40 CFR § 60.16 - Priority list.

---
identifier: "/us/cfr/t40/s60.16"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 60.16 - Priority list."
title_number: 40
title_name: "Protection of Environment"
section_number: "60.16"
section_name: "Priority list."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "C"
subchapter_name: "AIR PROGRAMS"
part_number: "60"
part_name: "STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 7401"
regulatory_source: "36 FR 24877, Dec. 23, 1971, unless otherwise noted."
cfr_part: "60"
---


# 60.16 Priority list.

Prioritized Major Source Categories

|  |  |
| --- | --- |
| 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 sources |
| 2. | Industrial Surface Coating: Cans |
| 3. | Petroleum Refineries: Fugitive Sources |
| 4. | Industrial Surface Coating: Paper |
| 5. | Dry Cleaning |
|  | (a) Perchloroethylene |
|  | (b) Petroleum solvent |
| 6. | Graphic Arts |
| 7. | Polymers and Resins: Acrylic Resins |
| 8. | Mineral Wool (Deleted) |
| 9. | Stationary Internal Combustion Engines |
| 10. | Industrial Surface Coating: Fabric |
| 11. | Industrial-Commercial-Institutional Steam Generating Units. |
| 12. | Incineration: Non-Municipal (Deleted) |
| 13. | Non-Metallic Mineral Processing |
| 14. | Metallic Mineral Processing |
| 15. | Secondary Copper (Deleted) |
| 16. | Phosphate Rock Preparation |
| 17. | Foundries: Steel and Gray Iron |
| 18. | Polymers and Resins: Polyethylene |
| 19. | Charcoal Production |
| 20. | Synthetic Rubber |
|  | (a) Tire manufacture |
|  | (b) SBR production |
| 21. | Vegetable Oil |
| 22. | Industrial Surface Coating: Metal Coil |
| 23. | Petroleum Transportation and Marketing |
| 24. | By-Product Coke Ovens |
| 25. | Synthetic Fibers |
| 26. | Plywood Manufacture |
| 27. | Industrial Surface Coating: Automobiles |
| 28. | Industrial Surface Coating: Large Appliances |
| 29. | Crude Oil and Natural Gas Production |
| 30. | Secondary Aluminum |
| 31. | Potash (Deleted) |
| 32. | Lightweight Aggregate Industry: Clay, Shale, and Slate |
| 33. | Glass |
| 34. | Gypsum |
| 35. | Sodium Carbonate |
| 36. | Secondary Zinc (Deleted) |
| 37. | Polymers and Resins: Phenolic |
| 38. | Polymers and Resins: Urea-Melamine |
| 39. | Ammonia (Deleted) |
| 40. | Polymers and Resins: Polystyrene |
| 41. | Polymers and Resins: ABS-SAN Resins |
| 42. | Fiberglass |
| 43. | Polymers and Resins: Polypropylene |
| 44. | Textile Processing |
| 45. | Asphalt Processing and Asphalt Roofing Manufacture |
| 46. | Brick and Related Clay Products |
| 47. | Ceramic Clay Manufacturing (Deleted) |
| 48. | Ammonium Nitrate Fertilizer |
| 49. | Castable Refractories (Deleted) |
| 50. | Borax and Boric Acid (Deleted) |
| 51. | Polymers and Resins: Polyester Resins |
| 52. | Ammonium Sulfate |
| 53. | Starch |
| 54. | Perlite |
| 55. | Phosphoric Acid: Thermal Process (Deleted) |
| 56. | Uranium Refining |
| 57. | Animal Feed Defluorination (Deleted) |
| 58. | Urea (for fertilizer and polymers) |
| 59. | Detergent (Deleted) |
|  |  |
| Lead acid battery manufacture |  |
| Organic solvent cleaning |  |
| Industrial surface coating: metal furniture |  |
| Stationary gas turbines |  |
| Municipal solid waste landfills |  |
|  |  |
| Low numbers have highest priority, e.g., No. 1 is high priority, No. 59 is low priority. |  |
| Formerly titled “Sintering: Clay and Fly Ash”. |  |
| Minor source category, but included on list since an NSPS is being developed for that source category. |  |
| 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]