SIC Code 2371 - Standard Industrial Classifications Codes (SIC Code) and North American Industry Classification System (NAICS)

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Standard Industrial Classifications Codes (SIC Codes) /
North American Industry Classification System (NAICS)

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23711

Water and Sewer Line and Related Structures Construction
This industry comprises establishments primarily engaged in the construction of water and sewer lines, mains, pumping stations, treatment plants and storage tanks. The work performed may include new work, reconstruction, rehabilitation, and repairs. Specialized trade activities related to water and sewer line and related structures construction are included. The construction of structures (including buildings) that are integral parts of water and sewer networks (e.g., storage tanks, pumping stations, water treatment plants, and sewage treatment plants) is included in this industry.

Exclusion(s): Establishments primarily engaged in:

*constructing water intake wells in oil and gas fields (213118, Services to Oil and Gas Extraction); and *constructing marine facilities (e.g., ports), flood control structures, dams, or hydroelectric power generation facilities (23799, Other Heavy and Civil Engineering Construction).

23712

Oil and Gas Pipeline and Related Structures Construction
This industry comprises establishments primarily engaged in the construction of oil and gas lines, mains, refineries, and storage tanks. The work performed may include new work, reconstruction, rehabilitation, and repairs. Specialized trade activities related to oil and gas pipeline and related structures construction are included. The construction of structures (including buildings) that are integral parts of oil and gas networks (e.g., storage tanks, pumping stations, and refineries) is included in this industry.

Exclusion(s): Establishments primarily engaged in:

*building chemical plants (except petrochemical) and similar process or batch facilities (23621, Industrial Building and Structure Construction).

23713

Power and Communication Line and Related Structures Construction
This industry comprises establishments primarily engaged in the construction of power lines and towers, power plants (except hydroelectric generating facilities), and radio, television, and telecommunications transmitting/receiving towers. The work performed may include new work, reconstruction, rehabilitation, and repairs. Specialized trade activities related to power and communication line and related structures construction are included. The construction of structures (including buildings) that are integral parts of power and communication networks (e.g., transmitting towers, substations, and power plants) is included.

Exclusion(s): Establishments primarily engaged in:

*constructing broadcast studios and similar non-residential buildings (23622, Commercial and Institutional Building Construction); *constructing hydroelectric generating facilities (23799, Other Heavy and Civil Engineering Construction); *performing electrical work within buildings (23821, Electrical Contractors and Other Wiring Installation Contractors); *line slashing or cutting (except maintenance) (23891, Site Preparation Contractors); *installing and maintaining telecommunication lines by telecommunication companies (517, Telecommunications); *tree and brush trimming for overhead utility lines (56173, Landscaping Services); and *locating underground utility lines prior to digging (56199, All Other Support Services).

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