43 C.F.R. § 3596.1 Milling.
Title 43 - Public Lands: Interior
The operator/lessee shall conduct milling operations in accordance with the established requirements. The operator/lessee shall use due diligence in the reduction, concentration or separation of mineral substances by mechanical or chemical processes or other means so that the percentage of salts, concentrates, or other mineral substances recovered and waste generated shall be in accordance with the approved practices.
Title 43: Public Lands: Interior
PART 3590—SOLID MINERALS (OTHER THAN COAL) EXPLORATION AND MINING OPERATIONS
Subpart 3596—Waste From Mining or Milling
§ 3596.1 Milling.
