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NAICS code 212312: Crushed and Broken Limestone Mining and Quarrying

This U.S. industry comprises (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).

SBA small-business size limit
750 staff

Is your company small for 212312?

The SBA limit is 750 employees average number of employees.

What 212312 covers

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Activities listed under 212312

  • 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
Show all 15 entries
  • 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

Questions

What is NAICS code 212312?

NAICS 212312 is “Crushed and Broken Limestone Mining and Quarrying”. This U.S. industry comprises (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).

What businesses use NAICS code 212312?

Examples from the U.S. Census Bureau: 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; and Dolomite crushed and broken stone mining and/or beneficiating.

What is not included in NAICS 212312?

Businesses mainly producing lime are classified in Industry 327410, Lime Manufacturing; and mining or quarrying bituminous limestone are classified in U.S. Industry 212319, Other Crushed and Broken Stone Mining and Quarrying.

What is the SBA size standard for NAICS 212312?

750 employees (average over the last 24 months), including affiliates. Source: 13 CFR 121.201, effective March 17, 2023.

What is the SIC code for NAICS 212312?

SIC 1422 (Crushed and Broken Limestone), from the U.S. Census Bureau concordances (1987 SIC → 2002 NAICS, carried to 2022 NAICS).

What is the IRS business code for NAICS 212312?

212300 (Nonmetallic mineral mining & quarrying) on Schedule C, line B, from the IRS list of principal business codes. The IRS code covers NAICS 212311–212390.

How do I find government contracts for NAICS 212312?

Federal agencies put a NAICS code on each solicitation in SAM.gov, and some states and cities use NAICS codes too. Add 212312 to your SAM.gov registration and to your bid alerts; PublicBeam emails new bids for the codes you choose every morning.

Source: U.S. Census Bureau, 2022 NAICS (public domain). PublicBeam is independent and not affiliated with the Census Bureau or any agency. Always check the NAICS code in the official notice before you bid.