045-30 Wyo. Code R. § 30-1
(a) These rules are promulgated by authority of W.S. 31-5-303 and W.S. W.S. W.S. 31-5-304 to administer the process by which local authorities may establish minimum and maximum speed limits as described in W.S. W.S. W.S. 31-5-303 and W.S. W.S. W.S. 31-5-304.
(b) These rules create the provisions and the format whereby local governments and counties may locally establish speed limits. These rules are enacted to reduce local burdens, streamline data gathering, describe systematic review or analysis, maintain nationally accepted engineering procedures or practices while fostering local autonomy, and allow for assistance and training from the Wyoming Department of Transportation (WYDOT) for local establishment of speed limits.
045-30 Wyo. Code R. § 30-1