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North American Industry Classification System

Subsector 237 - Heavy and Civil Engineering Construction



2371	Utility System Construction

23711	Water and Sewer Line and Related Structures Construction

237110	Water and Sewer Line and Related Structures Construction

23712	Oil and Gas Pipeline and Related Structures Construction

237120	Oil and Gas Pipeline and Related Structures Construction

23713	Power and Communication Line and Related Structures Construction

237130	Power and Communication Line and Related Structures Construction


2372	Land Subdivision

23721	Land Subdivision

237210	Land Subdivision


2373	Highway, Street, and Bridge Construction

23731	Highway, Street, and Bridge Construction

237310	Highway, Street, and Bridge Construction


2379	Other Heavy and Civil Engineering Construction

23799	Other Heavy and Civil Engineering Construction

237990	Other Heavy and Civil Engineering Construction

SOURCE: 2002 NAICS--North American Industry Classification System
U.S. Census Bureau, Washington D.C.

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