Driver's License Test Prep

Following-Distance & Headlight Rules, by State

How far back to follow another vehicle, when to dim high beams for oncoming and following traffic, and the move-over law for emergency vehicles.

This table compares Move Over for a stopped emergency or service vehicle. Still being verified state by state, and already on each state's own page where we have it: Following-distance rule, Dim high beams within (ft): oncoming, Dim high beams within (ft): following, Headlight requirements, Min following distance behind emergency vehicle (ft), Motorcycle following rule, Cyclist safe-passing rule, Defensive-driving framework.

State Move Over for a stopped emergency or service vehicle
Alabama On a road with two or more lanes going your way, vacate the lane closest to a st...
Alaska Approaching a stopped emergency, fire, law-enforcement, tow, road-maintenance or...
Arizona Approaching any stopped vehicle displaying flashing or warning lights on a road...
Arkansas Approaching any authorized vehicle stopped or parked on the road or shoulder sho...
California Approaching any stationary vehicle displaying warning lights on the roadside, ap...
Colorado When you approach any stationary vehicle on the shoulder showing emergency, tow,...
Connecticut Connecticut's Move Over law reaches any vehicle stopped on the shoulder, not jus...
Delaware Approaching any stopped vehicle displaying a warning signal, move into a lane no...
District of Columbia Approaching a stationary emergency vehicle with its lights or siren on, change i...
Florida Vacate the lane closest to a stopped emergency, sanitation, utility, wrecker, ro...
Georgia Approaching a stopped emergency, tow, recovery, highway maintenance, utility or...
Hawaii Approaching an emergency vehicle stopped with its emergency lights flashing, slo...
Idaho For a police car, emergency vehicle, tow truck, or highway incident response veh...
Illinois Approaching a stopped emergency vehicle or emergency scene with lights flashing,...
Indiana Change lanes away from any stopped vehicle showing emergency, amber, or hazard l...
Iowa Approaching any stopped vehicle with flashing lights, including an ordinary car...
Kansas Move over for anything stopped on the shoulder with warning lights on, including...
Kentucky Approaching a stopped emergency vehicle, public safety vehicle, or any disabled...
Louisiana When any vehicle lawfully displaying visual warning signals, including alternate...
Maine Passing a stopped emergency vehicle showing an emergency light, or a stopped pub...
Maryland Maryland's Move Over law reaches any vehicle stopped, standing or parked on a hi...
Massachusetts Approaching a stationary emergency response vehicle, highway maintenance vehicle...
Michigan Approaching a stopped emergency vehicle with its lights flashing, slow to at lea...
Minnesota Approaching a stopped vehicle with emergency, flashing or warning lights on, mov...
Mississippi When an emergency vehicle is stopped on the side of a four-lane highway with its...
Missouri Approaching a stationary vehicle showing red, red and blue, amber, or amber and...
Montana Approaching a stopped law enforcement, emergency or highway worker vehicle showi...
Nebraska Move over a full lane for any stopped vehicle with someone in or near it on a co...
Nevada On approaching any traffic incident, and unless a law enforcement officer direct...
New Hampshire New Hampshire's move-over duty is unusually broad: it covers any stopped or stan...
New Jersey Change lanes away from any stopped emergency vehicle, tow truck, highway mainten...
New Mexico When you approach a stopped emergency vehicle, or a tow, recovery or repair vehi...
New York Slow down for any emergency or hazard vehicle stopped with its emergency, amber,...
North Carolina When an emergency vehicle or a public service vehicle is stopped within 12 feet...
North Dakota On the interstate, or on a multilane highway outside city limits, when an emerge...
Ohio Approaching any stationary public safety, emergency, road service, waste collect...
Oklahoma Under the Bernardo-Mills Law, when you approach any stationary vehicle displayin...
Oregon Oregon's move-over law applies to any motor vehicle stopped with its lights flas...
Pennsylvania Move into a lane that is not next to an emergency response area or a disabled ve...
Rhode Island Approaching any vehicle stopped within 12 feet of the roadway with warning light...
South Carolina When you approach a stopped emergency vehicle with its lights flashing, you must...
South Dakota South Dakota goes further than most states.
Tennessee Approaching any stationary emergency, utility, highway maintenance, solid waste,...
Texas Approaching a covered vehicle stopped on the road, most of them showing warning...
Utah Approaching any stationary vehicle stopped beside the highway with warning light...
Vermont Approaching a stationary law enforcement vehicle with blue lights, a stationary...
Virginia On a highway with at least four lanes and at least two going your way, you must...
Washington Approaching any stopped emergency, police, tow, roadside assistance, constructio...
West Virginia Approaching any stationary vehicle showing warning lights, hazard flashers, flar...
Wisconsin Approaching a stopped emergency, tow, highway maintenance or utility vehicle wit...
Wyoming When an emergency vehicle is parked with its lights on, or a municipal, public u...

51 states verified. Tap a state for source citations and full Following-Distance & Headlight Rules detail.

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