), 18 and 28

 Aviation alkylates
 Cycloheptane
 Cyclohexane Cyclopentane
 p-Cymene
 Diethylbenzene
 Dipentene
 Ethylbenzene
 Ethylcyclohexane
 Heptene (all isomers)
 Hexane (all isomers)
 Hexene (all isomers)
 Isopropyl cyclohexane
 Methyl cyclohexane
 Nonane (all isomers)
 Octane (all isomers)
 Olefin mixtures (C5-C7)
 Pentane (all isomers)
 1-Phenyl-1-xylylethane
 Propylene dimer
 Tetrahydronaphthalene
 Toluene
 Xylenes

 Alkyl (C9-C17) benzenes
 Diisopropyl naphthalene
 Dodecane (all isomers)”
(vi) add as Schedule 4 the following—“
SCHEDULE 4
Regulations 1(2), 28


Substance Pollution Category for operational discharge Residual concentration (Percent by weight)
  Outside special areas Within special areas
Noxious liquid,N.F,(1) n.o.s. (trade name…contains…)S.T.1, Cat. A A 0.1 0.05
Noxious liquid,F,(2) n.o.s.(trade name…,contains…)S.T.1, Cat.A A 0.1 0.05
Noxious liquid,N.F,(3) n.o.s.(trade name…,contains…)S.T.2, Cat. A A 0.1 0.05
Noxious liquid.F,(4) n.o.s.(trade name…,contains…)S.T.2, Cat. A A 0.1 0.05
Noxious liquid,N.F,(5) n.o.s. (trade name…,contains…)S.T.2. B Cat. B
Noxious liquid.N.F,(6) n.o.s. (trade name…,contains…)S.T. 2, Cat. B. mp =(= 15=(°C B
Noxious liquid.F,(7) n.o.s.(trade name…,contains…)S.T.2, Cat. B B
Noxious liquid,F,(8) n.o.s.(trade name…,contains…)S.T.2, Cat. B, mp =(=, 15=(°C B
Noxious liquid,N.F,(9) n.o.s. (trade name…,contains…)S.T.3, Cat. A A 0.1 ).05
Noxious liquid.F,(10) n.o.s. (trade name…,contains…)S.T.3, 0.10.05 Cat. A A
Noxious liquid,N.F,(11) n.o.s. (trade name…,contains…)S.T.3, Cat. B B
Noxious liquid,N.F,(12) n.o.s. (trade name…,contains…)S.T.3, Cat. B, mp =(= 15=(°C B
Noxious liquid,F,(13) n.o.s. (trade name…,contains…)S.T.3, Cat. B B
Noxious liquid,F,(14) n.o.s. (trade name…,contains…)S.T.3, Cat. B, mp =(= 15=(°C B
Noxious liquid,N.F,(15) n.o.s. (trade name…,contains…)S.T.3, Cat. C C
Noxious liquid,F,(16) n.o.s. (trade name…,contains…)S.T.3, C Cat. C
Noxious liquid,(17) n.o.s. (trade name…,contains…)Cat D D
Noxious liquid,(18) n.o.s. (trade name…,contains…)App.III III
”
Signed by authority of the Secretary of State for Transport
Patrick McLoughlin
Parliamentary Under Secretary of State,
Department of Transport
19th December 1990