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.

333 - Machinery Manufacturing

This subsector comprises establishments primarily engaged in manufacturing industrial and commercial machinery. These establishments assemble parts into components, subassemblies and complete machines. They may make the parts themselves, using general metal-working processes, or purchase them.

Establishments tend to specialize in producing machinery designed for particular applications, and this is reflected in the structure of the industry groups and industries. A broad distinction exists between general-purpose machinery, that is designed to be used in a variety of industrial applications, such as pumping or machining, and special-purpose machinery, that is designed to be used in a particular industry, such as agriculture or printing. The first three industry groups consist of establishments that produce special-purpose machinery. Establishments that produce general-purpose machinery are classified in the remaining industry groups.

Establishments primarily engaged in rebuilding machinery are included in the same industry as establishments manufacturing the particular type of new machinery. Unless otherwise specified, establishments primarily engaged in manufacturing parts, designed for use solely or principally with a particular machine, are classified in the same industry as establishments manufacturing that type of machinery.

3334 - Ventilation, Heating, Air-Conditioning and Commercial Refrigeration Equipment Manufacturing

This industry group comprises establishments primarily engaged in manufacturing ventilation, heating, air-conditioning and commercial refrigeration equipment.

33341 - Ventilation, Heating, Air-Conditioning and Commercial Refrigeration Equipment Manufacturing

This industry comprises establishments primarily engaged in manufacturing ventilation, heating, air-conditioning and commercial refrigeration equipment.

  • Exclusion(s):

    Establishments primarily engaged in:

    • manufacturing industrial, power and marine boilers (See 33241 Power Boiler and Heat Exchanger Manufacturing)
    • manufacturing commercial cooking and food warming equipment (See 33331 Commercial and Service Industry Machinery Manufacturing)
    • manufacturing industrial process furnaces and ovens (See 33399 All Other General-Purpose Machinery Manufacturing)
    • manufacturing household fans (except attic), and portable electric space heaters, humidifiers and dehumidifiers (See 33521 Small Electrical Appliance Manufacturing)
    • manufacturing household cooking stoves, ranges, refrigerators and freezers (See 33522 Major Appliance Manufacturing)
    • manufacturing motor vehicle air-conditioning systems and compressors (See 33639 Other Motor Vehicle Parts Manufacturing)
333413 - Industrial and Commercial Fan and Blower and Air Purification Equipment ManufacturingCAN

This Canadian industry comprises establishments primarily engaged in manufacturing industrial and commercial blowers.

  • Exclusion(s):

    Establishments primarily engaged in:

    • manufacturing household fans (except attic), and portable electric space heaters, humidifiers and dehumidifiers (See 335210 Small Electrical Appliance Manufacturing)
  • Example Activities:

    • Air purification equipment, stationary, manufacturing
    • Air scrubbing systems, manufacturing
    • Air washers (i.e., scrubbers), manufacturing
    • Attic fans, manufacturing
    • Dust and fume collecting equipment, manufacturing
    • Electrostatic precipitation equipment, manufacturing
    • Exhaust fans, industrial and commercial type, manufacturing
    • Fans, industrial and commercial type, manufacturing
    • Filters, furnace, manufacturing
    • Furnace filters, manufacturing
    • Ventilating fans, industrial and commercial type, manufacturing
333416 - Heating Equipment and Commercial Refrigeration Equipment ManufacturingCAN

This Canadian industry comprises establishments primarily engaged in manufacturing electric and non-electric heating equipment, and commercial and industrial refrigeration equipment.

  • Exclusion(s):

    Establishments primarily engaged in:

    • manufacturing industrial, power and marine boilers (See 332410 Power Boiler and Heat Exchanger Manufacturing)
    • manufacturing commercial cooking and food-warming equipment (See 333310 Commercial and Service Industry Machinery Manufacturing)
    • manufacturing blowers for warm-air heating equipment (See 333413 Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing)
    • manufacturing industrial process furnaces and ovens (See 333990 All Other General-Purpose Machinery Manufacturing)
    • manufacturing household cooking stoves, ranges, refrigerators, freezers and water coolers (See 335223 Major Kitchen Appliance Manufacturing)
    • manufacturing motor vehicle air-conditioning systems and compressors (See 336390 Other Motor Vehicle Parts Manufacturing)
  • Example Activities:

    • Air-conditioning and warm air heating combination units, manufacturing
    • Air-conditioning compressors (except motor vehicle), manufacturing
    • Air-conditioning condensers and condensing units, manufacturing
    • Air-conditioning equipment (except motor vehicle), manufacturing
    • Air-conditioning units (e.g., window, travel trailer, motor home), manufacturing
    • Baseboard heating units, manufacturing
    • Beer cooling and dispensing equipment, manufacturing
    • Boilers, heating, manufacturing
    • Burners, heating, manufacturing
    • Compressors, refrigeration and air-conditioning (except motor vehicle), manufacturing
    • Coolers, refrigeration, manufacturing
    • Coolers, water, manufacturing
    • Cooling towers, manufacturing
    • Counters and display cases, refrigerated, manufacturing
    • Dehumidifiers (except portable), manufacturing
    • Display cases, refrigerated, manufacturing
    • Drinking fountains, refrigerated, manufacturing
    • Evaporative condensers (i.e., heat transfer equipment), manufacturing
    • Fireplace inserts (i.e., heat directing), manufacturing
    • Fireplace logs, gas, manufacturing
    • Fountains, refrigerated drinking, manufacturing
    • Furnaces, manufacturing
    • Gas space heaters, manufacturing
    • Heat pumps, manufacturing
    • Heaters, space (except portable electric), manufacturing
    • Heaters, swimming pool, electric, manufacturing
    • Heaters, swimming pool, manufacturing
    • Heating and air-conditioning combination units, manufacturing
    • Heating equipment, forced air, manufacturing
    • Heating equipment, hot water (except hot water heaters), manufacturing
    • Heating units, baseboard, manufacturing
    • Humidifying equipment (except portable), manufacturing
    • Ice making machinery, manufacturing
    • Radiators (except motor vehicle, portable electric), manufacturing
    • Refrigerated counters and display cases, manufacturing
    • Refrigeration compressors, manufacturing
    • Refrigeration equipment, industrial and commercial type, manufacturing
    • Refrigeration units, truck type, manufacturing
    • Snow making machinery, manufacturing
    • Soda fountain cooling and dispensing equipment, manufacturing
    • Solar energy heating equipment, manufacturing
    • Space heaters (except portable electric), manufacturing
    • Swimming pool heaters, manufacturing
    • Unit heaters (except portable, electric), manufacturing
    • Water coolers, manufacturing
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