Description
Electric Services

Possible NAICS Codes
221122 – Electric Power Distribution
221112 – Fossil Fuel Electric Power Generation
221118 – Other Electric Power Generation
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
221210 – Natural Gas Distribution
926130 – Regulation and Administration of Communications, Electric, Gas, and Other Utilities
221121 – Electric Bulk Power Transmission and Control
238210 – Electrical Contractors and Other Wiring Installation Contractors

Includes
Gun Rifling Machines Speed Lathes.

Possible NAICS Codes
333517 – Machine Tool Manufacturing
333515 – Cutting Tool and Machine Tool Accessory Manufacturing
332510 – Hardware Manufacturing
332710 – Machine Shops
332216 – Saw Blade and Handtool Manufacturing
444140 – Hardware Retailers
423830 – Industrial Machinery and Equipment Merchant Wholesalers
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing
333248 – All Other Industrial Machinery Manufacturing

Includes
Engine, Turbine, Wind, and Hand Driven Generator Sets and Auxiliary Aircraft Generators.

Excludes
Motor-Converters: Motor-Generator Sets; Engine Generators; Engine Accessory Generators.

Possible NAICS Codes
335312 – Motor and Generator Manufacturing
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
335311 – Power, Distribution, and Specialty Transformer Manufacturing
332991 – Ball and Roller Bearing Manufacturing
238210 – Electrical Contractors and Other Wiring Installation Contractors
335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing
333613 – Mechanical Power Transmission Equipment Manufacturing

Description
Other Utilities

Possible NAICS Codes
221320 – Sewage Treatment Facilities
517111 – Wired Telecommunications Carriers
516210 – Media Streaming Distribution Services, Social Networks, and Other Media Networks and Content Providers
221310 – Water Supply and Irrigation Systems
926130 – Regulation and Administration of Communications, Electric, Gas, and Other Utilities
221122 – Electric Power Distribution
221210 – Natural Gas Distribution
562111 – Solid Waste Collection
221330 – Steam and Air-Conditioning Supply
517810 – All Other Telecommunications

Description
Quality Control Services: Plumbing, Heating, and Waste Disposal Equipment

Possible NAICS Codes
238220 – Plumbing, Heating, and Air-Conditioning Contractors
423720 – Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers
562112 – Hazardous Waste Collection
562111 – Solid Waste Collection
562211 – Hazardous Waste Treatment and Disposal
562119 – Other Waste Collection
562991 – Septic Tank and Related Services
561210 – Facilities Support Services
541620 – Environmental Consulting Services
423730 – Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers

Includes
Crayons; Erasers; File Holders; Writing Ink; Printing Ink; Paper Fasteners; Pencils; Penholders and Pen Points; Rulers, Office Type; Art Supplies; Tape, Pressure Sensitive Adhesive

Excludes
Office Devices; Fountain Pens; Artists' Brushes; Paper Stationery; Record Forms; Mechanical Pencils.

Possible NAICS Codes
339940 – Office Supplies (except Paper) Manufacturing
459410 – Office Supplies and Stationery Retailers
322230 – Stationery Product Manufacturing
322120 – Paper Mills
325992 – Photographic Film, Paper, Plate, Chemical, and Copy Toner Manufacturing
424130 – Industrial and Personal Service Paper Merchant Wholesalers
424120 – Stationery and Office Supplies Merchant Wholesalers
444110 – Home Centers
332510 – Hardware Manufacturing

Includes
Contactors: Motor Controllers; Power Servomechanisms; Switchgear; Voltage Regulators.

Excludes
Automatic Pilot Mechanisms; Relays; Resistors.

Possible NAICS Codes
334519 – Other Measuring and Controlling Device Manufacturing
335312 – Motor and Generator Manufacturing
335314 – Relay and Industrial Control Manufacturing
335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing
332510 – Hardware Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
335313 – Switchgear and Switchboard Apparatus Manufacturing
333618 – Other Engine Equipment Manufacturing
335311 – Power, Distribution, and Specialty Transformer Manufacturing
334413 – Semiconductor and Related Device Manufacturing

Description
Maintenance, Repair and Rebuilding of Equipment: Electrical and Electronic Equipment Components

Possible NAICS Codes
811210 – Electronic and Precision Equipment Repair and Maintenance
541330 – Engineering Services
238210 – Electrical Contractors and Other Wiring Installation Contractors
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
238290 – Other Building Equipment Contractors
561210 – Facilities Support Services
334220 – Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
541519 – Other Computer Related Services
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing

Description
Maintenance, Repair and Rebuilding of Equipment: Plumbing, Heating, and Waste Disposal Equipment

Possible NAICS Codes
238220 – Plumbing, Heating, and Air-Conditioning Contractors
561210 – Facilities Support Services
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
236220 – Commercial and Institutional Building Construction
237110 – Water and Sewer Line and Related Structures Construction
238210 – Electrical Contractors and Other Wiring Installation Contractors
334290 – Other Communications Equipment Manufacturing
561790 – Other Services to Buildings and Dwellings

Description
Maintenance, Repair and Rebuilding of Equipment: Refrigeration, Air Conditioning, and Air Circulating Equipment

Possible NAICS Codes
238220 – Plumbing, Heating, and Air-Conditioning Contractors
561210 – Facilities Support Services
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
333415 – Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing
238210 – Electrical Contractors and Other Wiring Installation Contractors
236220 – Commercial and Institutional Building Construction
334290 – Other Communications Equipment Manufacturing
811210 – Electronic and Precision Equipment Repair and Maintenance
561790 – Other Services to Buildings and Dwellings
811412 – Appliance Repair and Maintenance

Description
Inspection and Laboratory Services (except medical/dental): Mechanical Power Transmission Equipment

Includes
Includes: Commercial Testing and Laboratory Services

Excludes
Excludes: Medical and Dental Laboratory Services

Possible NAICS Codes
541350 – Building Inspection Services
333921 – Elevator and Moving Stairway Manufacturing
221122 – Electric Power Distribution
221111 – Hydroelectric Power Generation
926150 – Regulation, Licensing, and Inspection of Miscellaneous Commercial Sectors
811210 – Electronic and Precision Equipment Repair and Maintenance
541519 – Other Computer Related Services
336611 – Ship Building and Repairing
335311 – Power, Distribution, and Specialty Transformer Manufacturing
333613 – Mechanical Power Transmission Equipment Manufacturing

Includes
Complete Battery Charging Equipment, Nonrotating; Power Sup-plies, Multiapplication.

Excludes
Rectifying Tubes; (FSC 5960); Rectifying Crystals (FSC 5961); Rotating Equipment (FSC 6125); Transformers (FSC 5950); and Semiconductor Devices and Associated Hardware (FSC 5961).

Notes
This class includes devices employing a means other than mechanical rotation for changing electrical energy from one form to another (i.e., AC to AC, DC to DC, AC to DC, and DC to AC).

Possible NAICS Codes
335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing
335931 – Current-Carrying Wiring Device Manufacturing
334416 – Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing
335312 – Motor and Generator Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
333241 – Food Product Machinery Manufacturing
334412 – Bare Printed Circuit Board Manufacturing
336611 – Ship Building and Repairing
335311 – Power, Distribution, and Specialty Transformer Manufacturing

Excludes
Potential and Current Transformers.

Notes
This class includes transformers with a kilovolt-ampere rating above 1 kva.

Possible NAICS Codes
335311 – Power, Distribution, and Specialty Transformer Manufacturing
335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing
334416 – Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
238210 – Electrical Contractors and Other Wiring Installation Contractors
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
335312 – Motor and Generator Manufacturing
221122 – Electric Power Distribution
541519 – Other Computer Related Services
335313 – Switchgear and Switchboard Apparatus Manufacturing

Includes
Circuit Breakers and Cutouts.

Excludes
Relays.

Possible NAICS Codes
335313 – Switchgear and Switchboard Apparatus Manufacturing
221118 – Other Electric Power Generation
444180 – Other Building Material Dealers
333618 – Other Engine Equipment Manufacturing
333120 – Construction Machinery Manufacturing
333992 – Welding and Soldering Equipment Manufacturing
334419 – Other Electronic Component Manufacturing
335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
334412 – Bare Printed Circuit Board Manufacturing

Possible NAICS Codes
237990 – Other Heavy and Civil Engineering Construction
237130 – Power and Communication Line and Related Structures Construction
238210 – Electrical Contractors and Other Wiring Installation Contractors
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
335313 – Switchgear and Switchboard Apparatus Manufacturing
333923 – Overhead Traveling Crane, Hoist, and Monorail System Manufacturing
238160 – Roofing Contractors
238150 – Glass and Glazing Contractors
237120 – Oil and Gas Pipeline and Related Structures Construction
221310 – Water Supply and Irrigation Systems