NAICS 237

What is the NAICS code 237?

The NAICS code 237 is applied to those industries related to Heavy and Civil Engineering Construction.

The Heavy and Civil Engineering Construction subsector comprises establishments whose primary activity is the construction of entire engineering projects (e.g., highways and dams), and specialty trade contractors, whose primary activity is the production of a specific component for such projects. Specialty trade contractors in the Heavy and Civil Engineering Construction subsector generally are performing activities that are specific to heavy and civil engineering construction projects and are not normally performed on buildings. The work performed may include new work, additions, alterations, or maintenance and repairs. Specialty trade activities are classified in this subsector if the skills and equipment present are specific to heavy or civil engineering construction projects. For example, specialized equipment is needed to paint lines on highways. This equipment is not normally used in building applications so the activity is classified in this subsector. Traffic signal installation, while specific to highways, uses much of the same skills and equipment that are needed for electrical work in building projects and is therefore classified in Subsector 238, Specialty Trade Contractors.Construction projects involving water resources (e.g., dredging and land drainage) and projects involving open space improvement (e.g., parks and trails) are included in this subsector. Establishments whose primary activity is the subdivision of land into individual building lots usually perform various additional site-improvement activities (e.g., road building and utility line installation) and are included in this subsector. Establishments in this subsector are classified based on the types of structures that they construct. This classification reflects variations in the requirements of the underlying production processes.

Therefore, all companies engaged in any industrial activity related to this type of business are grouped under category 237 in the North American Industry Classification System.

This industrial activity of NAICS code is structured as follows:

• 23 - Construction
• 237 - Heavy and Civil Engineering Construction

Characteristics of the North American Industry Classification System code 237

NAFTA

This NAICS code is used in the trilateral agreement of the three members of the North American Free Trade Agreement (NAFTA): United States, Canada, and Mexico.

Related codes

There are no cross-reference for the NAICS industry 237.

Related activities

There is no Alternate NAICS Descriptions for the Heavy and Civil Engineering Construction industry (NAICS Code 237).