| 2007 NAICS | 2012 NAICS | 2017 NAICS | Corresponding Index Entries | |||
| 213113 | 213113 | 213113 | Anthracite mine tunneling on a contract basis | |||
| 213113 | 213113 | 213113 | Anthracite mining services (except site preparation and related construction contractor activities) on a contract basis | |||
| 213113 | 213113 | 213113 | Auger coal mining services (except site preparation and related construction contractor activities) on a contract basis | |||
| 213113 | 213113 | 213113 | Bituminous coal mining services (except site preparation and related construction contractor activities) on a contract basis | |||
| 213113 | 213113 | 213113 | Bituminous coal or lignite surface mine site development (except site preparation and related construction contractor activities) on a contract basis | |||
| 213113 | 213113 | 213113 | Bituminous coal stripping service on a contract basis | |||
| 213113 | 213113 | 213113 | Bituminous or lignite auger mining service on a contract basis | |||
| 213113 | 213113 | 213113 | Blasting services, coal mining, on a contract basis | |||
| 213113 | 213113 | 213113 | Coal mining services (except site preparation and related construction contractor activities) | |||
| 213113 | 213113 | 213113 | Coal mining support services (tunneling, blasting, training, overburden removal)(except site preparation and related construction contractor activities) | |||
| 213113 | 213113 | 213113 | Culm bank recovery, anthracite, on a contract basis | |||
| 213113 | 213113 | 213113 | Culm bank recovery, coal, on a contract basis | |||
| 213113 | 213113 | 213113 | Draining or pumping coal mines on a contract basis | |||
| 213113 | 213113 | 213113 | Drilling services for coal mining on a contract basis | |||
| 213113 | 213113 | 213113 | Exploration services for coal (except geophysical surveying and mapping) on a contract basis | |||
| 213113 | 213113 | 213113 | Lignite mining services (except site preparation and related construction contractor activities) on a contract basis | |||
| 213113 | 213113 | 213113 | Mine shaft sinking services for coal mining on a contract basis | |||
| 213113 | 213113 | 213113 | Mine tunneling services for coal mining on a contract basis | |||
| 213113 | 213113 | 213113 | Overburden removal for coal mining on a contract basis | |||
| 213113 | 213113 | 213113 | Prospect and test drilling services for coal mining on contract basis | |||
| 213113 | 213113 | 213113 | Pumping or draining coal mines on a contract basis | |||
| 213113 | 213113 | 213113 | Removal of overburden for coal mining on a contract basis | |||
| 213113 | 213113 | 213113 | Shaft sinking for coal mines on a contract basis | |||
| 213113 | 213113 | 213113 | Sinking shafts for coal mining on a contract basis | |||
| 213113 | 213113 | 213113 | Stripping overburden services for coal mining on a contract basis | |||
| 213113 | 213113 | 213113 | Tunneling services for coal mining on a contract basis |