021-1 Wyo. Code R. § 1-10
(a) A Board member shall recuse himself from all proceedings relating to a matter if he has a personal or private interest in the matter. The member shall recuse himself by serving a written notice of recusal upon the Chairman, who shall deliver copies of the notice to all other members of the Board, to the Commissioner and to any parties involved in the matter. On and after the date of recusal, the recused member shall not participate in any deliberations, decisions or other actions of the Board relating to the matter.
(b) A recused Board member may attend hearings and other proceedings related to a recused matter as a member of the public. He may also attend any Board meeting at which topics relating to the matter arise and participate in the deliberations, decisions and other actions of the Board relating to topics unrelated to the matter.
021-1 Wyo. Code R. § 1-10