(a) All mining operations or operations by which solid minerals are intended to be extracted from the earth, which are commenced or conducted after the effective date of these rules and regulations, shall comply with the requirements hereof, except as specific exemptions are allowed by the Act.
(b) The discretionary exemptions shall be limited as follows:
(c) Uranium mill tailings and uranium mill tailings impoundments permitted prior to March 13, 1987 may remain in or be removed from the permit area at the option of the permittee. Those tailings and impoundments remaining in the permit area will be regulated according to the conditions in the permit. Permit conditions relating to the uranium mill tailings and uranium mill tailing impoundments shall be amended as requested by the permittee. Removal of tailings areas and impoundment areas from the permit area shall be approved by the Administrator at the request of the permittee and may be accomplished either through a permit revision or through the annual report.
020-1 Wyo. Code R. § 1-3