A more recent edition of NAICS is available.
2017 Edition

sector 31-33

Manufacturing

Overview

The Manufacturing sector comprises establishments engaged in the mechanical, physical, or chemical transformation of materials, substances, or components into new products. The assembling of component parts of manufactured products is considered manufacturing, except in cases where the activity is appropriately classified in Sector 23, Construction.

Establishments in the Manufacturing sector are often described as plants, factories, or mills and characteristically use power-driven machines and material handling equipment. However, establishments that transform materials or substances into new products by hand or in the worker's home and those engaged in selling to the general public products made on the same premises from which they are sold, such as bakeries, candy stores, and custom tailors, may also be included in this sector. Manufacturing establishments may process materials or may contract with other establishments to process their materials for them. Both types of establishments are included in manufacturing.

The materials, substances, or components transformed by manufacturing establishments are raw materials that are products of agriculture, forestry, fishing, mining, or quarrying as well as products of other manufacturing establishments. The materials used may be purchased directly from producers, obtained through customary trade channels, or secured without recourse to the market by transferring the product from one establishment to another, under the same ownership.

The new product of a manufacturing establishment may be finished in the sense that it is ready for utilization or consumption, or it may be semi-finished to become an input for an establishment engaged in further manufacturing. For example, the product of the alumina refinery is the input used in the primary production of aluminum; primary aluminum is the input to an aluminum wire drawing plant; and aluminum wire is the input for a fabricated wire product manufacturing establishment.

The subsectors in the Manufacturing sector generally reflect distinct production processes related to material inputs, production equipment, and employee skills. In the machinery area, where assembling is a key activity, parts and accessories for manufactured products are classified in the industry of the finished manufactured item when they are made for separate sale. For example, a replacement refrigerator door would be classified with refrigerators and an attachment for a piece of metalworking machinery would be classified with metalworking machinery. However, components, input from other manufacturing establishments, are classified based on the production function of the component manufacturer. For example, electronic components are classified in Subsector 334, Computer and Electronic Product Manufacturing, and stampings are classified in Subsector 332, Fabricated Metal Product Manufacturing.

Manufacturing establishments often perform one or more activities that are classified outside the Manufacturing sector of NAICS. For instance, almost all manufacturing has some captive research and development or administrative operations, such as accounting, payroll, or management. These captive services are treated the same as captive manufacturing activities. When the services are provided by separate establishments, they are classified in the NAICS sector where such services are primary, not in manufacturing.

The boundaries of manufacturing and the other sectors of the classification system can be somewhat blurry. The establishments in the Manufacturing sector are engaged in the transformation of materials into new products. Their output is a new product. However, the definition of what constitutes a new product can be somewhat subjective. As clarification, the following activities are considered manufacturing in NAICS: Milk bottling and pasteurizing; Water bottling and processing; Fresh fish packaging (oyster shucking, fish filleting); Apparel jobbing (assigning materials to contract Ready-mix concrete production; Leather converting; Grinding lenses to prescription; Wood preserving; Electroplating, plating, metal heat treating, and factories or shops for fabrication or other polishing for the trade; contract operations) as well as contracting on Lapidary work for the trade; materials owned by others; Fabricating signs and advertising displays; Printing and related activities; Rebuilding or remanufacturing machinery (i.e., Machine shops; and automotive parts); Tire retreading. Ship repair and renovation;

Conversely, there are activities that are sometimes considered manufacturing, but which for NAICS are classified in another sector (i.e., not classified as manufacturing). They include:

1. Logging, classified in Sector 11, Agriculture, Forestry, Fishing and Hunting, is considered a harvesting operation;

2. Beneficiating ores and other minerals, classified in Sector 21, Mining, Quarrying, and Oil and Gas Extraction, is considered part of the activity of mining;

3. Constructing structures and fabricating at the construction site by contractors are classified in Sector 23, Construction;

4. Breaking bulk and redistributing in smaller lots, including packaging, repackaging, or bottling products, such as liquors or chemicals; assembling computers on a custom basis; sorting scrap; mixing paints to customer order; and cutting metals to customer order, classified in Sector 42, Wholesale Trade, or Sector 44-45, Retail Trade, produce a modified version of the same product, not a new product; and

5. Publishing and the combined activity of publishing and printing, classified in Sector 51, Information, transform information into a product for which the value to the consumer lies in the information content, not in the format in which it is distributed (i.e., the book or software compact disc).

Descendants

  1. 311 - Food Manufacturing
    1. 3111 - Animal Food Manufacturing
      1. 31111 - Animal Food Manufacturing
        1. 311111 - Dog and Cat Food Manufacturing
        2. 311119 - Other Animal Food Manufacturing
    2. 3112 - Grain and Oilseed Milling
      1. 31121 - Flour Milling and Malt Manufacturing
        1. 311211 - Flour Milling
        2. 311212 - Rice Milling
        3. 311213 - Malt Manufacturing
      2. 31122 - Starch and Vegetable Fats and Oils Manufacturing
        1. 311221 - Wet Corn Milling
        2. 311224 - Soybean and Other Oilseed Processing
        3. 311225 - Fats and Oils Refining and Blending
      3. 31123 - Breakfast Cereal Manufacturing
        1. 311230 - Breakfast Cereal Manufacturing
    3. 3113 - Sugar and Confectionery Product Manufacturing
      1. 31131 - Sugar Manufacturing
        1. 311313 - Beet Sugar Manufacturing
        2. 311314 - Cane Sugar Manufacturing
      2. 31134 - Nonchocolate Confectionery Manufacturing
        1. 311340 - Nonchocolate Confectionery Manufacturing
      3. 31135 - Chocolate and Confectionery Manufacturing
        1. 311351 - Chocolate and Confectionery Manufacturing from Cacao Beans
        2. 311352 - Confectionery Manufacturing from Purchased Chocolate
    4. 3114 - Fruit and Vegetable Preserving and Specialty Food Manufacturing
      1. 31141 - Frozen Food Manufacturing
        1. 311411 - Frozen Fruit, Juice, and Vegetable Manufacturing
        2. 311412 - Frozen Specialty Food Manufacturing
      2. 31142 - Fruit and Vegetable Canning, Pickling, and Drying
        1. 311421 - Fruit and Vegetable Canning
        2. 311422 - Specialty Canning
        3. 311423 - Dried and Dehydrated Food Manufacturing
    5. 3115 - Dairy Product Manufacturing
      1. 31151 - Dairy Product (except Frozen) Manufacturing
        1. 311511 - Fluid Milk Manufacturing
        2. 311512 - Creamery Butter Manufacturing
        3. 311513 - Cheese Manufacturing
        4. 311514 - Dry, Condensed, and Evaporated Dairy Product Manufacturing
      2. 31152 - Ice Cream and Frozen Dessert Manufacturing
        1. 311520 - Ice Cream and Frozen Dessert Manufacturing
    6. 3116 - Animal Slaughtering and Processing
      1. 31161 - Animal Slaughtering and Processing
        1. 311611 - Animal (except Poultry) Slaughtering
        2. 311612 - Meat Processed from Carcasses
        3. 311613 - Rendering and Meat Byproduct Processing
        4. 311615 - Poultry Processing
    7. 3117 - Seafood Product Preparation and Packaging
      1. 31171 - Seafood Product Preparation and Packaging
        1. 311710 - Seafood Product Preparation and Packaging
    8. 3118 - Bakeries and Tortilla Manufacturing
      1. 31181 - Bread and Bakery Product Manufacturing
        1. 311811 - Retail Bakeries
        2. 311812 - Commercial Bakeries
        3. 311813 - Frozen Cakes, Pies, and Other Pastries Manufacturing
      2. 31182 - Cookie, Cracker, and Pasta Manufacturing
        1. 311821 - Cookie and Cracker Manufacturing
        2. 311824 - Dry Pasta, Dough, and Flour Mixes Manufacturing from Purchased Flour
      3. 31183 - Tortilla Manufacturing
        1. 311830 - Tortilla Manufacturing
    9. 3119 - Other Food Manufacturing
      1. 31191 - Snack Food Manufacturing
        1. 311911 - Roasted Nuts and Peanut Butter Manufacturing
        2. 311919 - Other Snack Food Manufacturing
      2. 31192 - Coffee and Tea Manufacturing
        1. 311920 - Coffee and Tea Manufacturing
      3. 31193 - Flavoring Syrup and Concentrate Manufacturing
        1. 311930 - Flavoring Syrup and Concentrate Manufacturing
      4. 31194 - Seasoning and Dressing Manufacturing
        1. 311941 - Mayonnaise, Dressing, and Other Prepared Sauce Manufacturing
        2. 311942 - Spice and Extract Manufacturing
      5. 31199 - All Other Food Manufacturing
        1. 311991 - Perishable Prepared Food Manufacturing
        2. 311999 - All Other Miscellaneous Food Manufacturing
  2. 312 - Beverage and Tobacco Product Manufacturing
    1. 3121 - Beverage Manufacturing
      1. 31211 - Soft Drink and Ice Manufacturing
        1. 312111 - Soft Drink Manufacturing
        2. 312112 - Bottled Water Manufacturing
        3. 312113 - Ice Manufacturing
      2. 31212 - Breweries
        1. 312120 - Breweries
      3. 31213 - Wineries
        1. 312130 - Wineries
      4. 31214 - Distilleries
        1. 312140 - Distilleries
    2. 3122 - Tobacco Manufacturing
      1. 31223 - Tobacco Manufacturing
        1. 312230 - Tobacco Manufacturing
  3. 313 - Textile Mills
    1. 3131 - Fiber, Yarn, and Thread Mills
      1. 31311 - Fiber, Yarn, and Thread Mills
        1. 313110 - Fiber, Yarn, and Thread Mills
    2. 3132 - Fabric Mills
      1. 31321 - Broadwoven Fabric Mills
        1. 313210 - Broadwoven Fabric Mills
      2. 31322 - Narrow Fabric Mills and Schiffli Machine Embroidery
        1. 313220 - Narrow Fabric Mills and Schiffli Machine Embroidery
      3. 31323 - Nonwoven Fabric Mills
        1. 313230 - Nonwoven Fabric Mills
      4. 31324 - Knit Fabric Mills
        1. 313240 - Knit Fabric Mills
    3. 3133 - Textile and Fabric Finishing and Fabric Coating Mills
      1. 31331 - Textile and Fabric Finishing Mills
        1. 313310 - Textile and Fabric Finishing Mills
      2. 31332 - Fabric Coating Mills
        1. 313320 - Fabric Coating Mills
  4. 314 - Textile Product Mills
    1. 3141 - Textile Furnishings Mills
      1. 31411 - Carpet and Rug Mills
        1. 314110 - Carpet and Rug Mills
      2. 31412 - Curtain and Linen Mills
        1. 314120 - Curtain and Linen Mills
    2. 3149 - Other Textile Product Mills
      1. 31491 - Textile Bag and Canvas Mills
        1. 314910 - Textile Bag and Canvas Mills
      2. 31499 - All Other Textile Product Mills
        1. 314994 - Rope, Cordage, Twine, Tire Cord, and Tire Fabric Mills
        2. 314999 - All Other Miscellaneous Textile Product Mills
  5. 315 - Apparel Manufacturing
    1. 3151 - Apparel Knitting Mills
      1. 31511 - Hosiery and Sock Mills
        1. 315110 - Hosiery and Sock Mills
      2. 31519 - Other Apparel Knitting Mills
        1. 315190 - Other Apparel Knitting Mills
    2. 3152 - Cut and Sew Apparel Manufacturing
      1. 31521 - Cut and Sew Apparel Contractors
        1. 315210 - Cut and Sew Apparel Contractors
      2. 31522 - Men's and Boys' Cut and Sew Apparel Manufacturing
        1. 315220 - Men's and Boys' Cut and Sew Apparel Manufacturing
      3. 31524 - Women's, Girls', and Infants' Cut and Sew Apparel Manufacturing
        1. 315240 - Women's, Girls', and Infants' Cut and Sew Apparel Manufacturing
      4. 31528 - Other Cut and Sew Apparel Manufacturing
        1. 315280 - Other Cut and Sew Apparel Manufacturing
    3. 3159 - Apparel Accessories and Other Apparel Manufacturing
      1. 31599 - Apparel Accessories and Other Apparel Manufacturing
        1. 315990 - Apparel Accessories and Other Apparel Manufacturing
  6. 316 - Leather and Allied Product Manufacturing
    1. 3161 - Leather and Hide Tanning and Finishing
      1. 31611 - Leather and Hide Tanning and Finishing
        1. 316110 - Leather and Hide Tanning and Finishing
    2. 3162 - Footwear Manufacturing
      1. 31621 - Footwear Manufacturing
        1. 316210 - Footwear Manufacturing
    3. 3169 - Other Leather and Allied Product Manufacturing
      1. 31699 - Other Leather and Allied Product Manufacturing
        1. 316992 - Women's Handbag and Purse Manufacturing
        2. 316998 - All Other Leather Good and Allied Product Manufacturing
  7. 321 - Wood Product Manufacturing
    1. 3211 - Sawmills and Wood Preservation
      1. 32111 - Sawmills and Wood Preservation
        1. 321113 - Sawmills
        2. 321114 - Wood Preservation
    2. 3212 - Veneer, Plywood, and Engineered Wood Product Manufacturing
      1. 32121 - Veneer, Plywood, and Engineered Wood Product Manufacturing
        1. 321211 - Hardwood Veneer and Plywood Manufacturing
        2. 321212 - Softwood Veneer and Plywood Manufacturing
        3. 321213 - Engineered Wood Member (except Truss) Manufacturing
        4. 321214 - Truss Manufacturing
        5. 321219 - Reconstituted Wood Product Manufacturing
    3. 3219 - Other Wood Product Manufacturing
      1. 32191 - Millwork
        1. 321911 - Wood Window and Door Manufacturing
        2. 321912 - Cut Stock, Resawing Lumber, and Planing
        3. 321918 - Other Millwork (including Flooring)
      2. 32192 - Wood Container and Pallet Manufacturing
        1. 321920 - Wood Container and Pallet Manufacturing
      3. 32199 - All Other Wood Product Manufacturing
        1. 321991 - Manufactured Home (Mobile Home) Manufacturing
        2. 321992 - Prefabricated Wood Building Manufacturing
        3. 321999 - All Other Miscellaneous Wood Product Manufacturing
  8. 322 - Paper Manufacturing
    1. 3221 - Pulp, Paper, and Paperboard Mills
      1. 32211 - Pulp Mills
        1. 322110 - Pulp Mills
      2. 32212 - Paper Mills
        1. 322121 - Paper (except Newsprint) Mills
        2. 322122 - Newsprint Mills
      3. 32213 - Paperboard Mills
        1. 322130 - Paperboard Mills
    2. 3222 - Converted Paper Product Manufacturing
      1. 32221 - Paperboard Container Manufacturing
        1. 322211 - Corrugated and Solid Fiber Box Manufacturing
        2. 322212 - Folding Paperboard Box Manufacturing
        3. 322219 - Other Paperboard Container Manufacturing
      2. 32222 - Paper Bag and Coated and Treated Paper Manufacturing
        1. 322220 - Paper Bag and Coated and Treated Paper Manufacturing
      3. 32223 - Stationery Product Manufacturing
        1. 322230 - Stationery Product Manufacturing
      4. 32229 - Other Converted Paper Product Manufacturing
        1. 322291 - Sanitary Paper Product Manufacturing
        2. 322299 - All Other Converted Paper Product Manufacturing
  9. 323 - Printing and Related Support Activities
    1. 3231 - Printing and Related Support Activities
      1. 32311 - Printing
        1. 323111 - Commercial Printing (except Screen and Books)
        2. 323113 - Commercial Screen Printing
        3. 323117 - Books Printing
      2. 32312 - Support Activities for Printing
        1. 323120 - Support Activities for Printing
  10. 324 - Petroleum and Coal Products Manufacturing
    1. 3241 - Petroleum and Coal Products Manufacturing
      1. 32411 - Petroleum Refineries
        1. 324110 - Petroleum Refineries
      2. 32412 - Asphalt Paving, Roofing, and Saturated Materials Manufacturing
        1. 324121 - Asphalt Paving Mixture and Block Manufacturing
        2. 324122 - Asphalt Shingle and Coating Materials Manufacturing
      3. 32419 - Other Petroleum and Coal Products Manufacturing
        1. 324191 - Petroleum Lubricating Oil and Grease Manufacturing
        2. 324199 - All Other Petroleum and Coal Products Manufacturing
  11. 325 - Chemical Manufacturing
    1. 3251 - Basic Chemical Manufacturing
      1. 32511 - Petrochemical Manufacturing
        1. 325110 - Petrochemical Manufacturing
      2. 32512 - Industrial Gas Manufacturing
        1. 325120 - Industrial Gas Manufacturing
      3. 32513 - Synthetic Dye and Pigment Manufacturing
        1. 325130 - Synthetic Dye and Pigment Manufacturing
      4. 32518 - Other Basic Inorganic Chemical Manufacturing
        1. 325180 - Other Basic Inorganic Chemical Manufacturing
      5. 32519 - Other Basic Organic Chemical Manufacturing
        1. 325193 - Ethyl Alcohol Manufacturing
        2. 325194 - Cyclic Crude, Intermediate, and Gum and Wood Chemical Manufacturing
        3. 325199 - All Other Basic Organic Chemical Manufacturing
    2. 3252 - Resin, Synthetic Rubber, and Artificial and Synthetic Fibers and Filaments Manufacturing
      1. 32521 - Resin and Synthetic Rubber Manufacturing
        1. 325211 - Plastics Material and Resin Manufacturing
        2. 325212 - Synthetic Rubber Manufacturing
      2. 32522 - Artificial and Synthetic Fibers and Filaments Manufacturing
        1. 325220 - Artificial and Synthetic Fibers and Filaments Manufacturing
    3. 3253 - Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing
      1. 32531 - Fertilizer Manufacturing
        1. 325311 - Nitrogenous Fertilizer Manufacturing
        2. 325312 - Phosphatic Fertilizer Manufacturing
        3. 325314 - Fertilizer (Mixing Only) Manufacturing
      2. 32532 - Pesticide and Other Agricultural Chemical Manufacturing
        1. 325320 - Pesticide and Other Agricultural Chemical Manufacturing
    4. 3254 - Pharmaceutical and Medicine Manufacturing
      1. 32541 - Pharmaceutical and Medicine Manufacturing
        1. 325411 - Medicinal and Botanical Manufacturing
        2. 325412 - Pharmaceutical Preparation Manufacturing
        3. 325413 - In-Vitro Diagnostic Substance Manufacturing
        4. 325414 - Biological Product (except Diagnostic) Manufacturing
    5. 3255 - Paint, Coating, and Adhesive Manufacturing
      1. 32551 - Paint and Coating Manufacturing
        1. 325510 - Paint and Coating Manufacturing
      2. 32552 - Adhesive Manufacturing
        1. 325520 - Adhesive Manufacturing
    6. 3256 - Soap, Cleaning Compound, and Toilet Preparation Manufacturing
      1. 32561 - Soap and Cleaning Compound Manufacturing
        1. 325611 - Soap and Other Detergent Manufacturing
        2. 325612 - Polish and Other Sanitation Good Manufacturing
        3. 325613 - Surface Active Agent Manufacturing
      2. 32562 - Toilet Preparation Manufacturing
        1. 325620 - Toilet Preparation Manufacturing
    7. 3259 - Other Chemical Product and Preparation Manufacturing
      1. 32591 - Printing Ink Manufacturing
        1. 325910 - Printing Ink Manufacturing
      2. 32592 - Explosives Manufacturing
        1. 325920 - Explosives Manufacturing
      3. 32599 - All Other Chemical Product and Preparation Manufacturing
        1. 325991 - Custom Compounding of Purchased Resins
        2. 325992 - Photographic Film, Paper, Plate, and Chemical Manufacturing
        3. 325998 - All Other Miscellaneous Chemical Product and Preparation Manufacturing
  12. 326 - Plastics and Rubber Products Manufacturing
    1. 3261 - Plastics Product Manufacturing
      1. 32611 - Plastics Packaging Materials and Unlaminated Film and Sheet Manufacturing
        1. 326111 - Plastics Bag and Pouch Manufacturing
        2. 326112 - Plastics Packaging Film and Sheet (including Laminated) Manufacturing
        3. 326113 - Unlaminated Plastics Film and Sheet (except Packaging) Manufacturing
      2. 32612 - Plastics Pipe, Pipe Fitting, and Unlaminated Profile Shape Manufacturing
        1. 326121 - Unlaminated Plastics Profile Shape Manufacturing
        2. 326122 - Plastics Pipe and Pipe Fitting Manufacturing
      3. 32613 - Laminated Plastics Plate, Sheet (except Packaging), and Shape Manufacturing
        1. 326130 - Laminated Plastics Plate, Sheet (except Packaging), and Shape Manufacturing
      4. 32614 - Polystyrene Foam Product Manufacturing
        1. 326140 - Polystyrene Foam Product Manufacturing
      5. 32615 - Urethane and Other Foam Product (except Polystyrene) Manufacturing
        1. 326150 - Urethane and Other Foam Product (except Polystyrene) Manufacturing
      6. 32616 - Plastics Bottle Manufacturing
        1. 326160 - Plastics Bottle Manufacturing
      7. 32619 - Other Plastics Product Manufacturing
        1. 326191 - Plastics Plumbing Fixture Manufacturing
        2. 326199 - All Other Plastics Product Manufacturing
    2. 3262 - Rubber Product Manufacturing
      1. 32621 - Tire Manufacturing
        1. 326211 - Tire Manufacturing (except Retreading)
        2. 326212 - Tire Retreading
      2. 32622 - Rubber and Plastics Hoses and Belting Manufacturing
        1. 326220 - Rubber and Plastics Hoses and Belting Manufacturing
      3. 32629 - Other Rubber Product Manufacturing
        1. 326291 - Rubber Product Manufacturing for Mechanical Use
        2. 326299 - All Other Rubber Product Manufacturing
  13. 327 - Nonmetallic Mineral Product Manufacturing
    1. 3271 - Clay Product and Refractory Manufacturing
      1. 32711 - Pottery, Ceramics, and Plumbing Fixture Manufacturing
        1. 327110 - Pottery, Ceramics, and Plumbing Fixture Manufacturing
      2. 32712 - Clay Building Material and Refractories Manufacturing
        1. 327120 - Clay Building Material and Refractories Manufacturing
    2. 3272 - Glass and Glass Product Manufacturing
      1. 32721 - Glass and Glass Product Manufacturing
        1. 327211 - Flat Glass Manufacturing
        2. 327212 - Other Pressed and Blown Glass and Glassware Manufacturing
        3. 327213 - Glass Container Manufacturing
        4. 327215 - Glass Product Manufacturing Made of Purchased Glass
    3. 3273 - Cement and Concrete Product Manufacturing
      1. 32731 - Cement Manufacturing
        1. 327310 - Cement Manufacturing
      2. 32732 - Ready-Mix Concrete Manufacturing
        1. 327320 - Ready-Mix Concrete Manufacturing
      3. 32733 - Concrete Pipe, Brick, and Block Manufacturing
        1. 327331 - Concrete Block and Brick Manufacturing
        2. 327332 - Concrete Pipe Manufacturing
      4. 32739 - Other Concrete Product Manufacturing
        1. 327390 - Other Concrete Product Manufacturing
    4. 3274 - Lime and Gypsum Product Manufacturing
      1. 32741 - Lime Manufacturing
        1. 327410 - Lime Manufacturing
      2. 32742 - Gypsum Product Manufacturing
        1. 327420 - Gypsum Product Manufacturing
    5. 3279 - Other Nonmetallic Mineral Product Manufacturing
      1. 32791 - Abrasive Product Manufacturing
        1. 327910 - Abrasive Product Manufacturing
      2. 32799 - All Other Nonmetallic Mineral Product Manufacturing
        1. 327991 - Cut Stone and Stone Product Manufacturing
        2. 327992 - Ground or Treated Mineral and Earth Manufacturing
        3. 327993 - Mineral Wool Manufacturing
        4. 327999 - All Other Miscellaneous Nonmetallic Mineral Product Manufacturing
  14. 331 - Primary Metal Manufacturing
    1. 3311 - Iron and Steel Mills and Ferroalloy Manufacturing
      1. 33111 - Iron and Steel Mills and Ferroalloy Manufacturing
        1. 331110 - Iron and Steel Mills and Ferroalloy Manufacturing
    2. 3312 - Steel Product Manufacturing from Purchased Steel
      1. 33121 - Iron and Steel Pipe and Tube Manufacturing from Purchased Steel
        1. 331210 - Iron and Steel Pipe and Tube Manufacturing from Purchased Steel
      2. 33122 - Rolling and Drawing of Purchased Steel
        1. 331221 - Rolled Steel Shape Manufacturing
        2. 331222 - Steel Wire Drawing
    3. 3313 - Alumina and Aluminum Production and Processing
      1. 33131 - Alumina and Aluminum Production and Processing
        1. 331313 - Alumina Refining and Primary Aluminum Production
        2. 331314 - Secondary Smelting and Alloying of Aluminum
        3. 331315 - Aluminum Sheet, Plate, and Foil Manufacturing
        4. 331318 - Other Aluminum Rolling, Drawing, and Extruding
    4. 3314 - Nonferrous Metal (except Aluminum) Production and Processing
      1. 33141 - Nonferrous Metal (except Aluminum) Smelting and Refining
        1. 331410 - Nonferrous Metal (except Aluminum) Smelting and Refining
      2. 33142 - Copper Rolling, Drawing, Extruding, and Alloying
        1. 331420 - Copper Rolling, Drawing, Extruding, and Alloying
      3. 33149 - Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, Extruding, and Alloying
        1. 331491 - Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding
        2. 331492 - Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum)
    5. 3315 - Foundries
      1. 33151 - Ferrous Metal Foundries
        1. 331511 - Iron Foundries
        2. 331512 - Steel Investment Foundries
        3. 331513 - Steel Foundries (except Investment)
      2. 33152 - Nonferrous Metal Foundries
        1. 331523 - Nonferrous Metal Die-Casting Foundries
        2. 331524 - Aluminum Foundries (except Die-Casting)
        3. 331529 - Other Nonferrous Metal Foundries (except Die-Casting)
  15. 332 - Fabricated Metal Product Manufacturing
    1. 3321 - Forging and Stamping
      1. 33211 - Forging and Stamping
        1. 332111 - Iron and Steel Forging
        2. 332112 - Nonferrous Forging
        3. 332114 - Custom Roll Forming
        4. 332117 - Powder Metallurgy Part Manufacturing
        5. 332119 - Metal Crown, Closure, and Other Metal Stamping (except Automotive)
    2. 3322 - Cutlery and Handtool Manufacturing
      1. 33221 - Cutlery and Handtool Manufacturing
        1. 332215 - Metal Kitchen Cookware, Utensil, Cutlery, and Flatware (except Precious) Manufacturing
        2. 332216 - Saw Blade and Handtool Manufacturing
    3. 3323 - Architectural and Structural Metals Manufacturing
      1. 33231 - Plate Work and Fabricated Structural Product Manufacturing
        1. 332311 - Prefabricated Metal Building and Component Manufacturing
        2. 332312 - Fabricated Structural Metal Manufacturing
        3. 332313 - Plate Work Manufacturing
      2. 33232 - Ornamental and Architectural Metal Products Manufacturing
        1. 332321 - Metal Window and Door Manufacturing
        2. 332322 - Sheet Metal Work Manufacturing
        3. 332323 - Ornamental and Architectural Metal Work Manufacturing
    4. 3324 - Boiler, Tank, and Shipping Container Manufacturing
      1. 33241 - Power Boiler and Heat Exchanger Manufacturing
        1. 332410 - Power Boiler and Heat Exchanger Manufacturing
      2. 33242 - Metal Tank (Heavy Gauge) Manufacturing
        1. 332420 - Metal Tank (Heavy Gauge) Manufacturing
      3. 33243 - Metal Can, Box, and Other Metal Container (Light Gauge) Manufacturing
        1. 332431 - Metal Can Manufacturing
        2. 332439 - Other Metal Container Manufacturing
    5. 3325 - Hardware Manufacturing
      1. 33251 - Hardware Manufacturing
        1. 332510 - Hardware Manufacturing
    6. 3326 - Spring and Wire Product Manufacturing
      1. 33261 - Spring and Wire Product Manufacturing
        1. 332613 - Spring Manufacturing
        2. 332618 - Other Fabricated Wire Product Manufacturing
    7. 3327 - Machine Shops; Turned Product; and Screw, Nut, and Bolt Manufacturing
      1. 33271 - Machine Shops
        1. 332710 - Machine Shops
      2. 33272 - Turned Product and Screw, Nut, and Bolt Manufacturing
        1. 332721 - Precision Turned Product Manufacturing
        2. 332722 - Bolt, Nut, Screw, Rivet, and Washer Manufacturing
    8. 3328 - Coating, Engraving, Heat Treating, and Allied Activities
      1. 33281 - Coating, Engraving, Heat Treating, and Allied Activities
        1. 332811 - Metal Heat Treating
        2. 332812 - Metal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers
        3. 332813 - Electroplating, Plating, Polishing, Anodizing, and Coloring
    9. 3329 - Other Fabricated Metal Product Manufacturing
      1. 33291 - Metal Valve Manufacturing
        1. 332911 - Industrial Valve Manufacturing
        2. 332912 - Fluid Power Valve and Hose Fitting Manufacturing
        3. 332913 - Plumbing Fixture Fitting and Trim Manufacturing
        4. 332919 - Other Metal Valve and Pipe Fitting Manufacturing
      2. 33299 - All Other Fabricated Metal Product Manufacturing
        1. 332991 - Ball and Roller Bearing Manufacturing
        2. 332992 - Small Arms Ammunition Manufacturing
        3. 332993 - Ammunition (except Small Arms) Manufacturing
        4. 332994 - Small Arms, Ordnance, and Ordnance Accessories Manufacturing
        5. 332996 - Fabricated Pipe and Pipe Fitting Manufacturing
        6. 332999 - All Other Miscellaneous Fabricated Metal Product Manufacturing
  16. 333 - Machinery Manufacturing
    1. 3331 - Agriculture, Construction, and Mining Machinery Manufacturing
      1. 33311 - Agricultural Implement Manufacturing
        1. 333111 - Farm Machinery and Equipment Manufacturing
        2. 333112 - Lawn and Garden Tractor and Home Lawn and Garden Equipment Manufacturing
      2. 33312 - Construction Machinery Manufacturing
        1. 333120 - Construction Machinery Manufacturing
      3. 33313 - Mining and Oil and Gas Field Machinery Manufacturing
        1. 333131 - Mining Machinery and Equipment Manufacturing
        2. 333132 - Oil and Gas Field Machinery and Equipment Manufacturing
    2. 3332 - Industrial Machinery Manufacturing
      1. 33324 - Industrial Machinery Manufacturing
        1. 333241 - Food Product Machinery Manufacturing
        2. 333242 - Semiconductor Machinery Manufacturing
        3. 333243 - Sawmill, Woodworking, and Paper Machinery Manufacturing
        4. 333244 - Printing Machinery and Equipment Manufacturing
        5. 333249 - Other Industrial Machinery Manufacturing
    3. 3333 - Commercial and Service Industry Machinery Manufacturing
      1. 33331 - Commercial and Service Industry Machinery Manufacturing
        1. 333314 - Optical Instrument and Lens Manufacturing
        2. 333316 - Photographic and Photocopying Equipment Manufacturing
        3. 333318 - Other Commercial and Service Industry Machinery Manufacturing
    4. 3334 - Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing
      1. 33341 - Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing
        1. 333413 - Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing
        2. 333414 - Heating Equipment (except Warm Air Furnaces) Manufacturing
        3. 333415 - Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing
    5. 3335 - Metalworking Machinery Manufacturing
      1. 33351 - Metalworking Machinery Manufacturing
        1. 333511 - Industrial Mold Manufacturing
        2. 333514 - Special Die and Tool, Die Set, Jig, and Fixture Manufacturing
        3. 333515 - Cutting Tool and Machine Tool Accessory Manufacturing
        4. 333517 - Machine Tool Manufacturing
        5. 333519 - Rolling Mill and Other Metalworking Machinery Manufacturing
    6. 3336 - Engine, Turbine, and Power Transmission Equipment Manufacturing
      1. 33361 - Engine, Turbine, and Power Transmission Equipment Manufacturing
        1. 333611 - Turbine and Turbine Generator Set Units Manufacturing
        2. 333612 - Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing
        3. 333613 - Mechanical Power Transmission Equipment Manufacturing
        4. 333618 - Other Engine Equipment Manufacturing
    7. 3339 - Other General Purpose Machinery Manufacturing
      1. 33391 - Pump and Compressor Manufacturing
        1. 333912 - Air and Gas Compressor Manufacturing
        2. 333914 - Measuring, Dispensing, and Other Pumping Equipment Manufacturing
      2. 33392 - Material Handling Equipment Manufacturing
        1. 333921 - Elevator and Moving Stairway Manufacturing
        2. 333922 - Conveyor and Conveying Equipment Manufacturing
        3. 333923 - Overhead Traveling Crane, Hoist, and Monorail System Manufacturing
        4. 333924 - Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing
      3. 33399 - All Other General Purpose Machinery Manufacturing
        1. 333991 - Power-Driven Handtool Manufacturing
        2. 333992 - Welding and Soldering Equipment Manufacturing
        3. 333993 - Packaging Machinery Manufacturing
        4. 333994 - Industrial Process Furnace and Oven Manufacturing
        5. 333995 - Fluid Power Cylinder and Actuator Manufacturing
        6. 333996 - Fluid Power Pump and Motor Manufacturing
        7. 333997 - Scale and Balance Manufacturing
        8. 333999 - All Other Miscellaneous General Purpose Machinery Manufacturing
  17. 334 - Computer and Electronic Product Manufacturing
    1. 3341 - Computer and Peripheral Equipment Manufacturing
      1. 33411 - Computer and Peripheral Equipment Manufacturing
        1. 334111 - Electronic Computer Manufacturing
        2. 334112 - Computer Storage Device Manufacturing
        3. 334118 - Computer Terminal and Other Computer Peripheral Equipment Manufacturing
    2. 3342 - Communications Equipment Manufacturing
      1. 33421 - Telephone Apparatus Manufacturing
        1. 334210 - Telephone Apparatus Manufacturing
      2. 33422 - Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
        1. 334220 - Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
      3. 33429 - Other Communications Equipment Manufacturing
        1. 334290 - Other Communications Equipment Manufacturing
    3. 3343 - Audio and Video Equipment Manufacturing
      1. 33431 - Audio and Video Equipment Manufacturing
        1. 334310 - Audio and Video Equipment Manufacturing
    4. 3344 - Semiconductor and Other Electronic Component Manufacturing
      1. 33441 - Semiconductor and Other Electronic Component Manufacturing
        1. 334412 - Bare Printed Circuit Board Manufacturing
        2. 334413 - Semiconductor and Related Device Manufacturing
        3. 334416 - Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing
        4. 334417 - Electronic Connector Manufacturing
        5. 334418 - Printed Circuit Assembly (Electronic Assembly) Manufacturing
        6. 334419 - Other Electronic Component Manufacturing
    5. 3345 - Navigational, Measuring, Electromedical, and Control Instruments Manufacturing
      1. 33451 - Navigational, Measuring, Electromedical, and Control Instruments Manufacturing
        1. 334510 - Electromedical and Electrotherapeutic Apparatus Manufacturing
        2. 334511 - Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
        3. 334512 - Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use
        4. 334513 - Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables
        5. 334514 - Totalizing Fluid Meter and Counting Device Manufacturing
        6. 334515 - Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals
        7. 334516 - Analytical Laboratory Instrument Manufacturing
        8. 334517 - Irradiation Apparatus Manufacturing
        9. 334519 - Other Measuring and Controlling Device Manufacturing
    6. 3346 - Manufacturing and Reproducing Magnetic and Optical Media
      1. 33461 - Manufacturing and Reproducing Magnetic and Optical Media
        1. 334613 - Blank Magnetic and Optical Recording Media Manufacturing
        2. 334614 - Software and Other Prerecorded Compact Disc, Tape, and Record Reproducing
  18. 335 - Electrical Equipment, Appliance, and Component Manufacturing
    1. 3351 - Electric Lighting Equipment Manufacturing
      1. 33511 - Electric Lamp Bulb and Part Manufacturing
        1. 335110 - Electric Lamp Bulb and Part Manufacturing
      2. 33512 - Lighting Fixture Manufacturing
        1. 335121 - Residential Electric Lighting Fixture Manufacturing
        2. 335122 - Commercial, Industrial, and Institutional Electric Lighting Fixture Manufacturing
        3. 335129 - Other Lighting Equipment Manufacturing
    2. 3352 - Household Appliance Manufacturing
      1. 33521 - Small Electrical Appliance Manufacturing
        1. 335210 - Small Electrical Appliance Manufacturing
      2. 33522 - Major Household Appliance Manufacturing
        1. 335220 - Major Household Appliance Manufacturing
    3. 3353 - Electrical Equipment Manufacturing
      1. 33531 - Electrical Equipment Manufacturing
        1. 335311 - Power, Distribution, and Specialty Transformer Manufacturing
        2. 335312 - Motor and Generator Manufacturing
        3. 335313 - Switchgear and Switchboard Apparatus Manufacturing
        4. 335314 - Relay and Industrial Control Manufacturing
    4. 3359 - Other Electrical Equipment and Component Manufacturing
      1. 33591 - Battery Manufacturing
        1. 335911 - Storage Battery Manufacturing
        2. 335912 - Primary Battery Manufacturing
      2. 33592 - Communication and Energy Wire and Cable Manufacturing
        1. 335921 - Fiber Optic Cable Manufacturing
        2. 335929 - Other Communication and Energy Wire Manufacturing
      3. 33593 - Wiring Device Manufacturing
        1. 335931 - Current-Carrying Wiring Device Manufacturing
        2. 335932 - Noncurrent-Carrying Wiring Device Manufacturing
      4. 33599 - All Other Electrical Equipment and Component Manufacturing
        1. 335991 - Carbon and Graphite Product Manufacturing
        2. 335999 - All Other Miscellaneous Electrical Equipment and Component Manufacturing
  19. 336 - Transportation Equipment Manufacturing
    1. 3361 - Motor Vehicle Manufacturing
      1. 33611 - Automobile and Light Duty Motor Vehicle Manufacturing
        1. 336111 - Automobile Manufacturing
        2. 336112 - Light Truck and Utility Vehicle Manufacturing
      2. 33612 - Heavy Duty Truck Manufacturing
        1. 336120 - Heavy Duty Truck Manufacturing
    2. 3362 - Motor Vehicle Body and Trailer Manufacturing
      1. 33621 - Motor Vehicle Body and Trailer Manufacturing
        1. 336211 - Motor Vehicle Body Manufacturing
        2. 336212 - Truck Trailer Manufacturing
        3. 336213 - Motor Home Manufacturing
        4. 336214 - Travel Trailer and Camper Manufacturing
    3. 3363 - Motor Vehicle Parts Manufacturing
      1. 33631 - Motor Vehicle Gasoline Engine and Engine Parts Manufacturing
        1. 336310 - Motor Vehicle Gasoline Engine and Engine Parts Manufacturing
      2. 33632 - Motor Vehicle Electrical and Electronic Equipment Manufacturing
        1. 336320 - Motor Vehicle Electrical and Electronic Equipment Manufacturing
      3. 33633 - Motor Vehicle Steering and Suspension Components (except Spring) Manufacturing
        1. 336330 - Motor Vehicle Steering and Suspension Components (except Spring) Manufacturing
      4. 33634 - Motor Vehicle Brake System Manufacturing
        1. 336340 - Motor Vehicle Brake System Manufacturing
      5. 33635 - Motor Vehicle Transmission and Power Train Parts Manufacturing
        1. 336350 - Motor Vehicle Transmission and Power Train Parts Manufacturing
      6. 33636 - Motor Vehicle Seating and Interior Trim Manufacturing
        1. 336360 - Motor Vehicle Seating and Interior Trim Manufacturing
      7. 33637 - Motor Vehicle Metal Stamping
        1. 336370 - Motor Vehicle Metal Stamping
      8. 33639 - Other Motor Vehicle Parts Manufacturing
        1. 336390 - Other Motor Vehicle Parts Manufacturing
    4. 3364 - Aerospace Product and Parts Manufacturing
      1. 33641 - Aerospace Product and Parts Manufacturing
        1. 336411 - Aircraft Manufacturing
        2. 336412 - Aircraft Engine and Engine Parts Manufacturing
        3. 336413 - Other Aircraft Parts and Auxiliary Equipment Manufacturing
        4. 336414 - Guided Missile and Space Vehicle Manufacturing
        5. 336415 - Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing
        6. 336419 - Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing
    5. 3365 - Railroad Rolling Stock Manufacturing
      1. 33651 - Railroad Rolling Stock Manufacturing
        1. 336510 - Railroad Rolling Stock Manufacturing
    6. 3366 - Ship and Boat Building
      1. 33661 - Ship and Boat Building
        1. 336611 - Ship Building and Repairing
        2. 336612 - Boat Building
    7. 3369 - Other Transportation Equipment Manufacturing
      1. 33699 - Other Transportation Equipment Manufacturing
        1. 336991 - Motorcycle, Bicycle, and Parts Manufacturing
        2. 336992 - Military Armored Vehicle, Tank, and Tank Component Manufacturing
        3. 336999 - All Other Transportation Equipment Manufacturing
  20. 337 - Furniture and Related Product Manufacturing
    1. 3371 - Household and Institutional Furniture and Kitchen Cabinet Manufacturing
      1. 33711 - Wood Kitchen Cabinet and Countertop Manufacturing
        1. 337110 - Wood Kitchen Cabinet and Countertop Manufacturing
      2. 33712 - Household and Institutional Furniture Manufacturing
        1. 337121 - Upholstered Household Furniture Manufacturing
        2. 337122 - Nonupholstered Wood Household Furniture Manufacturing
        3. 337124 - Metal Household Furniture Manufacturing
        4. 337125 - Household Furniture (except Wood and Metal) Manufacturing
        5. 337127 - Institutional Furniture Manufacturing
    2. 3372 - Office Furniture (including Fixtures) Manufacturing
      1. 33721 - Office Furniture (including Fixtures) Manufacturing
        1. 337211 - Wood Office Furniture Manufacturing
        2. 337212 - Custom Architectural Woodwork and Millwork Manufacturing
        3. 337214 - Office Furniture (except Wood) Manufacturing
        4. 337215 - Showcase, Partition, Shelving, and Locker Manufacturing
    3. 3379 - Other Furniture Related Product Manufacturing
      1. 33791 - Mattress Manufacturing
        1. 337910 - Mattress Manufacturing
      2. 33792 - Blind and Shade Manufacturing
        1. 337920 - Blind and Shade Manufacturing
  21. 339 - Miscellaneous Manufacturing
    1. 3391 - Medical Equipment and Supplies Manufacturing
      1. 33911 - Medical Equipment and Supplies Manufacturing
        1. 339112 - Surgical and Medical Instrument Manufacturing
        2. 339113 - Surgical Appliance and Supplies Manufacturing
        3. 339114 - Dental Equipment and Supplies Manufacturing
        4. 339115 - Ophthalmic Goods Manufacturing
        5. 339116 - Dental Laboratories
    2. 3399 - Other Miscellaneous Manufacturing
      1. 33991 - Jewelry and Silverware Manufacturing
        1. 339910 - Jewelry and Silverware Manufacturing
      2. 33992 - Sporting and Athletic Goods Manufacturing
        1. 339920 - Sporting and Athletic Goods Manufacturing
      3. 33993 - Doll, Toy, and Game Manufacturing
        1. 339930 - Doll, Toy, and Game Manufacturing
      4. 33994 - Office Supplies (except Paper) Manufacturing
        1. 339940 - Office Supplies (except Paper) Manufacturing
      5. 33995 - Sign Manufacturing
        1. 339950 - Sign Manufacturing
      6. 33999 - All Other Miscellaneous Manufacturing
        1. 339991 - Gasket, Packing, and Sealing Device Manufacturing
        2. 339992 - Musical Instrument Manufacturing
        3. 339993 - Fastener, Button, Needle, and Pin Manufacturing
        4. 339994 - Broom, Brush, and Mop Manufacturing
        5. 339995 - Burial Casket Manufacturing
        6. 339999 - All Other Miscellaneous Manufacturing

History

The NAICS editions in which this code was present are indicated below. In the event that a code was changed from the prior edition the equivalent value in that edition is provided for reference.

Edition Existed Equivalent Value
2002 31-33
2007 31-33
2012 31-33
2017 31-33
2022 31-33

Standard Industrial Classification (SIC) Mappings

SIC Mappings are not available at the sector level, a more specific code is required.

SIC mappings are available for 6 digit national industry codes and their sub-descriptions only. For detailed mappings choose the most appropriate six-digit code from the list of descendants.

Insurance Industry Mappings

Mappings are not available at the sector level, a more specific code is required.

Insurance industry mappings are available for 6 digit national industry codes and their sub-descriptions only. For detailed mappings choose the most appropriate six-digit code from the list of descendants.

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