There are 64 types (listed below) of polluting industries/industrial activities, which are classified as "Red Category" industries on the basis of their emissions/discharges of high/significant polluting potential or generating hazardous wastes. These include large, medium as well as small scale industries.

Industries identified by Ministry of Environment & Forests, Govt. of India as heavily Polluting and covered under Central Action Plan, viz.;

Industries manufacturing following products or carrying out following activities:

18. Tyres and Tubes Vulcanisation/ Retreading/molding

19. Synthetic rubber

20. Glass and fibre glass production and processing

21. Industrial carbon including electrodes and graphite blocks, activated carbon, carbon black etc.

22. Paints and Varnishes (excluding blending/mixing)

23. Pigments and intermediates

24. Synthetic resins

25. Petroleum products involving storage, transfer or processing

26. Lubricating oils, greases or petroleum – based products

27. Synthetic fibre including rayon, tyre cord, polyester filament yarn

28. Surgical and medical products involving prophylactics and latex.

29. Synthetic detergent and soap

30. Photographic films and chemicals

31. Chemical, petrochemical and electrochemicals including manufacture of acids such as Sulphuric Acid, Nitric Acid, Phosphoric Acid etc.

32. Industrial or inorganic gases

33. Chlorates, perchlorates and peroxides

34. Glue and gelatine

35. Yarn and Textile processing involving scouring, bleaching, dyeing, printing or any effluent/emission generating process

36. Vegetable oils including solvent extracted oils, hydrogenated oils.

37. Industry or process involving metal treatment or process such as pickling, surface coating, paint baking, paint stripping, heat treatment, phosphating or finishing etc.

38. Industry or process involving electroplating operations

39. Asbestos and asbestos based industries

40. Slaughter houses and meat processing industries

41. Fermentation industry including manufacture of yeast, beer etc.

42. Steel and steel products including coke plants involving use of any of the equipment’s such as blast furnaces, open hearth furnace, induction furnace or an arc furnace etc. or any of the operations or processes such as heat treatment, acid pickling, rolling or galvanising etc.

43. Incineration plants

44. Power generating plants (excluding D.G. Sets)

45. Lime manufacturing

46. Tobacco products including cigarettes and tobacco processing

47. Dry coal processing/Mineral processing industries like ore sintering, palletisation etc.

48. Phosphate rock processing plants

49. Coke making, coal liquefaction, coaltar distillation or fuel gas making

50. Phosphorous and its compounds

51. Explosives including detonators, fuses etc.

52. Fire crackers

53. Processes involving chlorinated hydrocarbons

54. Chlorine, Fluorine, bromine, iodine and their compounds

55. Hydrocyanic acid and its derivatives

56. Milk processing and dairy products (Integrated Project)

57. Industry or process involving foundry operations

58. Potable alcohol (IMFL) by blending or distillation of alcohol

59. Anodizing

60. Ceramic/refractories

61. Lead processing and battery reconditioning & manufacturing including lead smelting

62. Hot mix plants

63. Hospitals

64. Mining and ore-benificiation