North American Industry Classification System (NAICS) 2002
31-33 - Manufacturing
This sector comprises establishments primarily engaged in the physical or chemical transformation of materials or substances into new products. These products may be finished, in the sense that they are ready to be used or consumed, or semi-finished, in the sense of becoming a raw material for an establishment to use in further manufacturing. Related activities, such as the assembly of the component parts of manufactured goods; the blending of materials; and the finishing of manufactured products by dyeing, heat-treating, plating and similar operations are also treated as manufacturing activities. Manufacturing establishments are known by a variety of trade designations, such as plants, factories or mills.
Manufacturing establishments may own the materials which they transform or they may transform materials owned by other establishments. Manufacturing may take place in factories or in workers' homes, using either machinery or hand tools.
Certain activities involving the transformation of goods are classified in other sectors. Some examples are post-harvest activities of agricultural establishments, such as crop drying; logging; the beneficiating of mineral ores; the production of structures by construction establishments; and various activities conducted by retailers, such as meat cutting and the assembly of products such as bicycles and computers.
335 - Electrical Equipment, Appliance and Component Manufacturing
This subsector comprises establishments primarily engaged in manufacturing products that generate, distribute and use electrical power.
3351 - Electric Lighting Equipment Manufacturing
This industry group comprises establishments primarily engaged in manufacturing electric lamp bulbs and tubes and lighting fixtures.
33511 - Electric Lamp Bulb and Parts Manufacturing
This industry comprises establishments primarily engaged in manufacturing all types of electric lamps (bulbs and tubes).
33512 - Lighting Fixture Manufacturing
This industry comprises establishments primarily engaged in manufacturing lighting fixtures and lamps.
Exclusion(s):
Establishments primarily engaged in:
- manufacturing lamp shades of materials other than textiles (see 32721 Glass and Glass Product Manufacturing or 33299 All Other Fabricated Metal Product Manufacturing)
- manufacturing sealed-beam headlamps and other light bulbs for motor vehicles (See 33511 Electric Lamp Bulb and Parts Manufacturing)
- manufacturing motor vehicle lighting fixtures (See 33632 Motor Vehicle Electrical and Electronic Equipment Manufacturing)
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