Beginning Jan. 1, drivers will be required to move over to another lane or slow down by at least five miles an hour below the posted speed for any vehicle stopped next to the side of the road displaying hazard lights or other signs of distress. Under the current law, drivers have to move over (or if unable to move over safely, to slow down) only for an emergency vehicle, a roadside assistance vehicle, a tow vehicle or ambulance, when it is displaying warning lights.