A Code 3 police response is a full emergency run with both lights and sirens activated, telling every driver and pedestrian within sight or earshot that the officer needs an unobstructed path. When you see or hear one coming, the law in every state requires you to pull to the right, stop, and wait for it to pass. A separate rule, the Move Over law, applies when the emergency vehicle is already parked on the shoulder.
Where Code 3 Fits Among Police Response Levels
Most police agencies use a tiered numbering system to tell officers how urgently to respond to a call:
- Code 1 is a routine response with no lights or sirens. The officer follows normal traffic laws and arrives when traffic allows.
- Code 2 is an urgent call where the officer may activate emergency lights but usually does not run the siren. Some jurisdictions let the officer treat red lights as yield signs; others simply expect a brisk but lawful drive.
- Code 3 is a full emergency response with both lights and sirens on.
Not every department uses this exact numbering. Some agencies label the tiers differently, and a handful of federal agencies use letter codes. What matters for you on the road is the combination of lights and sirens. When both are running, the vehicle is in emergency mode regardless of what the agency calls it internally.
When Officers Run Code 3
Code 3 is reserved for calls where seconds genuinely matter. Typical triggers include crimes in progress with a life at risk, active shooter or armed robbery calls, officers requesting emergency backup, and serious crashes with injuries. Police may also go Code 3 to reach a medical emergency when they are closer than an ambulance, or when pursuing a fleeing suspect who poses an immediate danger to the public.
Departments do not let officers flip the lights on at will. Most agencies require supervisor authorization or radio notification before a Code 3 response, and policies list the specific call types that justify it. An officer who runs Code 3 to a low-priority call without approval can face internal discipline. These restrictions exist because high-speed emergency driving is one of the most dangerous things officers do.
What You Must Do When a Code 3 Vehicle Approaches
Every state has a yield law modeled on the same framework from the Uniform Vehicle Code. The core requirements are straightforward:
- Steer toward the right-hand edge or curb as soon as you safely can.
- Clear the intersection. Do not stop in the middle of a crossroads. Either pull through first or stop before entering, then move right.
- Come to a full stop once you are as far right as possible.
- Stay stopped until the emergency vehicle has passed. Listen for additional sirens, because multiple units often respond to the same call.
Signal before you move over, check your mirrors, and avoid slamming the brakes. A panicked stop in the middle of a lane is more dangerous than a controlled pull to the shoulder. If you are on a divided highway and the emergency vehicle is on the other side of the median, most states do not require you to stop, but slowing down is still the smart move.
Handling Intersections and Pedestrians
Intersections are where most collisions with emergency vehicles happen. If you are sitting at a red light and hear a siren, do not run the light to get out of the way. Stay put unless you can clearly pull right without entering the intersection. If you are already inside the intersection when the siren hits, proceed through and then pull right and stop on the far side. Freezing in the middle of the crossroads blocks the emergency vehicle’s path and endangers cross traffic.
Pedestrians have duties too. If you are crossing a street or standing in a crosswalk when an emergency vehicle approaches, move to the nearest sidewalk or curb and stay there until it passes.
The Move Over Law for Stopped Emergency Vehicles
Yielding to an approaching emergency vehicle is one legal duty. A separate rule applies when you come upon an emergency vehicle already pulled over on the roadside with its lights flashing. All 50 states now have some version of a Move Over law, and the basic rule is the same everywhere: give that stopped vehicle as much room as possible.1NHTSA. Move Over: It’s the Law
In practice, that means two things. If you are on a multi-lane road and can safely move into a lane that is not directly next to the stopped vehicle, do that. If changing lanes is not possible because of traffic or road design, reduce your speed significantly as you pass.
These laws originally covered only traditional emergency vehicles like police cars, fire trucks, and ambulances. Many states have expanded them to include tow trucks, highway maintenance vehicles, utility trucks, and in some cases any vehicle displaying hazard lights on the shoulder. Nineteen states and Washington, D.C., now require drivers to move over for essentially any stopped vehicle with flashing lights.1NHTSA. Move Over: It’s the Law
Following Distance Behind an Emergency Vehicle
You are not allowed to follow closely behind an emergency vehicle running with lights and sirens. Most states set the minimum distance at 500 feet, though the exact number varies. The reason is practical. The vehicle may stop abruptly at the scene, other drivers may pull back into the lane unexpectedly, and keeping up means speeding. If an emergency vehicle passes you, hang well back and do not treat its cleared path as your personal fast lane.
What Officers Themselves Must Do
Running Code 3 gives officers legal permission to do things that would get any other driver a ticket. Under federal regulation and state law, the exemptions typically include exceeding posted speed limits, proceeding through red lights and stop signs after slowing enough to do so safely, parking in otherwise prohibited locations, and disregarding rules about turning and lane direction.2eCFR. 36 CFR 1004.3 – Authorized Emergency Vehicles
Those exemptions come with a limit. They do not erase the officer’s duty to drive with due regard for the safety of everyone on the road.2eCFR. 36 CFR 1004.3 – Authorized Emergency Vehicles Due regard means accounting for traffic, visibility, road surface, and pedestrians before blowing through an intersection or exceeding the speed limit. Courts across the country apply a reckless disregard standard: if the officer’s driving went beyond what a reasonable emergency responder would do under the circumstances, the exemptions do not protect them. Department policies often go further, capping how far an officer can exceed the limit and requiring near-normal speed at every intersection regardless of the light color.
Penalties for Failing to Yield or Move Over
Fines for failing to yield to an approaching emergency vehicle or violating a Move Over law vary widely by state. Base fines for a first offense typically start around $150 and can reach $1,000 or more depending on the jurisdiction. Repeat offenses carry higher fines, and some states double or triple the amount for a second violation within a set period.
Money is not the only consequence. Most states add points to your driving record for either violation, which can raise your insurance premiums. If your failure to yield or move over causes an injury or death, the stakes jump sharply. Many states escalate the charge to a misdemeanor or felony when emergency workers are hurt, with potential jail time and fines that can exceed $5,000. A handful of states also authorize license suspension in those serious cases.
If You Collide With a Code 3 Vehicle
Fault is not automatically assigned to either side in a crash with an emergency vehicle. Investigators look at what each driver did. If you failed to yield, ran a red light, or did not check your mirrors before pulling over, that weighs heavily against you. In most states, your compensation for any injuries would be reduced by your percentage of fault under comparative negligence rules. A few states still follow contributory negligence, which can bar recovery entirely if you share even a sliver of blame.
The officer and the employing agency can also carry liability. An officer who drove recklessly, ignored department protocols, or failed to activate the lights and sirens can be held responsible under the due regard standard. The city, county, or state may be on the hook if the crash resulted from inadequate training or a failure to enforce driving policies. Sovereign immunity can limit these claims, but most states have waived it for vehicle accidents to some degree. In a police pursuit, a fleeing suspect often carries significant liability for any collisions the chase causes, including those involving bystanders.
Claims after these collisions are complicated by the government’s involvement, which brings different notice deadlines and procedural rules than a standard car accident. Document everything at the scene and check your state’s deadline for filing a claim against a government agency, which is often much shorter than the usual statute of limitations.