Waste Management Act, 1996


Hazardous Waste

Section 4 (2).

Part I

Categories or Generic Types of Hazardous Waste

Category I Waste

1. Anatomical substances, hospital or other clinical waste.

2. Pharmaceutical, medicinal or veterinary compounds.

3. Wood preservatives.

4. Biocides or phyto-pharmaceutical substances.

5. Residue from substances employed as solvents.

6. Halogenated organic substances not employed as solvents, excluding inert polymerized materials.

7. Tempering salts containing cyanides.

8. Mineral oils or oily substances (including cutting sludges).

9. Mixtures or emulsions of oil and water or hydrocarbon and water.

10. Substances containing polychlorinated biphenyls or polychlorinated terphenyls (including dielectrics).

11. Tarry materials arising from refining, distillation or any pyrolytic treatment (including still bottoms).

12. Inks, dyes, pigments, paints, lacquers or varnishes.

13. Resins, latex, plasticizers, glues or adhesives.

14. Chemical substances arising from research and development or teaching activities (including laboratory residues) which are not identified or are new and whose effects on humans or the environment are not known.

15. Pyrotechnics or other explosive materials.

16. Photographic chemicals or processing materials.

17. Any material contaminated with any congener of polychlorinated dibenzo-furan.

18. Any material contaminated with any congener of polychlorinated dibenzo-p-dioxin.

Category II Waste

19. Animal or vegetable soaps, fats or waxes.

20. Non-halogenated organic substances not employed as solvents.

21. Inorganic substances without metals or metal compounds.

22. Ashes or cinders.

23. Soil, sand or clay (including dredging spoils).

24. Non-cyanidic tempering salts.

25. Metallic dust or powder.

26. Spent catalyst materials.

27. Liquids or sludges containing metals or metal compounds.

28. Residue (other than the substances mentioned in paragraphs 29, 30 and 33) from pollution control operations (including baghouse dusts).

29. Scrubber sludges.

30. Sludges from water purification plants.

31. Decarbonization residue.

32. Ion-exchange column residue.

33. Sewage sludges, untreated or unsuitable for use in agriculture.

34. Residue from cleaning of tanks or equipment.

35. Contaminated equipment.

36. Contaminated containers (including packaging and gas cylinders).

37. Batteries or other electrical cells.

38. Vegetable oils.

39. Materials resulting from the selective collection of waste from households.

40. Any other waste.

Part II

Constituents of Category II Waste which render it hazardous when it has the properties specified in Part III

41. Beryllium or beryllium compounds.

42. Vanadium compounds.

43. Chromium (VI) compounds.

44. Cobalt compounds.

45. Nickel compounds.

46. Copper compounds.

47. Zinc compounds.

48. Arsenic or arsenic compounds.

49. Selenium or selenium compounds.

50. Silver compounds.

51. Cadmium or cadmium compounds.

52. Tin compounds.

53. Antimony or antimony compounds.

54. Tellurium or tellurium compounds.

55. Barium compounds, excluding barium sulphate.

56. Mercury or mercury compounds.

57. Thallium or thallium compounds.

58. Lead or lead compounds.

59. Inorganic sulphides.

60. Inorganic fluorine compounds, excluding calcium fluoride.

61. Inorganic cyanides.

62. Any of the following alkaline or alkaline earth metals, namely, lithium, sodium, potassium, calcium, magnesium in uncombined form.

63. Acidic solutions or acids in solid form.

64. Basic solutions or bases in solid form.

65. Asbestos (dust or fibres).

66. Phosphorus: phosphorus compounds, excluding mineral phosphates.

67. Metal carbonyls.

68. Peroxides.

69. Chlorates.

70. Perchlorates.

71. Azides.

72. Polychlorinated biphenyls or polychlorinated terphenyls.

73. Pharmaceutical or veterinary compounds.

74. Biocides or phyto-pharmaceutical substances (including pesticides).

75. Infectious substances.

76. Creosotes.

77. Isocyanates or thiocyanates.

78. Organic cyanides (including nitriles).

79. Phenols or phenol compounds.

80. Halogenated solvents.

81. Organic solvents, excluding halogenated solvents.

82. Organohalogen compounds, excluding inert polymerized materials and other substances referred to in this Part.

83. Aromatic compounds; polycyclic and heterocyclic organic compounds.

84. Aliphatic amines.

85. Aromatic amines.

86. Ethers.

87. Substances of an explosive character, excluding those referred to elsewhere in this Part.

88. Sulphur organic compounds.

89. Any congener of polychlorinated dibenzo-furan.

90. Any congener of polychlorinated dibenzo-p-dioxin.

91. Hydrocarbons and their oxygen, nitrogen or sulphur compounds not otherwise referred to in this Part.

Part III

Properties of Waste which render it hazardous

There is set out in each paragraph of this Part a general term denoting a particular property of waste which renders it hazardous, followed by an explanation of such general term by reference to a description of substances or preparations which possess the particular property.

92. “Explosive”: substances or preparations which may explode under the effect of flame or which are more sensitive to shocks or friction than dinitrobenzene.

93. “Oxidizing”: substances or preparations which exhibit highly exothermic reactions when in contact with other substances, particularly flammable substances.

94. “Highly flammable”:

(a) liquid substances or preparations having a flash point below 21°C (including extremely flammable liquids), or

(b) substances or preparations which may become hot and finally catch fire in contact with air at ambient temperature without any application of energy, or

(c) solid substances or preparations which may readily catch fire after brief contact with a source of ignition and which continue to burn or to be consumed after removal of the source of ignition, or

(d) gaseous substances or preparations which are flammable in air at normal pressure, or

(e) substances or preparations which, in contact with water or damp air, evolve highly flammable gases in dangerous quantities.

95. “Flammable”: liquid substances or preparations having a flash point of not less than 21°C and not more than 55°C.

96. “Irritant”: non-corrosive substances or preparations which, through immediate, prolonged or repeated contact with the skin or mucous membrane, can cause inflammation.

97. “Harmful”: substances or preparations which, if they are inhaled or ingested or if they penetrate the skin, may involve limited health risks.

98. “Toxic”: substances or preparations (including very toxic substances or preparations) which, if they are inhaled or ingested or if they penetrate the skin, may cause serious, acute or chronic health risks or death.

99. “Carcinogenic”: substances or preparations which, if they are inhaled or ingested or if they penetrate the skin, may induce cancer or increase its incidence.

100. “Corrosive”: substances or preparations which may destroy living tissue on contact.

101. “Infectious”: substances containing viable micro-organisms or their toxins which are known or reliably believed to cause disease in humans or other living organisms.

102. “Teratogenic”: substances or preparations which, if they are inhaled or ingested or if they penetrate the skin, may induce non-hereditary congenital malformations or increase their incidence.

103. “Mutagenic”: substances or preparations which, if they are inhaled or ingested or if they penetrate the skin, may induce hereditary genetic defects or increase their incidence.

104. “Ecotoxic”: substances or preparations which present or may present immediate or delayed risks for one or more sectors of the environment.

105. “Residuary hazardous property”:

(a) substances or preparations which release toxic or very toxic gases in contact with water, air or an acid, or

(b) substances or preparations capable by any means, after being disposed of, of yielding another substance which possesses any property referred to in this or any other paragraph of this Part.