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Plumbing, Heating, and Air-Conditioning Contractors

NAICS #23822 | This industry comprises establishments primarily engaged in installing and servicing plumbing, heating, and air-conditioning equipment. Contractors in this industry may provide both parts and labor when performing work. The work performed may include new work, additions, alterations, maintenance, and repairs. Installing electrical controls for HVAC systems--are classified in Industry 238210, Electrical Contractors; and Duct cleaning--are classified in Industry 561790, Other Services to Buildings and Dwellings.

Computer and Electronic Product Manufacturing

NAICS #334 | Industries in the Computer and Electronic Product Manufacturing subsector group establishments that manufacture computers, computer peripherals, communications equipment, and similar electronic products, and establishments that manufacture components for such products. The Computer and Electronic Product Manufacturing industries have been combined in the hierarchy of NAICS because of the economic significance they have attained. Their rapid growth suggests that they will become even more important to the economies of all three North American countries in the future, and in addition their manufacturing processes are fundamentally different from the manufacturing processes of other machinery and equipment. The design and use of integrated circuits and the application of highly specialized miniaturization technologies are common elements in the production technologies of the computer and electronic subsector. Convergence of technology motivates this NAICS subsector. Digitalization of sound recording, for example, causes both the medium (the compact disc) and the equipment to resemble the technologies for recording, storing, transmitting, and manipulating data. Communications technology and equipment have been converging with computer technology. When technologically-related components are in the same sector, it makes it easier to adjust the classification for future changes, without needing to redefine its basic structure. The creation of the Computer and Electronic Product Manufacturing subsector will assist in delineating new and emerging industries because the activities that will serve as the probable sources of new industries, such as computer manufacturing and communications equipment manufacturing, or computers and audio equipment, are brought together. As new activities emerge, they are less likely therefore, to cross the subsector boundaries of the classification.

Other Professional Equipment and Supplies Merchant Wholesalers

NAICS #42349 | This industry comprises establishments primarily engaged in the merchant wholesale distribution of professional equipment and supplies (except ophthalmic goods and medical, dental, and hospital equipment and supplies). Merchant wholesale distribution of professional equipment, instruments, and/or goods sold, prescribed, or used by ophthalmologists, optometrists, and opticians, such as ophthalmic frames and lenses, and sunglasses,--are classified in Industry 423460, Ophthalmic Goods Merchant Wholesalers; Merchant wholesale distribution of medical professional equipment, instruments, and supplies used by medical and dental practitioners (except ophthalmic equipment, instruments, and goods used by ophthalmologists, optometrists, and opticians) and medical facilities--are classified in Industry 423450, Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers; Merchant wholesale distribution of silverware and plated flatware--are classified in Industry 423940, Jewelry, Watch, Precious Stone, and Precious Metal Merchant Wholesalers; Merchant wholesale distribution of books--are classified in Industry 424920, Book, Periodical, and Newspaper Merchant Wholesalers; and Merchant wholesale distribution of school furniture--are classified in Industry 423210, Furniture Merchant Wholesalers.

Electrical and Electronic Goods Merchant Wholesalers

NAICS #4236 |

Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers

NAICS #42361 | This industry comprises establishments primarily engaged in the merchant wholesale distribution of electrical construction materials; wiring supplies; electric light fixtures; light bulbs; and/or electrical power equipment for the generation, transmission, distribution, or control of electric energy.

Electrical and Electronic Appliance, Television, and Radio Set Merchant Wholesalers

NAICS #42362 | This industry comprises establishments primarily engaged in the merchant wholesale distribution of household-type electrical appliances, room air-conditioners, gas and electric clothes dryers, and/or household-type audio or video equipment. Merchant wholesale distribution of gas household-type appliances (except gas clothes dryers)--are classified in Industry 423720, Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers; and Merchant wholesale distribution of nonhousehold-type video cameras--are classified in Industry 423410, Photographic Equipment and Supplies Merchant Wholesalers.

Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers

NAICS #42373 | This industry comprises establishments primarily engaged in the merchant wholesale distribution of warm air heating and air-conditioning equipment and supplies. Merchant wholesale distribution of household-type electrical appliances and room air-conditioners--are classified in Industry 423620, Electrical and Electronic Appliance, Television, and Radio Set Merchant Wholesalers; Merchant wholesale distribution of hydronic heating equipment--are classified in Industry 423720, Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers; and Selling and installing warm air heating and air-conditioning equipment--are classified in Industry 238220, Plumbing, Heating, and Air-Conditioning Contractors.

Electronics and Appliance Stores

NAICS #443 | Industries in the Electronics and Appliance Stores subsector retail new electronics and appliances from point-of-sale locations. Establishments in this subsector often operate from locations that have special provisions for floor displays requiring special electrical capacity to accommodate the proper demonstration of the products. The staff includes sales personnel knowledgeable in the characteristics and warranties of the line of goods retailed and may also include trained repair persons to handle the maintenance and repair of the electronic equipment and appliances. The classifications within this subsector are made principally on the type of product and knowledge required to operate each type of store.

Carpet and Upholstery Cleaning Services

NAICS #56174 | This industry comprises establishments primarily engaged in cleaning and dyeing used rugs, carpets, and upholstery. Rug repair not associated with rug cleaning--are classified in Industry 811490, Other Personal and Household Goods Repair and Maintenance; and Reupholstering and repairing furniture--are classified in Industry 811420, Reupholstery and Furniture Repair.