NAICS 2022 subsector USA Verified: Census NAICS 2022 · 2026-01-01
237
NAICS 237 — Heavy and Civil Engineering Construction
Heavy and Civil Engineering Construction
NAICS 237 is the subsector code for heavy and civil engineering construction establishments in the United States. It forms part of the hierarchical North American Industry Classification System maintained by the Census Bureau.
Child industry codes in 237 (4)
Exclusions & Cross-References
Activities classified under other official NAICS codes:
- construction activities normally performed on buildings or building related projects (See 238 Specialty trade contractors)
Official data
| Feature | Description |
|---|---|
| Official name | North American Industry Classification System (NAICS) 2022 |
| Issuing authority | U.S. Census Bureau with OMB, Statistics Canada, and INEGI |
| Tax authority | Internal Revenue Service (IRS) |
| Purpose | Statistical business classification and federal contracting (SAM.gov, SBA standards) |
| Used in | SAM.gov registration, SBA size determinations, IRS tax classification, SEC EDGAR (via SIC crosswalk) |
| Active since | 2022 (current edition) |
| Hierarchy level | Sector (2-digit) |
| Source | https://www.census.gov/naics/ |
NAICS hierarchy path
Trace the classification from the broadest sector down to this national industry code.