Includes
RESURFACING

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

Includes
Brake Beams and Components; Couplers; Trucks and Components; Journals and Components; Wheel Sets and Components.

Excludes
Railroad Furniture (FSG 71).

Possible NAICS Codes
336510 – Railroad Rolling Stock Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
332312 – Fabricated Structural Metal Manufacturing
812930 – Parking Lots and Garages
327390 – Other Concrete Product Manufacturing
811111 – General Automotive Repair
532120 – Truck, Utility Trailer, and RV (Recreational Vehicle) Rental and Leasing
482112 – Short Line Railroads
423860 – Transportation Equipment and Supplies (except Motor Vehicle) Merchant Wholesalers
335312 – Motor and Generator 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
238110 – Poured Concrete Foundation and Structure Contractors
561210 – Facilities Support Services
238990 – All Other Specialty Trade Contractors
238910 – Site Preparation Contractors
488210 – Support Activities for Rail Transportation
488490 – Other Support Activities for Road Transportation

Description
Rail Freight

Possible NAICS Codes
488210 – Support Activities for Rail Transportation
485999 – All Other Transit and Ground Passenger Transportation
484210 – Used Household and Office Goods Moving
484110 – General Freight Trucking, Local
482111 – Line-Haul Railroads
562211 – Hazardous Waste Treatment and Disposal
532411 – Commercial Air, Rail, and Water Transportation Equipment Rental and Leasing
488320 – Marine Cargo Handling
485113 – Bus and Other Motor Vehicle Transit Systems
485111 – Mixed Mode Transit Systems

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

Description
Logistics Support Services

Possible NAICS Codes
541614 – Process, Physical Distribution, and Logistics Consulting Services
493190 – Other Warehousing and Storage
488310 – Port and Harbor Operations
561990 – All Other Support Services

Description
Technical Representation Services: Railway Equipment

Possible NAICS Codes
541330 – Engineering Services
561990 – All Other Support Services
541990 – All Other Professional, Scientific, and Technical Services
488210 – Support Activities for Rail Transportation
482112 – Short Line Railroads

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
482111 – Line-Haul Railroads
811412 – Appliance Repair and Maintenance
482112 – Short Line Railroads

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
Expanded Metal Lath; Airplane Landing Mats; Traction Mats.

Possible NAICS Codes
423610 – Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers
339999 – All Other Miscellaneous Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing