Wyo. Stat. § 41-3-212
It shall be the duty of the board of control at its next regular meeting following the receipt of such petition to examine same and ascertain if it sets forth all the facts required by W.S. 41-3-210, and the validity of the water right granted by the adjoining state. Upon it being made to appear to the satisfaction of the board of control that the requirements of law and the regulations of the board have been complied with and that the petitioner is entitled to make the proposed changes, the said petition shall be referred to the division superintendent of the proper water division for a public hearing to be held not later than one hundred and twenty (120) days, following the date so referred. The said superintendent shall, by order, require all persons interested to appear on said certain day to show cause why the petition should not be granted. The said order shall be published for four (4) consecutive weeks in a newspaper having general circulation in the county where the proposed change of point of diversion is located; provided, that the consent of all owners of intervening diversions be secured, or that those not secured shall be notified by registered mail at least thirty (30) days prior to the hearing date. Any party who may claim injury on account of said proposed change of point of diversion shall have the right to appear before the superintendent at the public hearing as ordered, and present evidence in support of said claim. The evidence of such hearing shall be confined to the subjects enumerated in the notice for hearing. Upon completion of the taking of testimony in such hearing, it shall be the duty of the division superintendent to transmit same to the office of the board of control together with a written report setting forth the procedure followed and the results accomplished. At the next regular meeting, the board shall consider the evidence transmitted and enter a proper order either granting or denying the petition.
W.S. 41-3-212