StacksVerified U.S. regulatory reference

40 CFR §440.60

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
The provisions of this subpart F are applicable to discharges from (a) mines that produce tungsten ore and (b) mills that process tungsten ore by either the gravity separation or froth-flotation methods.