Montana Code 82-4-304. Exemption — works performed prior to promulgation of rules
82-4-304. Exemption — works performed prior to promulgation of rules. This part is not applicable to any exploration or mining work performed prior to the date of promulgation of the initial rules pursuant to 82-4-321 relating to exploration and mining. This part is not applicable to the reprocessing of tailings or waste rock that occurred prior to the date of promulgation of the initial rules regarding those activities. If, after the date of promulgation of initial rules applicable to mills not located at a mine site, work is performed at a mill that does not use cyanide ore-processing reagent and that was constructed and operated before promulgation of those rules, this part applies only to the areas initially disturbed after promulgation of those rules.
Terms Used In Montana Code 82-4-304
- Cyanide ore-processing reagent: means cyanide or a cyanide compound used as a reagent in leaching operations. See Montana Code 82-4-303
- Exploration: means :
(a)all activities that are conducted on or beneath the surface of lands and that result in material disturbance of the surface for the purpose of determining the presence, location, extent, depth, grade, and economic viability of mineralization in those lands, if any, other than mining for production and economic exploitation; and
(b)all roads made for the purpose of facilitating exploration, except as noted in 82-4-310. See Montana Code 82-4-303
- Tailings: means the residual materials remaining after a milling process that separates the valuable fraction from the uneconomic fraction of an ore mined by an operator. See Montana Code 82-4-303