NAICS 2022 nationalIndustry USA Verified: Census NAICS 2022 · 2026-01-01
212312
NAICS 212312 — Crushed and Broken Limestone Mining and Quarrying
Crushed and Broken Limestone Mining and Quarrying
NAICS 212312 is the national industry code for crushed and broken limestone mining and quarrying establishments in the United States. The Small Business Administration sets a size standard of 750 for this classification. It forms part of the hierarchical North American Industry Classification System maintained by the Census Bureau.
SBA: 750
View full SBA standard
Related industries in 21231 (Stone Mining and Quarrying)
View parent 21231Official 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.
Cross-references & crosswalks
NAICS 2017 equivalent 212312
Crushed and Broken Limestone Mining and Quarrying
View full 2022 → 2017 crosswalkSBA size standard description
Crushed and Broken Limestone Mining and Quarrying
Changes to receipts-based standard: [object Object]
Trade codes using this NAICS
These Schedule B export codes explicitly reference NAICS 212312 in the Census trade classification files.