NAICS 2022 industry USA Verified: Census NAICS 2022 · 2026-01-01
21231
NAICS 21231 — Stone Mining and Quarrying
Stone Mining and Quarrying
NAICS 21231 is the NAICS industry code for stone mining and quarrying 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 21231 (4)
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.