Description
Maintenance, Repair and Rebuilding of Equipment: Railway Equipment

Possible NAICS Codes
488210 – Support Activities for Rail Transportation
237990 – Other Heavy and Civil Engineering Construction
811198 – All Other Automotive Repair and Maintenance
811121 – Automotive Body, Paint, and Interior Repair and Maintenance
336510 – Railroad Rolling Stock Manufacturing
211130 – Natural Gas Extraction
334513 – Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables
333517 – Machine Tool Manufacturing

Includes
RESURFACING

Possible NAICS Codes
237310 – Highway, Street, and Bridge Construction
115310 – Support Activities for Forestry
237990 – Other Heavy and Civil Engineering Construction
236220 – Commercial and Institutional Building Construction
488210 – Support Activities for Rail Transportation
561210 – Facilities Support Services
238990 – All Other Specialty Trade Contractors
238110 – Poured Concrete Foundation and Structure Contractors
238910 – Site Preparation Contractors
488490 – Other Support Activities for Road Transportation

Possible NAICS Codes
561210 – Facilities Support Services
238290 – Other Building Equipment Contractors
236220 – Commercial and Institutional Building Construction
238990 – All Other Specialty Trade Contractors
237990 – Other Heavy and Civil Engineering Construction
812220 – Cemeteries and Crematories
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
561730 – Landscaping Services
238320 – Painting and Wall Covering Contractors
221320 – Sewage Treatment Facilities

Includes
RESURFACING

Possible NAICS Codes
237310 – Highway, Street, and Bridge Construction
236220 – Commercial and Institutional Building Construction
237990 – Other Heavy and Civil Engineering Construction
238990 – All Other Specialty Trade Contractors
115310 – Support Activities for Forestry

Description
Logistics Support Services

Possible NAICS Codes
541614 – Process, Physical Distribution, and Logistics Consulting Services
493190 – Other Warehousing and Storage

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

Includes
Includes: Commercial Testing and Laboratory Services

Excludes
Excludes: Medical and Dental Laboratory Services

Possible NAICS Codes
541350 – Building Inspection Services
488210 – Support Activities for Rail Transportation
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
811198 – All Other Automotive Repair and Maintenance

Description
Other Quality Control, Testing and Inspection Services: Railway Equipment

Possible NAICS Codes
488210 – Support Activities for Rail Transportation
333310 – Commercial and Service Industry Machinery Manufacturing

Description
Relocation Services

Possible NAICS Codes
484210 – Used Household and Office Goods Moving
531210 – Offices of Real Estate Agents and Brokers
488510 – Freight Transportation Arrangement
488991 – Packing and Crating
423860 – Transportation Equipment and Supplies (except Motor Vehicle) Merchant Wholesalers
484110 – General Freight Trucking, Local
541614 – Process, Physical Distribution, and Logistics Consulting Services
492110 – Couriers and Express Delivery Services

Description
Facilities Operations Support Services

Possible NAICS Codes
561210 – Facilities Support Services
561720 – Janitorial Services
561920 – Convention and Trade Show Organizers
561730 – Landscaping Services
811490 – Other Personal and Household Goods Repair and Maintenance
238220 – Plumbing, Heating, and Air-Conditioning Contractors
561990 – All Other Support Services

Description
Other Utilities

Possible NAICS Codes
221320 – Sewage Treatment Facilities
517111 – Wired Telecommunications Carriers
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
516210 – Media Streaming Distribution Services, Social Networks, and Other Media Networks and Content Providers
561210 – Facilities Support Services
562111 – Solid Waste Collection
221112 – Fossil Fuel Electric Power Generation

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
541330 – Engineering Services
711510 – Independent Artists, Writers, and Performers
541519 – Other Computer Related Services

Possible NAICS Codes
611430 – Professional and Management Development Training
541715 – Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
541519 – Other Computer Related Services
488210 – Support Activities for Rail Transportation
541720 – Research and Development in the Social Sciences and Humanities
541330 – Engineering Services
518210 – Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services
513210 – Software Publishers

Includes
Cars, Motor, Highway; Buses; Chassis, Passenger Motor Vehicle; Hearses; Ambulances.

Excludes
Amphibious Personnel Carriers; All Truck Chassis.

Notes
This class includes only complete passenger motor vehicles, and chassis therefor. Any end items, assemblies, parts, attachments, or accessories, other than complete chassis, for use in or on passenger motor vehicles are classified in classes other than this class.

Possible NAICS Codes
336110 – Automobile and Light Duty Motor Vehicle Manufacturing
336211 – Motor Vehicle Body Manufacturing
336999 – All Other Transportation Equipment Manufacturing

Excludes
Self-Propelled Cars.

Notes
This class includes only complete locomotives and tenders. End items, assemblies, parts, attachments, or accessories for use in or on locomotives and tenders are classified in classes other than this class.

Possible NAICS Codes
336510 – Railroad Rolling Stock Manufacturing
488210 – Support Activities for Rail Transportation
562112 – Hazardous Waste Collection
492110 – Couriers and Express Delivery Services
335910 – Battery Manufacturing
325992 – Photographic Film, Paper, Plate, Chemical, and Copy Toner Manufacturing

Possible NAICS Codes
236220 – Commercial and Institutional Building Construction
237110 – Water and Sewer Line and Related Structures Construction
238210 – Electrical Contractors and Other Wiring Installation Contractors
237130 – Power and Communication Line and Related Structures Construction
561210 – Facilities Support Services
238220 – Plumbing, Heating, and Air-Conditioning Contractors
238990 – All Other Specialty Trade Contractors
236210 – Industrial Building Construction
237990 – Other Heavy and Civil Engineering Construction
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance