PART 819—SPECIAL PERMANENT PROGRAM PERFORMANCE STANDARDS-AUGER MINING
- 819.1—Scope.
- 819.11—Auger mining: General.
- 819.13—Auger mining: Coal recovery.
- 819.15—Auger mining: Hydrologic balance.
- 819.17—Auger mining: Subsidence protection.
- 819.19—Auger mining: Backfilling and grading.
- 819.21—Auger mining: Protection of underground mining.