The Move Over Law: What It Requires in Every State

Flashing lights on the shoulder ahead. A trooper standing at a driver's window, a tow operator kneeling by a wheel, or just a minivan with its hazards on and a family standing in the grass. What you do in the next five seconds is covered by a law that exists in every state, and the list of who it protects has been growing fast. Here's what the move over law requires, which vehicles count where you live, and what to do when you physically can't change lanes.

What the move over law requires

The rule has two parts, and you need to know both:

1. Move over. When you approach a protected vehicle stopped on the shoulder or roadside with its lights flashing, change out of the lane next to it, if you can do so safely.
2. Slow down. If you can't change lanes safely, or you're on a road with only one lane in your direction, reduce your speed and pass with caution.

That's the core everywhere. The details, such as how much to slow down and which vehicles count, are set by each state. South Carolina passed the first version in 1996, and Hawaii completed the set in 2012. Today, according to the National Highway Traffic Safety Administration's Move Over campaign, all 50 states and Washington, D.C., have a move over law on the books.

The law shows up on knowledge tests too, usually as a scenario question: "You approach a police car stopped on the shoulder with its lights flashing. What should you do?" The answer is always the two-step: move over if safe, otherwise slow down.

Which vehicles are covered

Every state covers law enforcement, fire and EMS vehicles with emergency lights activated. Beyond that, coverage expanded in waves. Most states now also include:

• Tow trucks and wreckers with flashing amber lights
• Highway maintenance and construction vehicles
• Utility service vehicles (power, gas, telecom crews)
• Roadside assistance vehicles, including state "safety service patrol" trucks
• Solid waste and sanitation trucks in some states

The trend is clear: if a vehicle is stopped on the roadside with warning lights, assume your state wants you to give it room.

States that include any vehicle with hazards

The newest wave covers ordinary drivers. A family with a flat tire is in just as much danger as a trooper, and more states now say so in law.

As of mid-2025, NHTSA counted 19 states plus Washington, D.C. whose move over laws apply to all vehicles with flashing or hazard lights, including disabled passenger vehicles. Several states joined the list around that time:

Because laws keep changing, the safest habit is simple: treat every vehicle with hazard lights on the shoulder as if the law covers it. Even in states where it doesn't yet, it's what a careful driver does, and it's what an examiner wants to see.

What to do if you can't change lanes

Moving over isn't always possible. Traffic might be packed in the next lane, you might be on a two-lane road, or the stopped vehicle might be in a merge area. Here's the safe sequence:

1. Spot it early. Scan far ahead on highways. Lights on the shoulder half a mile away give you time to plan.
2. Check mirrors and blind spot. Signal and move over only if the gap is safe. Never swerve.
3. If you can't move over, slow down significantly. Lift off the gas early and brake smoothly so the driver behind you isn't surprised.
4. Pass with your eyes up. Watch for people stepping out, doors opening or debris.
5. Return to your lane only when the stopped vehicle is well behind you.

How much is "slow down"? Some states put a number on it. Florida, for example, requires drivers who can't move over to slow to 20 mph below the posted limit when the limit is 25 mph or more, or to 5 mph when the limit is 20 mph or less. Other states simply say "a reasonable and prudent speed." If your state's manual gives a number, memorize it; it's a classic test question.

Fines and points

Penalties vary a lot by state, and many states have raised them in recent years. Expect some combination of:

• A fine, which can run from modest to several hundred dollars on a first offense, and often more if a worker is injured
• Points on your license
• Higher penalties for causing property damage, injury or death, including possible license suspension and, in some states, jail time

Because the dollar amounts change often, check your state's manual or licensing agency for current figures. Points can raise your insurance and, for teens on a provisional license, can trigger suspension sooner than for adults. Our guide on how points on your license work explains how that adds up.

Why roadside workers need it

The shoulder of a highway is one of the most dangerous workplaces in the country. A person changing a tire or writing a report stands just a few feet from traffic moving at highway speed, often with their back to it. Distracted or drowsy drivers drift toward lights, and at night, flashing lights can draw the eye and the steering wheel along with it.

Police officers, firefighters, EMTs, tow operators and highway crews are struck and killed on the roadside every year, according to NHTSA and the NHTSA Move Over guidance, and people outside disabled cars face the same danger. A lane of empty space is the cheapest safety equipment there is.

The move over law sits alongside other "give them room" rules you'll see on the permit test, like when to stop for a school bus and yielding to emergency vehicles. If you want to check yourself on these scenarios, our free practice tests include them.

Frequently asked questions

Do you have to move over for a car with hazards?

In a growing number of states, yes. As of mid-2025, 19 states plus D.C. covered any vehicle with hazards, and others have joined since. Even where it's not required, moving over is the safe choice.

How much should you slow down when you can't move over?

Some states set a number, such as Florida's 20 mph below the posted limit on roads of 25 mph or more. Others require a "safe and prudent" speed, so check your state's driver manual.

Is the move over law in all states?

Yes. All 50 states and Washington, D.C., have one. What differs is which vehicles are covered, how much you must slow down and the penalties.