(a) If an operator, holding a valid mining permit under W.S. § 35-11-401(j) for a small mining operation, intends to expand his operation within the approved permit area to remove more than thirty-five thousand (35,000) cubic yards of overburden, excluding topsoil, per year or affect more than ten (10) acres of land per year, excluding roads used to access the mining operation, the operator shall submit an application for a permit revision and obtain approval for the expansion prior to the time when he intends to exceed the established limits. The application shall include the following information:
(b) The provisions of W.S. § 35-11-406(d), (j) and (k) will be required. Any public hearing shall apply only to the request of the operator to expand his operation, and the valid small mining permit already held by the operator will not be affected.
020-9 Wyo. Code R. § 9-7