• 21 manufacturing subsectors (3-digit NAICS codes);
  1. 311 Food
  2. 312 Beverage and Tobacco Products
  3. 313 Textile Mills
  4. 314 Textile Product Mills
  5. 315 Apparel
  6. 316 Leather and Allied Products
  7. 321 Wood Products
  8. 322 Paper
  9. 323 Printing and Related Support
  10. 324 Petroleum and Coal Products
  11. 325 Chemicals
  12. 326 Plastics and Rubber Products
  13. 327 Nonmetallic Mineral Products
  14. 331 Primary Metals
  15. 332 Fabricated Metal Products
  16. 333 Machinery
  17. 334 Computer and Electronic Products
  18. 335 Electrical Equip., Appliances, and Components
  19. 336 Transportation Equipment
  20. 337 Furniture and Related Products
  21. 339 Miscellaneous
• 6 industry groups (4-digit NAICS codes);
  1. 3212 Veneer, Plywood, and Engineered Woods
  2. 3219 Other Wood Products
  3. 3272 Glass and Glass Products
  4. 3312 Steel Products from Purchased Steel
  5. 3313 Alumina and Aluminum
  6. 3315 Foundries
• 30 national industries (6-digit NAICS codes).
  1. 311221 Wet Corn Milling
  2. 313210 Broadwoven Fabric Mills
  3. 321113 Sawmills
  4. 321114 Wood Preservation
  5. 322110 Pulp Mills
  6. 322121 Paper Mills, except Newsprint
  7. 322122 Newsprint Mills
  8. 322130 Paperboard Mills
  9. 323110 Commercial Lithographic Printing
  10. 324110 Petroleum Refineries
  11. 325110 Petrochemicals
  12. 325120 Industrial Gases
  13. 325181 Alkalies and Chlorine
  14. 325188 Other Basic Inorganic Chemicals
  15. 325192 Cyclic Crudes and Intermediates
  16. 325199 Other Basic Organic Chemicals
  17. 325211 Plastics Materials and Resins
  18. 325212 Synthetic Rubber
  19. 325222 Noncellulosic Organic Fibers
  20. 325311 Nitrogenous Fertilizers
  21. 325312 Phosphatic Fertilizers
  22. 326199 Other Plastics Products
  23. 327310 Cements
  24. 331111 Iron and Steel Mills
  25. 331112 Electrometallurgical Ferroalloy Products
  26. 331312 Primary Aluminum
  27. 331511 Iron Foundries
  28. 331521 Aluminum Die-Casting Foundries
  29. 331524 Aluminum Foundries, except Die-Casting
  30. 334413 Semiconductors and Related Devices