NAICS 2022 sector USA Verified: Census NAICS 2022 · 2026-01-01
23
NAICS 23 — Construction
Construction
NAICS 23 is the sector code for 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 23 (3)
Exclusions & Cross-References
Activities classified under other official NAICS codes:
- maintenance of rights of way for power, communication and pipe lines; and cleaning building exteriors, after construction (See 56 Administrative and support, waste management and remediation services)
- manufacturing and installing building equipment, such as power boilers; manufacturing pre-fabricated buildings (See 31-33 Manufacturing)
- operating highways, streets and bridges (See 48-49 Transportation and warehousing)
- project management services, when it is a primary activity (See 541330 Engineering services)
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.