# NAICS 237990: Other Heavy and Civil Engineering Construction

The SBA size standard for NAICS 237990 is $45,000,000 in average annual receipts (13 CFR 121.201).

| Field | Value |
| --- | --- |
| Code | 237990 |
| Title | Other Heavy and Civil Engineering Construction |
| Level | 6 |
| Parent | 23799 |
| Size standard | $45,000,000 in average annual receipts |
| Footnote | - |

## Description

This industry comprises establishments primarily engaged in heavy and civil engineering construction projects (excluding highway, street, bridge, and distribution line construction). The work performed may include new work, reconstruction, rehabilitation, and repairs. Specialty trade contractors are included in this industry if they are engaged in activities primarily related to heavy and civil engineering construction projects (excluding highway, street, bridge, distribution line, oil and gas structure, and utilities building and structure construction). Construction projects involving water 

## Sources

- Census NAICS: https://www.census.gov/naics/
- SBA size standards: https://www.sba.gov/document/support-table-size-standards

## API and MCP

- REST: GET https://samgovapi.io/api/v1/naics/237990/size-standard?revenue_usd=...
- MCP tools: naics_lookup, size_standard_check

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