212321

Construction Sand and Gravel Mining

Mining, Quarrying, and Oil and Gas Extraction › Mining (except Oil and Gas) › Nonmetallic Mineral Mining and Quarrying

SBA Size Standard

500 employees

Employee-Based Verify at SBA.gov →

NAICS Code Hierarchy

21

Sector

Mining, Quarrying, and Oil and Gas Extraction

212

Subsector

Mining (except Oil and Gas)

2123

Industry Group

Nonmetallic Mineral Mining and Quarrying

212321

National Industry (This Code)

Construction Sand and Gravel Mining

Official NAICS Description

Source: U.S. Census Bureau 2022 NAICS

📘 Source: U.S. Census Bureau — 2022 NAICS Manual
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.

✓ Small Business Eligibility at a Glance

Based on SBA Table of Small Business Size Standards (2024)

Size Standard

500 employees

Measurement Period

Current count

Standard Type

Employee-Based

Applies To

All contracts under NAICS 212321

Set-Aside Programs

8(a), WOSB, HUBZone, SDVOSB

Certification Required

No (self-certify in SAM.gov)

Size standards are set by the SBA and reviewed periodically. Always verify at SBA.gov before bidding.

Cross-References

The following activities are classified elsewhere in the NAICS system:

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.

How to Use NAICS 212321 in SAM.gov

NAICS code 212321Construction Sand and Gravel Mining — is used in SAM.gov to identify businesses whose primary activity falls within this classification. When you add this code to your SAM.gov entity registration, contracting officers searching for vendors in the Nonmetallic Mineral Mining and Quarrying space will be able to find your business.

If this code represents your primary business activity, designate it as your primary NAICS code. Your primary NAICS code determines your size standard for any contract solicited under this code. With a size standard of 500 employees, your business must be at or below this threshold to qualify as a small business for set-aside contracts under NAICS 212321.

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Frequently Asked Questions

What is NAICS code 212321?

NAICS code 212321 is 'Construction Sand and Gravel Mining', classified under the Mining, Quarrying, and Oil and Gas Extraction sector (NAICS 21). 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 gra

What is the SBA small business size standard for NAICS code 212321?

The SBA defines a small business under NAICS code 212321 (Construction Sand and Gravel Mining) as one with 500 employees. This size standard determines eligibility for small business set-aside contracts, 8(a), HUBZone, WOSB, and SDVOSB programs in SAM.gov.

How do I register NAICS code 212321 in SAM.gov?

To register NAICS code 212321 in SAM.gov: (1) Log in at sam.gov, (2) Navigate to your Entity Registration, (3) Go to the Assertions section, (4) Add 212321 (Construction Sand and Gravel Mining) to your NAICS code list. You may designate one code as your Primary NAICS code.

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Related NAICS Codes

Other codes in Nonmetallic Mineral Mining and Quarrying

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