Prioritized Major Source Categories------------------------------------------------------------------------
Priority Number \1\ Source Category------------------------------------------------------------------------1. Synthetic Organic Chemical Manufacturing
Industry (SOCMI) and Volatile Organic
Liquid Storage Vessels and Handling
Equipment
(a) SOCMI unit processes
(b) Volatile organic liquid (VOL) storage
vessels and handling equipment
(c) SOCMI fugitive sources
(d) SOCMI secondary sources2. Industrial Surface Coating: Cans3. Petroleum Refineries: Fugitive Sources4. Industrial Surface Coating: Paper5. Dry Cleaning
(a) Perchloroethylene
(b) Petroleum solvent6. Graphic Arts7. Polymers and Resins: Acrylic Resins8. Mineral Wool (Deleted)9. Stationary Internal Combustion Engines10. Industrial Surface Coating: Fabric11. Industrial-Commercial-Institutional Steam
Generating Units.12. Incineration: Non-Municipal (Deleted)13. Non-Metallic Mineral Processing14. Metallic Mineral Processing15. Secondary Copper (Deleted)16. Phosphate Rock Preparation17. Foundries: Steel and Gray Iron18. Polymers and Resins: Polyethylene19. Charcoal Production20. Synthetic Rubber
(a) Tire manufacture
(b) SBR production21. Vegetable Oil22. Industrial Surface Coating: Metal Coil23. Petroleum Transportation and Marketing24. By-Product Coke Ovens25. Synthetic Fibers26. Plywood Manufacture27. Industrial Surface Coating: Automobiles28. Industrial Surface Coating: Large
Appliances29. Crude Oil and Natural Gas Production30. Secondary Aluminum31. Potash (Deleted)32. Lightweight Aggregate Industry: Clay,
Shale, and Slate \2\33. Glass34. Gypsum35. Sodium Carbonate36. Secondary Zinc (Deleted)37. Polymers and Resins: Phenolic38. Polymers and Resins: Urea-Melamine39. Ammonia (Deleted)40. Polymers and Resins: Polystyrene41. Polymers and Resins: ABS-SAN Resins42. Fiberglass43. Polymers and Resins: Polypropylene44. Textile Processing45. Asphalt Processing and Asphalt Roofing
Manufacture46. Brick and Related Clay Products
47. Ceramic Clay Manufacturing (Deleted)48. Ammonium Nitrate Fertilizer49. Castable Refractories (Deleted)50. Borax and Boric Acid (Deleted)51. Polymers and Resins: Polyester Resins52. Ammonium Sulfate53. Starch54. Perlite55. Phosphoric Acid: Thermal Process
(Deleted)56. Uranium Refining57. Animal Feed Defluorination (Deleted)58. Urea (for fertilizer and polymers)59. Detergent (Deleted)
Other Source Categories
Lead acid battery manufacture \3\Organic solvent cleaning \3\Industrial surface coating: metal furniture \3\Stationary gas turbines \4\Municipal solid waste landfills \4\
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\1\ Low numbers have highest priority, e.g., No. 1 is high priority,
No. 59 is low priority.\2\ Formerly titled ``Sintering: Clay and Fly Ash''.\3\ Minor source category, but included on list since an NSPS is being
developed for that source category.\4\ Not prioritized, since an NSPS for this major source category has
already been promulgated. [47 FR 951, Jan. 8, 1982, as amended at 47 FR 31876, July 23, 1982; 51 FR 42796, Nov. 25, 1986; 52 FR 11428, Apr. 8, 1987; 61 FR 9919, Mar. 12, 1996]