(a) A contested case shall be commenced upon the filing of a formal complaint with the assistance of the attorney general. It shall be filed with the Board and shall set forth:
(b) The Board shall issue a Notice of Hearing which shall set forth the time, place and nature of the hearing. Hearings shall be conducted at a location determined by the Board.
(c) The notice and complaint shall be served either personally or by mail at least twenty (20) days prior to the date set for hearing. If mailed Notice shall be sent by certified or registered mail with return receipt thereof to the last known address of licensee.
(d) At any time prior to the date set for hearing, the formal complaint may be amended.
079-8 Wyo. Code R. § 8-4