Wyo. Stat. § 31-5-306: Charging violations; burden of proving proximate cause.

(a) In every charge of violation of any speed regulation in this act except a charge under W.S. 31-5-301(a) the complaint, also the summons or notice to appear, shall specify the speed at which the defendant is alleged to have driven, also the maximum speed applicable within the district or at the location.

(b) The provision of this act declaring maximum speed limitations shall not be construed to relieve the plaintiff in any action from the burden of proving negligence on the part of the defendant as the proximate cause of an accident.