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 (as defined in the official U.S. Census Bureau 2022 NAICS Manual).
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
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)
Suggested Product Service Codes (Advisory)
The following Product Service Codes (PSCs) are advisory suggestions aligned with this NAICS code. Note: NAICS and PSC codes map to different dimensions of procurement (industry vs. product/service). There is no official binding 1:1 crosswalk.
- PSC 3820 — Mining, Rock Drilling, Earth Boring, and Related Equipment
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Frequently Asked Questions (FAQ)
Is NAICS code 212321 valid in 2022? ▾
Yes, 212321 is a valid 6-digit 2022 NAICS national industry code representing 'Construction Sand and Gravel Mining' under Sector 21 in the official classification index.
What is the SBA size standard for NAICS code 212321? ▾
The Small Business Administration (SBA) has established a small business size standard of 500 employees for NAICS code 212321 (Construction Sand and Gravel Mining), calculated based on employees.
What is the legacy SIC equivalent for NAICS 212321? ▾
According to official Census Bureau concordance tables, NAICS code 212321 (Construction Sand and Gravel Mining) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 1442 - Construction Sand and Gravel.
Related Pages & Tools
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.
- NAICS 212321 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Construction Sand and Gravel Mining).
- 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.