# NAICS 212115: Underground Coal Mining

Breadcrumb: [NAICS codes](https://bidrover.com/naics) › [212115 Underground Coal Mining](https://bidrover.com/naics/212115)

This U.S. industry comprises establishments primarily engaged in one or more of the following: (1) underground mining of bituminous and anthracite coal; (2) developing bituminous and anthracite coal underground mine sites; and (3) underground mining and beneficiating (e.g., cleaning, washing, screening, and sizing) of bituminous and anthracite coal.

- NAICS code: 212115
- Title: Underground Coal Mining
- Sector: 21 Mining, Quarrying, and Oil and Gas Extraction
- Subsector: 212 Mining (except Oil and Gas)
- Industry group: 2121 Coal Mining
- NAICS industry: 21211 Coal Mining
- SBA size standard: 1,500 employees
- Open bids on BidRover: 0

## Open bids (0)

No open bids cite this code right now.

## Frequently asked questions

### What is NAICS code 212115?

NAICS 212115 is "Underground Coal Mining" in the 2022 North American Industry Classification System, in sector 21 (Mining, Quarrying, and Oil and Gas Extraction). This U.S. industry comprises establishments primarily engaged in one or more of the following: (1) underground mining of bituminous and anthracite coal; (2) developing bituminous and anthracite coal underground mine sites; and (3) underground mining and beneficiating (e.g., cleaning, washing, screening, and sizing) of bituminous and anthracite coal.

### What is the SBA size standard for NAICS 212115?

A business is small under NAICS 212115 at or below 1,500 employees, including affiliates (13 CFR 121.201). Confirm the standard named in each solicitation.

### How many government bids are open under NAICS 212115?

No open bid in BidRover cites NAICS 212115 right now. Many state and local notices do not list a NAICS code, so a keyword alert for this work catches more of them.

### How do I get alerts for NAICS 212115 bids?

Save an alert on this page. A free account gets new matching bids by weekly email; the Team plan ($19/mo) sends daily alerts with match scores, the buyer, source link and documents.

## Related NAICS codes

- [212114 Surface Coal Mining](https://bidrover.com/naics/212114)
- [213113 Support Activities for Coal Mining](https://bidrover.com/naics/213113)
- [324199 All Other Petroleum and Coal Products Manufacturing](https://bidrover.com/naics/324199)
- [331110 Iron and Steel Mills and Ferroalloy Manufacturing](https://bidrover.com/naics/331110)

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Code titles and definitions: U.S. Census Bureau, North American Industry Classification System (NAICS), 2022 (https://www.census.gov/naics/). Size standards: U.S. Small Business Administration, Small Business Size Standards, 13 CFR 121.201, eCFR text current as of 2026-10-21 (https://www.ecfr.gov/current/title-13/section-121.201).

BidRover lists bids from official public sources. It is not an issuing authority; confirm the NAICS code and size standard named in each solicitation.