Yes, you have to pull over for an ambulance on a highway. Every state requires drivers to yield the right-of-way to an authorized emergency vehicle running lights and a siren, and on a highway that means signaling, easing to the right-hand edge of the roadway, and stopping there until the ambulance has passed. The obligation applies whether the ambulance is behind you, ahead of you, or coming from a cross street, and it applies on multi-lane highways just as it does on city streets.
What the Law Requires
When an authorized emergency vehicle approaches using audible and visual signals, every other driver must yield. The Uniform Vehicle Code, which most states track closely, tells drivers to move parallel to and as close as possible to the right-hand edge or curb, clear of any intersection, and to stop and remain there until the emergency vehicle has passed. State wording varies, but the substance is the same across all 50 states.
Nothing about a highway changes that duty. Higher speeds and more lanes change how you carry it out, not whether you have to.
The Divided Highway Exception
One situation lets you keep going. If the ambulance is traveling in the opposite direction on a divided highway with a physical barrier between the two sides, such as a concrete median or barrier wall, you generally don’t need to pull over. The barrier prevents the ambulance from crossing into your lanes, so stopping would only add congestion and risk on your side.
A painted line or a narrow grass strip is not a barrier. If the divider wouldn’t actually stop a vehicle from crossing, the standard yield rule still applies.
How to Yield Safely at Highway Speed
At 65 mph, a panicked reaction is more dangerous than the ambulance itself. Slamming the brakes in a travel lane invites a rear-end collision and can block the very path the ambulance is trying to use.
Check your mirrors as soon as you hear a siren or see flashing lights. Signal your intention to move right so drivers around you can adjust. Slow down gradually and merge toward the rightmost lane or the shoulder. If you’re already in the right lane, ease as far right as you safely can. Stay stopped until the ambulance has fully passed and traffic starts moving again.
If you’re inside an intersection when the ambulance approaches, clear the intersection first, then pull right. Stopping in the middle of one blocks the ambulance and creates a collision point for cross traffic. In construction zones or on stretches with no real shoulder, move as far right as is safe. You aren’t expected to drive into a ditch.
What Not to Do
- Don’t brake suddenly in a travel lane. Decelerate gradually while moving right.
- Don’t freeze in the left or center lane. That forces the ambulance to weave around you and blocks other drivers trying to yield.
- Don’t try to outrun the ambulance or race through an intersection before it arrives. It’s illegal in most states.
- Don’t pull left. Emergency vehicles often use the left lane or a center turn lane to get past traffic, so pulling left can put you directly in their path.
- Don’t tailgate after it passes. Many states prohibit following within 500 feet of an emergency vehicle responding with lights on, and the ambulance may stop abruptly at the scene.
Penalties for Failing to Yield
Fines for a first offense typically run from about $150 to over $500, and some states impose fines above $1,000 for repeat or aggravated violations. Most states also add points to your driving record, which can raise your insurance premiums for years and, if enough accumulate, contribute to a license suspension.
The stakes climb sharply if failing to yield causes a crash. When an emergency worker or patient is injured or killed because a driver didn’t get out of the way, charges can escalate beyond a traffic ticket to criminal offenses that carry potential jail time.
A Note on Stopped Ambulances
Pulling over is the rule for an ambulance that’s moving toward you. A different rule, the Move Over law, applies when you approach an ambulance or other emergency vehicle already stopped on the roadside with its lights flashing: you either change out of the lane next to it or slow to a safe speed if you can’t change lanes. All 50 states have some version of it, and in 19 states plus Washington, D.C., it now covers any vehicle with flashing or hazard lights, including tow trucks and disabled cars.1National Highway Traffic Safety Administration. Move Over: It’s the Law Treating any stopped vehicle with flashing lights as a Move Over situation is the safest approach.