NAICS Code 212312

NAICS 212312

NAICS Code 212312 – Crushed and Broken Limestone Mining and Quarrying

Definition of NAICS Code 212312: This U.S. industry comprises of the following:

  1. Establishments primarily engaged in developing the mine site, mining or quarrying crushed and broken limestone (including related rocks, such as dolomite, cement rock, marl, travertine, and calcareous tufa); and
  2. Preparation plants primarily engaged in beneficiating limestone (e.g., grinding or pulverizing).
  • You can also download your own copy of the complete 2017 NAICS Classification Manual. The NAICS Manual is updated every five years. The 2017 copy will be applicable until a new edition is produced in 2022.

Cross Reference Guide for Code 212312

What codes are similar to this classification that might be a more applicable code? The cross-reference guide below displays the codes for other similar industries. Please review to find the most applicable classification.

  • Producing lime–are classified in Industry NAICS 327410, Lime Manufacturing; and
  • Mining or quarrying bituminous limestone–are classified in U.S. Industry NAICS 212319, Other Crushed and Broken Stone Mining and Quarrying.

Other Index Entries for NAICS 212312

The North American Industry Classification System contains multiple index entries that are each descriptive of the same code. The bulleted list below shows all applicable index entries (Current and former) that are associated with this classification. These index entries further elaborate on the scope of applicable industries that have already been defined at the top of this page.

  • Agricultural limestone mining and/or beneficiating
  • Calcareous tufa crushed and broken stone mining and/or beneficiating
  • Cement rock crushed and broken stone mining and/or beneficiating
  • Chalk crushed and broken stone mining and/or beneficiating
  • Chalk, ground or otherwise treated, mining and/or beneficiating
  • Dolomite crushed and broken stone mining and/or beneficiating
  • Lime rock, ground, mining and/or beneficiating
  • Limestone (except bituminous) crushed and broken stone mining and/or beneficiating
  • Limestone beneficiating plants (e.g., grinding or pulverizing)
  • Marl crushed and broken stone mining and/or beneficiating
  • Riprap, limestone, mining or quarrying
  • Riprap, limestone, preparation plants
  • Travertine crushed and broken stone mining and/or beneficiating
  • Tufa, calcareous, crushed and broken stone, mining and/or beneficiating
  • Whiting crushed and broken stone, mining and/or beneficiating

Insurance Conversion Table for NAICS Code 212312

Looking for an insurance classification other than the North American Industry Classification System? If a company falls within the industry defined on this page, then the class codes mentioned below may be applicable. Please note that the bulleted cross-reference guide below is not authoritative. Users should have an insurance professional review to ensure proper insurance classification.

  • NCCI WC (Varies by state): 1655NAICS 212312
  • CA WC: 1624
  • DE WC: 055
  • PA WC: 051
  • MI WC: 4000
  • NJ WC: 1624
  • NY WC: 1624
  • WY WC: 212312
  • GL: 98555
  • SIC: 1422

Resources: Praxiom, AceGroupTDICalifornia Division of Workers Compensation, Delaware Workers Compensation Manual, Pennsylvania Workers Compensation Manual, Michigan Workers’ Compensation Placement Facility: Classification Definitions, New Jersey Workers Compensation and Employers Liability Insurance Manual, New York Workers Compensation and Employers Liability, North American Industry Classification System, Florida Underwriting Guide: Commercial General Liability Classifications,  Standard Industrial Classifications.

The suggested cross reference guide for NAICS code 212312 is based on our research using the resources cited above.

Correlating Code Breakdown for North American Industry Classification System

NAICS codes are broken down by digit. The broadest description starts with the 2 digit sector codes. The 3 digit subsector codes are more specific, then the 4 digit industry group, 5 digit industry, and the most specific is the 6 digit NAICS code (Where you are now). If the code on this page does not describe the industry of the business in question, then select the largest applicable code below. From there, follow through the progression of smaller digits to the larger digits in order to obtain the most specific 6 digit classification.

  • Sector 21: Mining, Quarrying, and Oil and Gas Extraction
  • Subsector 212: Mining (except Oil and Gas)
  • Industry Group 2123: Nonmetallic Mineral Mining and Quarrying
  • Industry 21231: Stone Mining and Quarrying
  • 6 Digit Code(s) NAICS 212311: Dimension Stone Mining and Quarrying
  • 6 Digit Code(s) NAICS 212312: Crushed and Broken Limestone Mining and Quarrying
  • 6 Digit Code(s) NAICS 212313: Crushed and Broken Granite Mining and Quarrying
  • 6 Digit Code(s) NAICS 212319: Other Crushed and Broken Stone Mining and Quarrying
Other helpful NAICS Downloads

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NAICS Code 212312