Wyoming Statute 31-5-224 states when an authorized emergency vehicle making use of any visual signals is parked, the driver of every other vehicle, as soon as it is safe:
- When driving on an interstate highway or other highway with two (2) or more lanes traveling in the direction of the emergency vehicle, shall merge into the lane farthest from the emergency vehicle, except when otherwise directed by a police officer.
- When driving on a two (2) lane road, shall slow to a speed that is twenty (20) miles per hour less than the posted speed limit, except when otherwise directed by a police officer.
A violation of this law can result in a $220 citation.
Wyoming has had a Slow Down / Move Over law in place since 2001.