Wyo. Stat. § 11-33-104
At the hearing, if satisfied that at least seventy-five percent (75%) of the landowners owning at least seventy-five percent (75%) of the land in the proposed livestock district who are resident in and qualified electors of Wyoming are in favor of the enforcement of the livestock law and that it would be beneficial to the district, the board of county commissioners shall make an order creating the livestock district in accordance with the prayer of the petition or with such modifications as it may choose to make. The order shall specify a certain time at which it takes effect which shall be at least thirty (30) days after the making of the order. The order shall continue in force until vacated or modified by the board of county commissioners upon the petition of seventy-five percent (75%) of the landowners owning seventy-five percent (75%) of the land in the district who are resident in and qualified electors of Wyoming.
W.S. 11-33-104