Variant of NAICS 1997 - Goods and services
- 11-33 - Goods
- 21 - Mining and Oil and Gas Extraction
- 212 - Mining (except Oil and Gas)
- 2121 - Coal Mining
- 21211 - Coal Mining
- 212114 - Bituminous Coal Mining
- 212115 - Subbituminous Coal Mining
- 212116 - Lignite Coal Mining
- Date modified: