Description
Ambulance Service

Possible NAICS Codes
621910 – Ambulance Services
485991 – Special Needs Transportation
921140 – Executive and Legislative Offices, Combined
481211 – Nonscheduled Chartered Passenger Air Transportation
485999 – All Other Transit and Ground Passenger Transportation

Possible NAICS Codes
922140 – Correctional Institutions
561210 – Facilities Support Services
921140 – Executive and Legislative Offices, Combined
561990 – All Other Support Services
561612 – Security Guards and Patrol Services
531190 – Lessors of Other Real Estate Property

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
541690 – Other Scientific and Technical Consulting Services
711510 – Independent Artists, Writers, and Performers
541330 – Engineering Services
541519 – Other Computer Related Services
611430 – Professional and Management Development Training
721110 – Hotels (except Casino Hotels) and Motels
561320 – Temporary Help Services

Description
Contract, Procurement, and Acquisition Support Services

Possible NAICS Codes
541990 – All Other Professional, Scientific, and Technical Services
541611 – Administrative Management and General Management Consulting Services
541330 – Engineering Services
541519 – Other Computer Related Services
611430 – Professional and Management Development Training
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
541620 – Environmental Consulting Services
561110 – Office Administrative Services
561210 – Facilities Support Services
541512 – Computer Systems Design Services

Description
Other Administrative Support Services

Possible NAICS Codes
541611 – Administrative Management and General Management Consulting Services
561110 – Office Administrative Services
561320 – Temporary Help Services
561210 – Facilities Support Services
541990 – All Other Professional, Scientific, and Technical Services
561990 – All Other Support Services
541330 – Engineering Services
541199 – All Other Legal Services
541519 – Other Computer Related Services
721211 – RV (Recreational Vehicle) Parks and Campgrounds

Description
Support services for delivery processes including IT Service Management (ITSM), Project Program and Portfolio (PPM), and Operations Centers (NOC, GOC). ITSM processes include incident, problem and change management services as part of the ITSM program. IT Project Management includes support for agile and continuous improvement/development (CI/CD).

Excludes
Tier 1 and 2 Help Desk.

Possible NAICS Codes
517111 – Wired Telecommunications Carriers
517112 – Wireless Telecommunications Carriers (except Satellite)
541519 – Other Computer Related Services
517122 – Agents for Wireless Telecommunications Services
517410 – Satellite Telecommunications
541512 – Computer Systems Design Services
516210 – Media Streaming Distribution Services, Social Networks, and Other Media Networks and Content Providers
517121 – Telecommunications Resellers
517810 – All Other Telecommunications
541511 – Custom Computer Programming Services

Description
Water Quality Studies

Possible NAICS Codes
541380 – Testing Laboratories and Services
541620 – Environmental Consulting Services
221310 – Water Supply and Irrigation Systems
541990 – All Other Professional, Scientific, and Technical Services
541690 – Other Scientific and Technical Consulting Services
541715 – Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
541714 – Research and Development in Biotechnology (except Nanobiotechnology)
611710 – Educational Support Services
325998 – All Other Miscellaneous Chemical Product and Preparation Manufacturing
541330 – Engineering Services