CFR / 
Title 40
 / Part 440
 / 
Sec. 440.60 Applicability; description of the tungsten ore subcategory.
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.
Sec. 440.61 [Reserved]