StacksVerified U.S. regulatory reference

30 CFR §817.59

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov
Underground mining activities shall be conducted so as to maximize the utilization and conservation of the coal, while utilizing the best technology currently available to maintain environmental integrity, so that reaffecting the land in the future through surface coal mining operations is minimized.