045-30 Wyo. Code R. § 30-2
(a) To establish minimum and maximum speed limits for paved roads as described in W.S. 31-5-303 and W.S. W.S. W.S. 31-5-304, local authorities shall comply with the national standards for such roads as detailed in Procedures for Establishing Local Authority Set Speed Limits on Wyoming Paved Roads as adopted by the Transportation Commission of Wyoming and provided in Appendix I.
(b) To establish minimum and maximum unpaved road speed limits as described in W.S. W.S. W.S. 31-5-303 and W.S. W.S. W.S. 31-5-304, local authorities shall comply with the provisions of Standards and Procedures for Establishing Speed Limits on Wyoming Unpaved Roads as adopted by the Transportation Commission of Wyoming and provided in Appendix II.
045-30 Wyo. Code R. § 30-2