NAICS 212319

Overview

The North American Industry Classification System (NAICS) is the standard used by U.S. federal statistical agencies to classify business establishments for consistent collection, analysis, and publication of economic data. Developed under the Office of Management and Budget with Statistics Canada and Mexico’s INEGI, NAICS replaced SIC in 1997; the current vintage is 2022. ¹

NAICS 212319 covers establishments primarily engaged in developing mine sites and/or mining or quarrying crushed and broken stone other than limestone and granite, as well as preparation plants that beneficiate such stone (e.g., crushing and pulverizing). It also includes mining or quarrying bituminous limestone and bituminous sandstone. Agencies use this code to classify and report activity within the Stone Mining and Quarrying industry group. ²

What this NAICS covers

• Mine site development for non-limestone and non-granite crushed stone operations ²
• Quarrying of bituminous limestone and bituminous sandstone ²
• Beneficiation of stone (e.g., crushing, grinding, pulverizing) except limestone and granite ²
• Production of crushed marble stone from quarry operations ²
• Production of crushed sandstone from quarry operations ²
• Operation of preparation plants primarily engaged in sizing and screening stone (except limestone and granite) ²

Related NAICS and PSC codes

Scope notes and boundaries (official cross-references)

• Operations mining or quarrying crushed and broken limestone are classified under NAICS 212312, not NAICS 212319. ²
• Operations mining or quarrying crushed and broken granite are classified under NAICS 212313, not NAICS 212319. ²
• NAICS 212319 includes mine site development and beneficiation for covered stone types; manufacturing beyond basic preparation: Not specified by official sources ²

Frequently asked questions

• What activities are included in NAICS 212319?

  • Establishments develop mine sites, quarry crushed and broken stone other than limestone and granite, and run plants that crush, grind, or pulverize such stone. The industry also encompasses mining or quarrying bituminous limestone and bituminous sandstone. ²

• Which stone types are specifically cited under NAICS 212319?

  • Illustrative examples include marble (crushed and broken), sandstone (crushed and broken), bituminous limestone, and bituminous sandstone. These examples reflect typical products of covered quarries and preparation plants. ²

• How does NAICS 212319 differ from NAICS 212312 and NAICS 212313?

  • Limestone operations belong in NAICS 212312, and granite operations in NAICS 212313. NAICS 212319 covers other crushed and broken stone types and includes bituminous limestone/sandstone. ²

• What is the SBA small business size standard for NAICS 212319?

  • SBA’s industry size standards are authoritative and may change. Refer to SBA’s Table of Size Standards for the current, employee-based threshold associated with this NAICS code. ³

• When will federal datasets fully reflect the 2022 NAICS for this industry?

  • Census began publishing data on the 2022 NAICS basis with the 2022 Economic Census First Look in January 2024 and plans to transition remaining programs by the end of calendar year 2027, with noted survey exceptions. ⁴

Useful resources

• Census NAICS industry description for NAICS 212319. ²
• Economic Census guidance: NAICS overview and structure (2022 vintage context). ⁵
• SBA Table of Size Standards (current thresholds by NAICS). ³
• Census implementation of 2022 NAICS (timelines and program adoption). ⁴

References

1. U.S. Census Bureau — Classifying Businesses: The North American Industry Classification System (NAICS). https://www.census.gov/about/history/bureau-history/census-innovations/data-collection/classifying-businesses.html
2. U.S. Census Bureau — NAICS 2022 Code 212319: Other Crushed and Broken Stone Mining and Quarrying (official definition). https://www.census.gov/naics/?input=212319&year=2022&details=212319
3. U.S. Small Business Administration — Table of Size Standards. https://www.sba.gov/document/support/table-size-standards
4. U.S. Census Bureau — Implementation of the 2022 NAICS: Timeline and program adoption. https://www.census.gov/library/reference/code-lists/naics/2022/implementation-timeline.html
5. U.S. Census Bureau — Economic Census (2022): Understanding NAICS. https://www.census.gov/programs-surveys/economic-census/year/2022/technical-documentation/code-lists/understanding-naics-redirect.html