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

Description
Forest/Range Fire Suppression/Presuppression Services

Possible NAICS Codes
115310 – Support Activities for Forestry
481212 – Nonscheduled Chartered Freight Air Transportation
621910 – Ambulance Services
485999 – All Other Transit and Ground Passenger Transportation
722310 – Food Service Contractors
481211 – Nonscheduled Chartered Passenger Air Transportation
324110 – Petroleum Refineries
811111 – General Automotive Repair

Description
Other Medical Services

Possible NAICS Codes
561320 – Temporary Help Services
622110 – General Medical and Surgical Hospitals
621111 – Offices of Physicians (except Mental Health Specialists)
621999 – All Other Miscellaneous Ambulatory Health Care Services
621399 – Offices of All Other Miscellaneous Health Practitioners
621910 – Ambulance Services
532283 – Home Health Equipment Rental
621498 – All Other Outpatient Care Centers
621610 – Home Health Care Services
621511 – Medical Laboratories

Description
Passenger Air Charter Service

Possible NAICS Codes
481211 – Nonscheduled Chartered Passenger Air Transportation
481219 – Other Nonscheduled Air Transportation
481212 – Nonscheduled Chartered Freight Air Transportation
481111 – Scheduled Passenger Air Transportation

Description
Air Charter for Things

Possible NAICS Codes
481211 – Nonscheduled Chartered Passenger Air Transportation
481219 – Other Nonscheduled Air Transportation
488190 – Other Support Activities for Air Transportation
481212 – Nonscheduled Chartered Freight Air Transportation
621910 – Ambulance Services
481111 – Scheduled Passenger Air Transportation
484121 – General Freight Trucking, Long-Distance, Truckload

Description
Other Transportation Travel and Relocation Services

Possible NAICS Codes
484210 – Used Household and Office Goods Moving
721110 – Hotels (except Casino Hotels) and Motels
492110 – Couriers and Express Delivery Services
485999 – All Other Transit and Ground Passenger Transportation
488490 – Other Support Activities for Road Transportation
488510 – Freight Transportation Arrangement
485991 – Special Needs Transportation
423860 – Transportation Equipment and Supplies (except Motor Vehicle) Merchant Wholesalers
485111 – Mixed Mode Transit Systems
485113 – Bus and Other Motor Vehicle Transit Systems

Description
General Health Care Services

Possible NAICS Codes
622110 – General Medical and Surgical Hospitals
561320 – Temporary Help Services
621498 – All Other Outpatient Care Centers
621111 – Offices of Physicians (except Mental Health Specialists)
621999 – All Other Miscellaneous Ambulatory Health Care Services
524114 – Direct Health and Medical Insurance Carriers
621511 – Medical Laboratories
621399 – Offices of All Other Miscellaneous Health Practitioners
541990 – All Other Professional, Scientific, and Technical Services
621610 – Home Health Care Services

Description
Air Passenger Service

Possible NAICS Codes
481211 – Nonscheduled Chartered Passenger Air Transportation
721110 – Hotels (except Casino Hotels) and Motels
561599 – All Other Travel Arrangement and Reservation Services
488190 – Other Support Activities for Air Transportation
481111 – Scheduled Passenger Air Transportation
621910 – Ambulance Services
531110 – Lessors of Residential Buildings and Dwellings
481219 – Other Nonscheduled Air Transportation
561510 – Travel Agencies
541618 – Other Management Consulting Services

Description
Motor Passenger Services

Possible NAICS Codes
532111 – Passenger Car Rental
485113 – Bus and Other Motor Vehicle Transit Systems
485999 – All Other Transit and Ground Passenger Transportation
485991 – Special Needs Transportation
485510 – Charter Bus Industry
485320 – Limousine Service
485410 – School and Employee Bus Transportation
485310 – Taxi and Ridesharing Services
561990 – All Other Support Services
721110 – Hotels (except Casino Hotels) and Motels

Description
Other Cargo and Freight Services

Possible NAICS Codes
492110 – Couriers and Express Delivery Services
484210 – Used Household and Office Goods Moving
488510 – Freight Transportation Arrangement
481212 – Nonscheduled Chartered Freight Air Transportation
485999 – All Other Transit and Ground Passenger Transportation
484110 – General Freight Trucking, Local
488991 – Packing and Crating
423860 – Transportation Equipment and Supplies (except Motor Vehicle) Merchant Wholesalers
484220 – Specialized Freight (except Used Goods) Trucking, Local
488310 – Port and Harbor Operations

Includes
Medical billing, third party liability, tumor registar, referral management, medical evaluation board, nursing support; no direct patient care.

Possible NAICS Codes
561320 – Temporary Help Services
621999 – All Other Miscellaneous Ambulatory Health Care Services
622110 – General Medical and Surgical Hospitals
621399 – Offices of All Other Miscellaneous Health Practitioners
621111 – Offices of Physicians (except Mental Health Specialists)
541990 – All Other Professional, Scientific, and Technical Services
621991 – Blood and Organ Banks
621511 – Medical Laboratories
541614 – Process, Physical Distribution, and Logistics Consulting Services
541519 – Other Computer Related Services

Description
Taxicab Services

Possible NAICS Codes
485310 – Taxi and Ridesharing Services
485991 – Special Needs Transportation
423860 – Transportation Equipment and Supplies (except Motor Vehicle) Merchant Wholesalers
485999 – All Other Transit and Ground Passenger Transportation
721110 – Hotels (except Casino Hotels) and Motels
621910 – Ambulance Services
561510 – Travel Agencies
561599 – All Other Travel Arrangement and Reservation Services
485320 – Limousine Service
485410 – School and Employee Bus Transportation

Includes
Automatic Pilot Regulators; Directional, Vertical, Bank and Turn, and Hydraulic Surface Gyro Controls; Airborne and Shipborne Automatic Pilot Mechanisms; Helicopter Automatic Stabilization Equipment.

Excludes
Automatic Pilot Training Devices (FSC 6930); Automatic Pilot Mechanisms, Guided Missile (FSC 1420).

Notes
Included in this class are gyro components of guided missiles. Excluded are complete gyro mechanisms and nonairborne gyro components, both of which are classified in the same classes as their next higher assemblies.

Possible NAICS Codes
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
336411 – Aircraft Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing
488190 – Other Support Activities for Air Transportation
334516 – Analytical Laboratory Instrument Manufacturing

Description
Other Education and Training Services

Possible NAICS Codes
611430 – Professional and Management Development Training
611710 – Educational Support Services
611512 – Flight Training
611699 – All Other Miscellaneous Schools and Instruction
611519 – Other Technical and Trade Schools
541611 – Administrative Management and General Management Consulting Services
611630 – Language Schools
611420 – Computer Training
611310 – Colleges, Universities, and Professional Schools
541990 – All Other Professional, Scientific, and Technical Services

Possible NAICS Codes
541620 – Environmental Consulting Services
541611 – Administrative Management and General Management Consulting Services
624230 – Emergency and Other Relief Services
562910 – Remediation Services
611710 – Educational Support Services
488119 – Other Airport Operations
541990 – All Other Professional, Scientific, and Technical Services
115310 – Support Activities for Forestry
541330 – Engineering Services
541614 – Process, Physical Distribution, and Logistics Consulting Services