Wyoming Statutes Title 31. Motor Vehicles § 31-5-950. General braking requirements

(a) Every motor vehicle and every combination of vehicles shall have a service braking system which will stop the vehicle or combination within forty (40) feet from an initial speed of twenty (20) miles per hour on a level, dry, smooth, hard surface or within such shorter distance as may be specified by the superintendent.

(b) Every motor vehicle and combination of vehicles excluding motorcycles, motor-driven cycles and mopeds shall have a parking brake system adequate to hold the vehicle or combination on any grade on which it is operated under all conditions of loading on a surface free from snow, ice or loose material or which shall comply with performance standards issued by the superintendent.

(c) When necessary for safe operation, the superintendent may by regulation require additional braking systems.

(d) The superintendent may adopt performance requirements for braking systems under this section. In formulating these requirements, the superintendent shall consider standards of the United States Department of Transportation, recommendations of other agencies and organizations, different classes of vehicles, deceleration rates, speeds, weather, loads, terrain and all other factors bearing on safe highway operations.

(e) This section applies to motorcycles, motor-driven cycles, multipurpose vehicles and mopeds unless specifically excluded.