212321 — Construction Sand and Gravel Mining
Description
This U.S. industry comprises establishments primarily engaged in one or more of the following: (1) operating commercial grade (i.e., construction) sand and gravel pits; (2) dredging for commercial grade sand and gravel; and (3) washing, screening, or otherwise preparing commercial grade sand and gravel.
Exclusions & Cross-References
- Mining industrial grade sand--are classified in U.S. Industry 212322, Industrial Sand Mining;
- Manufacturing ready-mix concrete--are classified in Industry 327320, Ready-Mix Concrete Manufacturing;
- and
- Construction projects involving water resources (e.g., dredging and land drainage)--are classified in
- Industry 237990, Other Heavy and Civil Engineering Construction.
Overview Facts
| NAICS Code | 212321 |
|---|---|
| Industry Title | Construction Sand and Gravel Mining |
| SBA Size Standard | 500 employees |
| IRS PBA Code | 212320 (rolled-up match) |
| Sectors Hierarchy | Sector 21 → 212 → 2123 |
| Source / Verified | US Census 2022 NAICS Manual / 2026-06-28 |
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 1442 - Construction Sand and Gravel (via SIC1987:1442→NAICS1997:212321→2002:212321→2007:212321→2012:212321→2017:212321→2022:212321)
Related Resources & Compliance Guides
Further regulatory reference links for NAICS code 212321:
- Sector 21 Directory Hub — List of related industries in the Mining, Quarrying, and Oil and Gas Extraction sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- SBA Size Standards Guide — Complete rules and averaging periods for small business classifications.
- Calculating Annual Receipts Guide — Detailed worked example of revenue calculation rules.
- IRS Principal Business Activity Guide — How NAICS codes map to corporate and entity tax filings.
Related Industries in 2123
Frequently Asked Questions (FAQ)
Is 212321 a valid 2022 NAICS code?
NAICS 212321 is 'Construction Sand and Gravel Mining', a 2022 U.S. national industry under Sector 21 (Mining, Quarrying, and Oil and Gas Extraction); the SBA small-business size standard is 500 employees.
What is the SBA size standard for NAICS 212321?
The SBA small business size standard for NAICS 212321 is 500 employees (based on employees).
What is the legacy SIC code mapping for 212321?
NAICS code 212321 maps to the legacy 1987 SIC codes: 1442 - Construction Sand and Gravel.