move over law
n.— «Florida has what’s called a Move Over law. Here’s how the driver’s handbook explains it: “When driving on interstate highways or other highways with two or more lanes traveling in the direction of the emergency vehicle,…drivers approaching a law enforcement or other authorized emergency vehicle parked on the roadway with their emergency lights activated will be required to leave the lane closest to the emergency vehicle, as soon as it is safe to do so.”» —“Red lights? Blue lights? It depends” by Ron Hartung Tallahassee Democrat (Florida) June 22, 2006. (source: Double-Tongued Dictionary)