Colorado’s emergency vehicle laws require you to pull to the right and stop for any emergency vehicle approaching with lights or sirens, and to move over a lane or slow down for any vehicle stopped on the roadside with warning lights activated. The core rules sit in C.R.S. 42-4-705, and the penalties climb fast: a basic failure to yield is a traffic infraction, but a move-over violation that kills someone can be charged as a felony.
What to Do When an Emergency Vehicle Approaches
When an authorized emergency vehicle comes up behind or toward you using lights or a siren, C.R.S. 42-4-705(1) tells you exactly what to do. Pull to the right-hand edge or curb of the road, stay clear of any intersection, stop, and remain stopped until the vehicle has passed. Clear the farthest left lane when you can, so the responder has the widest possible path through.1Justia Law. Colorado Code 42-4-705 – Operation of Vehicle Approached by Emergency Vehicle If a police officer on scene is directing traffic, follow the officer instead.
The statute applies to “every other vehicle” without separating oncoming from same-direction traffic. On an undivided two-lane road, that effectively means drivers in both directions should pull over and stop. On a divided highway with a physical median, drivers going the opposite way are generally not expected to stop because the barrier already creates a safe corridor. The distinction is practical rather than spelled out in the statute, so when the situation is unclear, pull over.
What to Do When You See a Stopped Vehicle With Warning Lights
A separate rule under C.R.S. 42-4-705(2) governs stationary vehicles already pulled over with lights activated. On a road with at least two lanes going in your direction, you must move into a lane at least one full lane away from the stopped vehicle. If traffic, weather, or road conditions make a lane change unsafe, you must slow to a safe speed and proceed with due care.2Colorado Public Law. Colorado Revised Statutes 42-4-705 – Operation of Vehicle Approached by Emergency Vehicle
On a road without two same-direction lanes, there is nowhere to move, so the slow-down requirement applies automatically. The statute does not set a specific reduced speed. It requires you to account for the stopped vehicle’s position, the weather, the road, and surrounding traffic.
The 2023 Expansion to Any Vehicle With Hazard Lights
The move-over duty used to protect only stationary emergency vehicles, tow trucks, and public utility service vehicles. House Bill 23-1123 expanded it to cover any stationary motor vehicle displaying hazard or warning lights.1Justia Law. Colorado Code 42-4-705 – Operation of Vehicle Approached by Emergency Vehicle A stranded driver on the shoulder of I-25 with hazards flashing now gets the same legal protection as a trooper running a traffic stop. The Colorado State Patrol describes the current scope as including emergency responders, tow trucks, maintenance vehicles, and passenger vehicles.3Colorado State Patrol. Slow Down Move Over
Which Vehicles Trigger These Duties
An “authorized emergency vehicle” under Colorado law is a publicly owned vehicle operated by or for a government agency to protect life and property. That covers fire trucks, police cruisers, and ambulances. It also includes two categories of private vehicles: those designated by the state motor vehicle licensing agency as necessary for preserving life and property, and privately owned tow trucks approved by the Public Utilities Commission to respond to vehicle emergencies.4Colorado Department of Revenue. DR 2490 – Emergency Vehicle Equipment Authorization Application
The yielding duty is triggered by the signals, not the paint job. The emergency vehicle has to be using audible or visual signals meeting the standards in C.R.S. 42-4-213 or 42-4-222. An unmarked car running dark does not trigger the obligation. For the move-over duty after the 2023 expansion, any visible hazard or warning light on a stopped vehicle is enough.3Colorado State Patrol. Slow Down Move Over
Penalties
Colorado treats the two obligations differently, and the consequences escalate sharply when someone is hurt.
Failure to Yield to an Approaching Emergency Vehicle
Not yielding under C.R.S. 42-4-705(1) is a Class A traffic infraction. The general fine range for Class A infractions runs from $15 to $100, with surcharges added on top.5Colorado General Assembly. Penalties for Speeding Violations The conviction adds four points to your driving record.6FindLaw. Colorado Code 42-2-127 – Authority to Suspend License – To Deny License – Type of Conviction – Points
Move Over Violations
Failing to move over or slow down for a stationary vehicle under C.R.S. 42-4-705(2) is charged as careless driving under C.R.S. 42-4-1402, a Class 2 misdemeanor traffic offense. That carries up to 120 days in jail, a fine up to $750, or both, plus three points on your license.1Justia Law. Colorado Code 42-4-705 – Operation of Vehicle Approached by Emergency Vehicle6FindLaw. Colorado Code 42-2-127 – Authority to Suspend License – To Deny License – Type of Conviction – Points
If the violation is the proximate cause of bodily injury, the charge jumps to a Class 1 misdemeanor traffic offense, punishable by up to 364 days in jail and a fine up to $1,000, with six points assessed. If the violation causes a death, you face a Class 6 felony and eight points.1Justia Law. Colorado Code 42-4-705 – Operation of Vehicle Approached by Emergency Vehicle7Justia Law. Colorado Code 18-1.3-501 – Misdemeanors Classified – Penalties
How Points Threaten Your License
An adult driver 21 or older faces license suspension after reaching 12 points within any 12-month period or 18 points within any 24-month period.8Colorado Department of Revenue. Point Suspensions One failure to yield (four points) combined with a move-over violation causing injury (six points) puts you at ten from just two incidents. Add an ordinary speeding ticket and you may be looking at a suspension hearing.
Extra Rules at Fire Scenes
Fire scenes carry their own set of restrictions. Under C.R.S. 42-4-1403, any vehicle not on official business must stay at least 500 feet behind fire apparatus responding to a fire alarm, and no one may drive into or park within the block where fire apparatus has stopped to answer an alarm. Either violation is a Class A traffic infraction.9Justia Law. Colorado Code 42-4-1403 – Following Fire Apparatus and Parking Near Fire Scene
C.R.S. 42-4-1404 separately prohibits driving over any unprotected fire hose laid on a street, driveway, or highway without consent from the fire official in command. The rule applies at active fires, during alarm responses, and even during practice runs. Crossing a hose without permission is a Class B traffic infraction.10Justia Law. Colorado Code 42-4-1404 – Crossing Fire Hose