| NAICS Code | Trade |
| 2371 |
Utility System Construction |
| 23711 |
Water and Sewer Line and Related Structures Construction |
| 237110 |
Aqueduct construction |
| 237110 |
Artesian well construction |
| 237110 |
Capping of water wells |
| 237110 |
Construction management, water and sewage treatment plant |
| 237110 |
Construction management, water and sewer line |
| 237110 |
Distribution line, sewer and water, construction |
| 237110 |
Drilling water wells (except water intake wells in oil and gas fields) |
| 237110 |
Fire hydrant installation |
| 237110 |
Geothermal drilling |
| 237110 |
Irrigation system construction |
| 237110 |
Lagoon, sewage treatment construction |
| 237110 |
Pumping station, water and sewage system, construction |
| 237110 |
Reservoir construction |
| 237110 |
Sanitary sewer construction |
| 237110 |
Sewage collection and disposal line construction |
| 237110 |
Sewage disposal plant construction |
| 237110 |
Sewage treatment plant construction |
| 237110 |
Sewer construction |
| 237110 |
Sewer main, pipe and connection, construction |
| 237110 |
Storm sewer construction |
| 237110 |
Utility line (i.e., sewer, water), construction |
| 237110 |
Water desalination plant construction |
| 237110 |
Water filtration plant construction |
| 237110 |
Water main and line construction |
| 237110 |
Water pumping or lift station construction |
| 237110 |
Water system storage tank and tower construction |
| 237110 |
Water treatment plant construction |
| 237110 |
Water well drilling, digging, boring or sinking (except water intake wells in oil |
| 237110 |
Water well pump and well piping system installation |
| 23712 |
Oil and Gas Pipeline and Related Structures Construction |
| 237120 |
Compressor, metering and pumping station, gas and oil pipeline, construction |
| 237120 |
Construction management, oil and gas pipeline |
| 237120 |
Construction management, oil refinery and petrochemical complex |
| 237120 |
Corrosion protection, underground pipeline and oil storage tank |
| 237120 |
Distribution line, gas and oil, construction |
| 237120 |
Gas main construction |
| 237120 |
Gathering line, gas and oil field, construction |
| 237120 |
Natural gas pipeline construction |
| 237120 |
Natural gas processing plant construction |
| 237120 |
Oil and gas field distribution line construction |
| 237120 |
Oil pipeline construction |
| 237120 |
Oil refinery construction |
| 237120 |
Petrochemical plant construction |
| 237120 |
Petroleum refinery construction |
| 237120 |
Pipe lining (except thermal insulating) contractors |
| 237120 |
Pipeline construction on oil and gas field gathering lines to point of distributi |
| 237120 |
Pipeline rehabilitation contractors |
| 237120 |
Pipeline wrapping contractors |
| 237120 |
Pipeline, gas and oil, construction |
| 237120 |
Pumping station, gas and oil transmission, construction |
| 237120 |
Refinery, petroleum, construction |
| 237120 |
Service line, gas and oil, construction |
| 237120 |
Storage tank, natural gas or oil, tank farm or field, construction |
| 23713 |
Power and Communication Line and Related Structures Construction |
| 237130 |
Alternative energy (e.g., geothermal, ocean wave, solar, wind) structure construc |
| 237130 |
Cable laying (e.g., cable television, electricity, marine, telephone), including |
| 237130 |
Cellular phone tower construction |
| 237130 |
Co-generation plant construction |
| 237130 |
Communication antenna construction |
| 237130 |
Communication tower construction |
| 237130 |
Construction management, power and communication transmission line |
| 237130 |
Electric light and power plant (except hydroelectric) construction |
| 237130 |
Electric power transmission line and tower construction |
| 237130 |
Electricity generating plant (except hydroelectric) construction |
| 237130 |
Fiber optic cable transmission line construction |
| 237130 |
Microwave relay tower construction |
| 237130 |
Nuclear power plant construction |
| 237130 |
Pole line construction |
| 237130 |
Power line stringing |
| 237130 |
Power plant (except hydroelectric) construction |
| 237130 |
Radio transmitting tower construction |
| 237130 |
Satellite receiving station construction |
| 237130 |
Solar power structure construction |
| 237130 |
Substation and switching station, power transmission line, construction |
| 237130 |
Telephone line construction |
| 237130 |
Telephone line stringing |
| 237130 |
Television transmitting tower construction |
| 237130 |
Thermal power plant construction |
| 237130 |
Tower, power distribution and communication, construction |
| 237130 |
Transformer station and substation, electric power, construction |
| 237130 |
Transmission and distribution line construction |
| 237130 |
Underground cable (e.g., cable television, electricity, telephone) laying |
| 237130 |
Utility line (i.e., communication, electric power), construction |
| 237130 |
Wind power structure construction |
| 2372 |
Land Subdivision |
| 237210 |
Building lot subdividing |
| 237210 |
Land (except cemeteries) subdividers |
| 237210 |
Land acquisition, assembling and subdividing |
| 237210 |
Land subdividing and utility installation (e.g., electric, sewer and water) |
| 237210 |
Real estate (except cemeteries) subdividers |
| 237210 |
Real property (except cemeteries) subdivision |
| 237210 |
Subdividers, real estate |
| 237210 |
Subdividing real estate |
| 2373 |
Highway, Street, and Bridge Construction |
| 237310 |
Abutment construction |
| 237310 |
Airport runway construction |
| 237310 |
Airport runway line painting (e.g., striping) |
| 237310 |
Asphalt paving (i.e., highway, road, street, public sidewalk) |
| 237310 |
Bridge approach construction |
| 237310 |
Bridge construction |
| 237310 |
Bridge decking construction |
| 237310 |
Causeway construction |
| 237310 |
Concrete paving (i.e., highway, road, street, public sidewalk) |
| 237310 |
Construction management, highway, road, street and bridge |
| 237310 |
Culverts, highway, road and street, construction |
| 237310 |
Curbs and street gutters, highway, road and street, construction |
| 237310 |
Elevated highway construction |
| 237310 |
Grading, highway, road, street and airport runway |
| 237310 |
Guardrail construction |
| 237310 |
Highway construction |
| 237310 |
Highway line painting |
| 237310 |
Logging road construction |
| 237310 |
Oil field road construction |
| 237310 |
Overpass construction |
| 237310 |
Painting lines on highways, streets and bridges |
| 237310 |
Painting traffic lanes or parking lots |
| 237310 |
Parking lot marking and line painting |
| 237310 |
Parkway construction |
| 237310 |
Pavement, highway, road, street, bridge or airport runway, construction |
| 237310 |
Pothole filling, highway, road, street or bridge |
| 237310 |
Repair, highway, road, street, bridge or airport runway |
| 237310 |
Resurfacing, highway, road, street, bridge or airport runway |
| 237310 |
Road construction |
| 237310 |
Runway, airport, line painting (e.g., striping) |
| 237310 |
Sidewalk, public, construction |
| 237310 |
Sign erection, highway, roads street or bridge |
| 237310 |
Street construction |
| 237310 |
Surfacing, highway, road, street, bridge or airport runway |
| 237310 |
Tarring roads |
| 237310 |
Traffic lane painting |
| 237310 |
Trestle construction |
| 237310 |
Underpass construction |
| 2379 |
Other Heavy and Civil Engineering Construction |
| 237990 |
Anchored earth retention contractors |
| 237990 |
Athletic field (except stadium) construction |
| 237990 |
Avalanche protection, construction |
| 237990 |
Breakwater construction |
| 237990 |
Bridle path construction |
| 237990 |
Bulkhead wall construction |
| 237990 |
Caisson (i.e., marine or pneumatic structures) construction |
| 237990 |
Canal construction |
| 237990 |
Channel construction |
| 237990 |
Cofferdam construction |
| 237990 |
Construction management, dam |
| 237990 |
Construction management, marine structure |
| 237990 |
Construction management, mass transit |
| 237990 |
Construction management, outdoor recreation facility |
| 237990 |
Construction management, tunnel |
| 237990 |
Cribbing (i.e., shore protection), construction |
| 237990 |
Dam construction |
| 237990 |
Dike and other flood control structure construction |
| 237990 |
Dock construction |
| 237990 |
Drainage canal and ditch construction |
| 237990 |
Drainage project construction |
| 237990 |
Dredging (e.g., canal, channel, ditch, waterway) |
| 237990 |
Drive-in movie facility construction |
| 237990 |
Earth retention system construction |
| 237990 |
Earth-filled dam construction |
| 237990 |
Electricity generating plant, hydroelectric, construction |
| 237990 |
Embankment construction |
| 237990 |
Farm drainage tile installation |
| 237990 |
Flood control project construction |
| 237990 |
Floodway canal and ditch construction |
| 237990 |
Gabion construction |
| 237990 |
Golf course construction |
| 237990 |
Harbor construction |
| 237990 |
Horizontal drilling (e.g., underground cable, pipeline, sewer installation) |
| 237990 |
Hydroelectric generating facility construction |
| 237990 |
Ice rink (except indoor) construction |
| 237990 |
Jetty construction |
| 237990 |
Land drainage contractors |
| 237990 |
Levee construction |
| 237990 |
Light rail system construction |
| 237990 |
Lock and waterway construction |
| 237990 |
Marine construction |
| 237990 |
Microtunneling contractors |
| 237990 |
Missile facility construction |
| 237990 |
Monorail construction |
| 237990 |
Nuclear waste disposal site construction |
| 237990 |
Outdoor recreation facility construction |
| 237990 |
Park and recreational open space improvement construction |
| 237990 |
Pier construction |
| 237990 |
Pile driving, marine |
| 237990 |
Pipe-jacking contractors |
| 237990 |
Play ground construction |
| 237990 |
Port facility construction |
| 237990 |
Power plant, hydroelectric, construction |
| 237990 |
Railroad construction |
| 237990 |
Railway construction (e.g., interlocker, roadbed, signal, track) |
| 237990 |
Railway roadbed construction |
| 237990 |
Recreation area, open space, construction |
| 237990 |
Recreational vehicle park construction |
| 237990 |
Retaining walls, anchored (e.g., with piles, soil nails, tieback anchors), constr |
| 237990 |
Revetment construction |
| 237990 |
Riprap installation |
| 237990 |
Rock removal, underwater |
| 237990 |
Seawall, wave protection, construction |
| 237990 |
Sediment control system construction |
| 237990 |
Ski tow construction |
| 237990 |
Spillway, floodwater, construction |
| 237990 |
Sports field construction |
| 237990 |
Streetcar line construction |
| 237990 |
Subway construction |
| 237990 |
Tennis courts, outdoor, construction |
| 237990 |
Timber removal, underwater |
| 237990 |
Trail construction |
| 237990 |
Trenching, underwater |
| 237990 |
Tunnel construction |
| 237990 |
Wharf construction |
