Includes
Anti-intrusion Alarm Systems; Foghorns; Gongs; Chimes; Bells; Burglar Alarm Systems; Fire Alarms; Police Alarm Systems; Sounding Devices; Manual Gas Alarms; Landing Wands.

Excludes
Loran; Radar; Sonar; Engine Oil and Fuel Warning Devices; Aircraft Oxygen Warning Devices.

Possible NAICS Codes
561621 – Security Systems Services (except Locksmiths)
334290 – Other Communications Equipment Manufacturing
335311 – Power, Distribution, and Specialty Transformer Manufacturing
334519 – Other Measuring and Controlling Device Manufacturing
334512 – Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
334220 – Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
541512 – Computer Systems Design Services
541519 – Other Computer Related Services
238210 – Electrical Contractors and Other Wiring Installation Contractors

Description
Installation of Equipment: Alarm, Signal, and Security Detection Systems

Possible NAICS Codes
561621 – Security Systems Services (except Locksmiths)
334290 – Other Communications Equipment Manufacturing
238210 – Electrical Contractors and Other Wiring Installation Contractors
541330 – Engineering Services
541519 – Other Computer Related Services
334512 – Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use

Description
Maintenance, Repair and Rebuilding of Equipment: Alarm, Signal, and Security Detection Systems

Possible NAICS Codes
561621 – Security Systems Services (except Locksmiths)
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
811210 – Electronic and Precision Equipment Repair and Maintenance
334290 – Other Communications Equipment Manufacturing
541519 – Other Computer Related Services
238210 – Electrical Contractors and Other Wiring Installation Contractors
561210 – Facilities Support Services
334512 – Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use
541330 – Engineering Services
334519 – Other Measuring and Controlling Device Manufacturing

Possible NAICS Codes
334290 – Other Communications Equipment Manufacturing
334220 – Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
541519 – Other Computer Related Services
561621 – Security Systems Services (except Locksmiths)
334111 – Electronic Computer Manufacturing
811210 – Electronic and Precision Equipment Repair and Maintenance
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
334210 – Telephone Apparatus Manufacturing
541330 – Engineering Services
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing

Description
Maintenance, Repair and Rebuilding of Equipment: Fire Control Equipment

Possible NAICS Codes
561621 – Security Systems Services (except Locksmiths)
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
238220 – Plumbing, Heating, and Air-Conditioning Contractors
922160 – Fire Protection
561210 – Facilities Support Services
811210 – Electronic and Precision Equipment Repair and Maintenance
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
238210 – Electrical Contractors and Other Wiring Installation Contractors
238990 – All Other Specialty Trade Contractors
236220 – Commercial and Institutional Building Construction

Description
Fire Protection Services

Possible NAICS Codes
561210 – Facilities Support Services
561621 – Security Systems Services (except Locksmiths)
922160 – Fire Protection
561990 – All Other Support Services
562998 – All Other Miscellaneous Waste Management Services
238220 – Plumbing, Heating, and Air-Conditioning Contractors
238210 – Electrical Contractors and Other Wiring Installation Contractors
561790 – Other Services to Buildings and Dwellings
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
238990 – All Other Specialty Trade Contractors

Possible NAICS Codes
561612 – Security Guards and Patrol Services
561621 – Security Systems Services (except Locksmiths)
922120 – Police Protection
561210 – Facilities Support Services
561611 – Investigation and Personal Background Check Services
334290 – Other Communications Equipment Manufacturing
541990 – All Other Professional, Scientific, and Technical Services
238210 – Electrical Contractors and Other Wiring Installation Contractors
541519 – Other Computer Related Services
541330 – Engineering Services

Description
Maintenance, Repair and Rebuilding of Equipment: Fire Fighting, Rescue, and Safety Equipment; and Environmental Protection Equipment and Materials

Possible NAICS Codes
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
811111 – General Automotive Repair
561621 – Security Systems Services (except Locksmiths)
561990 – All Other Support Services
561210 – Facilities Support Services
238220 – Plumbing, Heating, and Air-Conditioning Contractors
922160 – Fire Protection
811210 – Electronic and Precision Equipment Repair and Maintenance
811114 – Specialized Automotive Repair
811198 – All Other Automotive Repair and Maintenance

Description
Other Professional Services

Possible NAICS Codes
493190 – Other Warehousing and Storage
541611 – Administrative Management and General Management Consulting Services
541990 – All Other Professional, Scientific, and Technical Services
721110 – Hotels (except Casino Hotels) and Motels
711510 – Independent Artists, Writers, and Performers
541330 – Engineering Services
541690 – Other Scientific and Technical Consulting Services
611430 – Professional and Management Development Training
541519 – Other Computer Related Services
561320 – Temporary Help Services

Description
Inspection and Laboratory Services (except medical/dental): Alarm, Signal, and Security Detection Systems

Includes
Includes: Commercial Testing and Laboratory Services

Excludes
Excludes: Medical and Dental Laboratory Services

Possible NAICS Codes
561621 – Security Systems Services (except Locksmiths)
238210 – Electrical Contractors and Other Wiring Installation Contractors
541350 – Building Inspection Services
334290 – Other Communications Equipment Manufacturing
238990 – All Other Specialty Trade Contractors
922160 – Fire Protection
238220 – Plumbing, Heating, and Air-Conditioning Contractors
811210 – Electronic and Precision Equipment Repair and Maintenance
561612 – Security Guards and Patrol Services
561210 – Facilities Support Services

Description
Surveillance Services

Possible NAICS Codes
561621 – Security Systems Services (except Locksmiths)
541940 – Veterinary Services
561612 – Security Guards and Patrol Services
561210 – Facilities Support Services
922120 – Police Protection
334290 – Other Communications Equipment Manufacturing
517111 – Wired Telecommunications Carriers
517122 – Agents for Wireless Telecommunications Services
517112 – Wireless Telecommunications Carriers (except Satellite)
921190 – Other General Government Support

Description
Support services for end user client computing including Tier 1 and 2 help/service desk, deskside support, adds/moves/changes, workspace technical support, audio/video (A/V, VTC) conferencing, and printer support. A/V and VTC includes support services typically used in conference rooms and dedicated telepresence rooms to enable workforce communications. Printer support includes Managed Print Services (MPS) for multifunction printers (print, scan, fax, copy).

Excludes
Mobile device support.

Possible NAICS Codes
811210 – Electronic and Precision Equipment Repair and Maintenance
541519 – Other Computer Related Services
561210 – Facilities Support Services
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
541330 – Engineering Services
334111 – Electronic Computer Manufacturing
513210 – Software Publishers
238290 – Other Building Equipment Contractors
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
541512 – Computer Systems Design Services

Description
Inspection and Laboratory Services (except medical/dental): Fire Control Equipment

Includes
Includes: Commercial Testing and Laboratory Services

Excludes
Excludes: Medical and Dental Laboratory Services

Possible NAICS Codes
561621 – Security Systems Services (except Locksmiths)
922160 – Fire Protection
541990 – All Other Professional, Scientific, and Technical Services
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
561210 – Facilities Support Services
541350 – Building Inspection Services
238220 – Plumbing, Heating, and Air-Conditioning Contractors
238990 – All Other Specialty Trade Contractors
236220 – Commercial and Institutional Building Construction
238210 – Electrical Contractors and Other Wiring Installation Contractors

Description
Quality Control Services: Alarm, Signal, and Security Detection Systems

Possible NAICS Codes
561621 – Security Systems Services (except Locksmiths)
238210 – Electrical Contractors and Other Wiring Installation Contractors
334512 – Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use
334290 – Other Communications Equipment Manufacturing
561612 – Security Guards and Patrol Services
561210 – Facilities Support Services
334519 – Other Measuring and Controlling Device Manufacturing
541330 – Engineering Services
334111 – Electronic Computer Manufacturing

Description
Modification of Equipment: Alarm, Signal, and Security Detection Systems

Possible NAICS Codes
561621 – Security Systems Services (except Locksmiths)
334290 – Other Communications Equipment Manufacturing
238210 – Electrical Contractors and Other Wiring Installation Contractors
561210 – Facilities Support Services
334517 – Irradiation Apparatus Manufacturing
334512 – Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
236220 – Commercial and Institutional Building Construction
541511 – Custom Computer Programming Services
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing