1997
NAICS |
1997 NAICS U.S. Description
(with link to definition) |
2002
NAICS |
2002 NAICS U.S. Description
(with link to definition) |
| 234
|
Heavy construction
|
|
|
| 2341
|
Highway, street, bridge, and tunnel construction
|
|
|
| 23411
|
Highway and street construction
|
|
|
| 234110
|
Highway and Street Construction
| 237310
|
Highway, Street, and Bridge Construction (pt)
|
| 23412
|
Bridge and tunnel construction
|
|
|
| 234120
|
Bridge and Tunnel Construction
|
|
|
|
|
Bridge Construction
| 237310
|
Highway, Street, and Bridge Construction (pt)
|
|
|
Tunnel Construction
| 237990
|
Other Heavy and Civil Engineering Construction (pt)
|
| 2349
|
Other heavy construction
|
|
|
| 23491
|
Water, sewer, and pipeline construction
|
|
|
| 234910
|
Water, Sewer, and Pipeline Construction
|
|
|
|
|
Water/Sewer Pumping Stations, Sewage Collection and Disposal Lines, Storm Sewers, Sewer/Water Mains and Lines, and Water Storage
Tanks and Towers, and Construction Management of these Projects
| 237110
|
Water and Sewer Line and Related Structures Construction (pt)
|
|
|
Gas and Oil Pumping Stations, Gas and Oil Pipeline Construction, Gas Mains, Gas and Oil Storage Tank Construction, and
Construction Management of these Projects
| 237120
|
Oil and Gas Pipeline and Related Structures Construction (pt)
|
| 23492
|
Power and communication transmission line construction
|
|
|
| 234920
|
Power and Communication Transmission Line Construction
| 237130
|
Power and Communication Line and Related Structures Construction (pt)
|
| 23493
|
Industrial nonbuilding structure construction
|
|
|
| 234930
|
Industrial Nonbuilding Structure Construction
|
|
|
|
|
Process Batch Plants, Incinerators, Industrial Furnaces and Kilns, Mining Appurtenance, and Construction Management of these
Projects
| 236210
|
Industrial Building Construction (pt)
|
|
|
Petrochemical Plants, Refineries, and Construction Management of these Projects
| 237120
|
Oil and Gas Pipeline and Related Structures Construction (pt)
|
|
|
Power Generation Plants (excluding Hydroelectric Dams), Transmission and Distribution Transformer Stations, and Construction
Management of these Projects
| 237130
|
Power and Communication Line and Related Structures Construction (pt)
|
| 23499
|
All other heavy construction
|
|
|
| 234990
|
All Other Heavy Construction
|
|
|
|
|
Waste Disposal Plant Construction
| 236210
|
Industrial Building Construction (pt)
|
|
|
Irrigation Systems, Sewage Treatment and Water Treatment Plants, Construction Management of these Projects
| 237110
|
Water and Sewer Line and Related Structures Construction (pt)
|
|
|
Except Waste Disposal Plant Construction, Irrigation Systems, Sewage Treatment and Water Treatment Plants, Right-of-Way Clearing
and Line Slashing, Blasting, Trenching, and Equipment Rental with Operator
| 237990
|
Other Heavy and Civil Engineering Construction (pt)
|
|
|
Right-of-Way Clearing and Line Slashing, Blasting, Trenching, and Equipment Rental (except cranes) with Operator
| 238910
|
Site Preparation Contractors (pt)
|
|
|
Crane Rental with Operator
| 238990
|
All Other Specialty Trade Contractors (pt)
|
1997
NAICS |
1997 NAICS U.S. Description
(with link to definition) |
2002
NAICS |
2002 NAICS U.S. Description
(with link to definition) |
| 235
|
Special trade contractors
|
|
|
| 2351
|
Plumbing, heating, and air-conditioning contractors
|
|
|
| 23511
|
Plumbing, heating, and air-conditioning contractors
|
|
|
| 235110
|
Plumbing, Heating, and Air-Conditioning Contractors
|
|
|
|
|
Environmental Controls Installation Contractors
| 238210
|
Electrical Contractors (pt)
|
|
|
Except Environmental Controls Installation Contractors and Septic Tank, Cesspool, and Dry Well Construction Contractors
| 238220
|
Plumbing, Heating, and Air-Conditioning Contractors (pt)
|
|
|
Septic Tank, Cesspool, and Dry Well Construction Contractors
| 238910
|
Site Preparation Contractors (pt)
|
| 2352
|
Painting and wall covering contractors
|
|
|
| 23521
|
Painting and wall covering contractors
|
|
|
| 235210
|
Painting and Wall Covering Contractors
|
|
|
|
|
Highway and Traffic Line Painting
| 237310
|
Highway, Street, and Bridge Construction (pt)
|
|
|
Except Highway and Traffic Line Painting
| 238320
|
Painting and Wall Covering Contractors
|
| 2353
|
Electrical contractors
|
|
|
| 23531
|
Electrical contractors
|
|
|
| 235310
|
Electrical Contractors
| 238210
|
Electrical Contractors (pt)
|
| 2354
|
Masonry, drywall, insulation, and tile contractors
|
|
|
| 23541
|
Masonry and stone contractors
|
|
|
| 235410
|
Masonry and Stone Contractors
| 238140
|
Masonry Contractors (pt)
|
| 23542
|
Drywall, plastering, acoustical, and insulation contractors
|
|
|
| 235420
|
Drywall, Plastering, Acoustical, and Insulation Contractors
|
|
|
|
|
Stucco Contractors
| 238140
|
Masonry Contractors (pt)
|
|
|
Except Stucco Contractors
| 238310
|
Drywall and Insulation Contractors
|
| 23543
|
Tile, marble, terrazzo, and mosaic contractors
|
|
|
| 235430
|
Tile, Marble, Terrazzo, and Mosaic Contractors
| 238340
|
Tile and Terrazzo Contractors
|
| 2355
|
Carpentry and floor contractors
|
|
|
| 23551
|
Carpentry contractors
|
|
|
| 235510
|
Carpentry Contractors
|
|
|
|
|
Framing Carpentry
| 238130
|
Framing Contractors
|
|
|
Finish Carpentry
| 238350
|
Finish Carpentry Contractors
|
| 23552
|
Floor laying and other floor contractors
|
|
|
| 235520
|
Floor Laying and Other Floor Contractors
| 238330
|
Flooring Contractors
|
| 2356
|
Roofing, siding, and sheet metal contractors
|
|
|
| 23561
|
Roofing, siding, and sheet metal contractors
|
|
|
| 235610
|
Roofing, Siding, and Sheet Metal Contractors
|
|
|
|
|
Roofing Contractors
| 238160
|
Roofing Contractors
|
|
|
Siding Contractors
| 238170
|
Siding Contractors
|
|
|
Metal Ceiling, Panel, and Shelving Installation
| 238390
|
Other Building Finishing Contractors (pt)
|
| 2357
|
Concrete contractors
|
|
|
| 23571
|
Concrete contractors
|
|
|
| 235710
|
Concrete Contractors
|
|
|
|
|
Except Residential and Commercial Asphalt, Brick, and Concrete Paving
| 238110
|
Poured Concrete Foundation and Structure Contractors
|
|
|
Residential and Commercial Asphalt, Brick, and Concrete Paving
| 238990
|
All Other Specialty Trade Contractors (pt)
|
| 2358
|
Water well drilling contractors
|
|
|
| 23581
|
Water well drilling contractors
|
|
|
| 235810
|
Water Well Drilling Contractors
| 237110
|
Water and Sewer Line and Related Structures Construction (pt)
|
| 2359
|
Other special trade contractors
|
|
|
| 23591
|
Structural steel erection contractors
|
|
|
| 235910
|
Structural Steel Erection Contractors
|
|
|
|
|
Except Curtain Walls, Metal Furring Installation, and Cooling Tower Installation
| 238120
|
Structural Steel and Precast Concrete Contractors
|
|
|
Curtain Walls and Metal Furring Installation
| 238190
|
Other Foundation, Structure, and Building Exterior Contractors (pt)
|
|
|
Cooling Tower Installation
| 238220
|
Plumbing, Heating, and Air-Conditioning Contractors (pt)
|
| 23592
|
Glass and glazing contractors
|
|
|
| 235920
|
Glass and Glazing Contractors
| 238150
|
Glass and Glazing Contractors
|
| 23593
|
Excavation contractors
|
|
|
| 235930
|
Excavation Contractors
| 238910
|
Site Preparation Contractors (pt)
|
| 23594
|
Wrecking and demolition contractors
|
|
|
| 235940
|
Wrecking and Demolition Contractors
| 238910
|
Site Preparation Contractors (pt)
|
| 23595
|
Building equipment and other machinery installation contractors
|
|
|
| 235950
|
Building Equipment and Other Machinery Installation Contractors
|
|
|
|
|
Scrubber, Dust Collection, and Other Industrial Ventilation Installation
| 238220
|
Plumbing, Heating, and Air-Conditioning Contractors (pt)
|
|
|
Except Scrubber, Dust Collection, and Other Industrial Ventilation Installation
| 238290
|
Other Building Equipment Contractors (pt)
|
| 23599
|
All other special trade contractors
|
|
|
| 235990
|
All Other Special Trade Contractors
|
|
|
|
|
Indoor Swimming Pool Contractors
| 236220
|
Commercial and Institutional Building Construction (pt)
|
|
|
Anchored Earth Retention Contractors
| 237990
|
Other Heavy and Civil Engineering Construction (pt)
|
|
|
Forming Contractors
| 238190
|
Other Foundation, Structure, and Building Exterior Contractors (pt)
|
|
|
Service Station Equipment Installation Contractors; Boiler, Duct, and Pipe Insulation; Lightning Rod Installation; Bowling Alley
Installation; Household-Type Antenna Installation; Church Bell Installation; and Tower Clock Installation
| 238290
|
Other Building Equipment Contractors (pt)
|
|
|
Weather Stripping and Damp-Proofing, Modular Furniture Installation, Bathtub Refinishing, Window Covering Fixture Installation,
Trade Show Exhibit Installation and Dismantling, and Spectator Seating Installation
| 238390
|
Other Building Finishing Contractors (pt)
|
|
|
Dewatering Contractors, Core Drilling For Construction, and Test Boring for Construction
| 238910
|
Site Preparation Contractors (pt)
|
|
|
Except Indoor Swimming Pools, Earth Retention Contractors, Forming Contractors, Ornamental Metal Work, Building Equipment
Contractors, Building Finishing Contractors, Dewatering Contractors, Test Boring For Construction, & Core Drilling For
| 238990
|
All Other Specialty Trade Contractors (pt)
|
