Schedule 3
| Hazardous Constituents That Require Environmental Control | |
| Hazardous Constituent | Concentration by Mass (mg/Kg) |
| Acetaldehyde | 100.0 |
| Acetaldehyde ammonia | 100.0 |
| Acetic acid | 100.0 |
| Acetic anhydride | 100.0 |
| Acetone cyanohydrin | 100.0 |
| Acetyl bromide | 100.0 |
| Acetyl chloride | 100.0 |
| Acrolein, inhibited | 100.0 |
| Acrylonitrile, inhibited | 100.0 |
| Adipic acid | 100.0 |
| Allethrin | 100.0 |
| Allyl alcohol | 100.0 |
| Allyl chloride | 100.0 |
| Aluminum sulphate, solid | 100.0 |
| N-Aminopropylmorpholine | 100.0 |
| Ammonia | 100.0 |
| Ammonia solutions or Ammonium hydroxide | 100.0 |
| Ammonium acetate | 100.0 |
| Ammonium benzoate | 100.0 |
| Ammonium bicarbonate | 100.0 |
| Ammonium bisulphite | 100.0 |
| Ammonium carbamate | 100.0 |
| Ammonium carbonate | 100.0 |
| Ammonium chloride | 100.0 |
| Ammonium citrate, dibasic | 100.0 |
| Ammonium oxalate | 100.0 |
| Ammonium sulphamate | 100.0 |
| Ammonium sulphide | 100.0 |
| Ammonium tartrate | 100.0 |
| Ammonium thiocyanate | 100.0 |
| Ammonium thiosulphate | 100.0 |
| Amyl acetates | 100.0 |
| Aniline | 100.0 |
| Antimony pentachloride | 100.0 |
| Antimony potassium tartrate | 100.0 |
| Antimony tribromide | 100.0 |
| Antimony trichloride | 100.0 |
| Antimony trioxide | 100.0 |
| Benzidine | 100.0 |
| Benzoic acid | 100.0 |
| Benzonitrile | 100.0 |
| Benzoyl chloride | 100.0 |
| Benzyl chloride | 100.0 |
| Beryllium chloride | 100.0 |
| Butyl acetates | 100.0 |
| n-Butylamine | 100.0 |
| n-Butyl phthalate | 100.0 |
| Calcium hypochlorite | 100.0 |
| Captan | 100.0 |
| Carbon disulphide or Carbon bisulphide | 100.0 |
| Chlordecone | 100.0 |
| 2-Chlorophenol | 100.0 |
| Chlorosulphonic acid (with or without sulphur trioxide) | 100.0 |
| Cobaltous bromide | 100.0 |
| Cobaltous formate | 100.0 |
| Cobaltous sulphamate | 100.0 |
| Copper - based Pesticides (all forms) | 100.0 |
| Copper chloride | 100.0 |
| Coumaphos | 100.0 |
| Creosote | 100.0 |
| Crotonaldehyde | 100.0 |
| Cupric acetate | 100.0 |
| Cupric oxalate | 100.0 |
| Cupric sulphate | 100.0 |
| Cupric sulphate, ammoniated | 100.0 |
| Cupric tartrate | 100.0 |
| Cyclohexane | 100.0 |
| Dichlobenil | 100.0 |
| Dichlone | 100.0 |
| 1,1-Dichloro-2,2-di-(p-chlorophenyl)ethane (also known as TDE) | 100.0 |
| Dichlorodiphenyltrichloroethane | 100.0 |
| Dichloroethyl ether, 2,2- | 100.0 |
| Dichloropropene | 100.0 |
| 2,2-Dichloropropionic acid | 100.0 |
| Dichlorvos | 100.0 |
| Dicofol | 100.0 |
| Diethylamine | 100.0 |
| Dimethylamine | 100.0 |
| Dinitrobenzenes | 100.0 |
| Dinitrophenol | 100.0 |
| Dinitrotoluenes* (excluding 2,4-dinitrotoluene) | 100.0 |
| Disulfoton | 100.0 |
| Endosulfan | 100.0 |
| Epichlorohydrin | 100.0 |
| Ethion | 100.0 |
| Ethylbenzene | 100.0 |
| Ethylenediamine | 100.0 |
| Ethylenediaminetetraacetic acid or EDTA | 100.0 |
| Ethylene dibromide | 100.0 |
| Ethylene dichloride | 100.0 |
| Ferric ammonium citrate | 100.0 |
| Ferric ammonium oxalate | 100.0 |
| Ferric chloride | 100.0 |
| Ferric nitrate | 100.0 |
| Ferric sulphate | 100.0 |
| Ferrous ammonium sulphate | 100.0 |
| Ferrous chloride | 100.0 |
| Ferrous sulphate | 100.0 |
| Formaldehyde | 100.0 |
| Formic acid | 100.0 |
| Fumaric acid | 100.0 |
| Furfural | 100.0 |
| Hexachlorocyclopentadiene | 100.0 |
| Isobutyl acetate | 100.0 |
| Isobutylamine | 100.0 |
| Isobutyric acid | 100.0 |
| Isoprene | 100.0 |
| Kelthane | 100.0 |
| Kepone | 100.0 |
| Maleic anhydride, or Maleic acid | 100.0 |
| Mercaptodimethur | 100.0 |
| Methyl bromide and ethylene dibromide mixtures | 100.0 |
| Methyl methacrylate monomer | 100.0 |
| Methylamine | 100.0 |
| Mevinphos | 100.0 |
| Mexacarbate | 100.0 |
| Naled | 100.0 |
| Naphthalene | 100.0 |
| Naphthenic acid (Hexahydrobenzoic acid) | 100.0 |
| Nickel ammonium sulphate | 100.0 |
| Nickel chloride | 100.0 |
| Nickel hydroxide | 100.0 |
| Nickel sulphate | 100.0 |
| Nitrophenols (o-,m-,p-) | 100.0 |
| Nitrotoluenes, (o-,m-, p-) | 100.0 |
| Organotin compounds (all forms) | 100.0 |
| Organotin Pesticides (all forms) | 100.0 |
| Oxalates, water soluble | 100.0 |
| Paraformaldehyde | 100.0 |
| Phencapton | 100.0 |
| Phenol | 100.0 |
| Phosphorous | 100.0 |
| Phosphorus oxychloride | 100.0 |
| Phosphorus pentasulphide | 100.0 |
| Phosphorus trichloride | 100.0 |
| Phosphorus, amorphous or Phosphorus, red | 100.0 |
| Phosphorus, white | 100.0 |
| Phosphorus, white or yellow | 100.0 |
| Polychlorinated biphenyls (PCB) | 50.0 |
| Potassium permanganate | 100.0 |
| Propargite | 100.0 |
| Propionic acid | 100.0 |
| Propionic anhydride | 100.0 |
| Propylene dichloride | 100.0 |
| Propylene oxide | 100.0 |
| Pyrethrins | 100.0 |
| Quinoline | 100.0 |
| Resorcinol | 100.0 |
| Silver nitrate | 100.0 |
| Sodium bisulphite | 100.0 |
| Sodium dodecylbenzene sulphonate (branched chain) | 100.0 |
| Sodium hydrogen sulphite | 100.0 |
| Sodium hydrosulphide | 100.0 |
| Sodium methylate | 100.0 |
| Sodium phosphate, dibasic | 100.0 |
| Sodium phosphate, tribasic | 100.0 |
| Strychnine or Strychnine mixtures | 100.0 |
| Strychnine salts or Strychnine salt mixtures | 100.0 |
| Styrene monomer | 100.0 |
| Sulphur monochloride | 100.0 |
| TDE / 1,1-Dichloro-2,2-di-(p-chlorophenyl)ethane | 100.0 |
| Tetrachloroethane | 100.0 |
| Tetraethyl Pyrophosphate | 100.0 |
| Thallium sulphate | 100.0 |
| Thiram | 100.0 |
| Titanium sulphate | 100.0 |
| Toluene | 100.0 |
| Triazine Pesticides (all forms, other than those listed in Part 1) | 100.0 |
| Trichlorphon | 100.0 |
| Triethylamine | 100.0 |
| Trimethylamine | 100.0 |
| Vanadium pentoxide | 100.0 |
| Vanadyl sulphate | 100.0 |
| Vinyl acetate | 100.0 |
| Xylenes | 100.0 |
| Xylenols | 100.0 |
| Zinc acetate | 100.0 |
| Zinc ammonium chloride | 100.0 |
| Zinc carbonate | 100.0 |
| Zinc chloride | 100.0 |
| Zinc formate | 100.0 |
| Zinc phenolsulphonate | 100.0 |
| Zinc phosphide | 100.0 |
| Zinc sulphate | 100.0 |
| Zirconium sulphate | 100.0 |