020-15 Wyo. Code R. § 15-7
(a) The Administrator may terminate jurisdiction over the reclaimed site of a completed surface coal mining and reclamation operation, or increment thereof, when the Administrator determines in writing that all requirements imposed under the rules and regulations and Environmental Quality Act have been successfully completed and the Administrator has made a final decision in accordance with Chapters 4 and 15 to release the performance bond fully.
(b) Following a termination under paragraph (a) of this Section, the Administrator shall reassert jurisdiction over a site if it is demonstrated that the bond release or written determination referred to in paragraph (a) of this Section was based upon fraud, collusion, or misrepresentation of a material fact.
020-15 Wyo. Code R. § 15-7