Upon roadways, such as the interstate, with at least two lanes for traffic proceeding in the same direction, vehicles must move into a lane not immediately adjacent to the emergency or roadside service vehicle, and shall remain in that lane until safely clear. If changing lanes cannot be done safely, vehicles must slow down and maintain a safe speed for traffic conditions. Upon a roadway with only one directional lane, vehicles must slow down and operate at a reduced speed until completely past the emergency or roadside service vehicle. In addition to a fine and a loss of demerit points on one’s driving record, drivers who violate this law and contribute to an accident face suspension of their license.
The statute governing this topic is 346.072.