Colorado's New Felony Law for Deadly Negligent Driving: What Changed on September 1, 2026
One major Colorado traffic law change took effect September 1, and it's worth knowing about. The good news? You don't need to spend your lunch break reading Colorado statutes, we did the boring part for you.
Colorado law now specifically states that a driver who causes another person's death while driving with criminal negligence can be charged with criminally negligent homicide, a Class 5 felony.
In other words, the consequences of criminally negligent driving can now extend far beyond a traffic violation.
So does every deadly crash now mean a felony charge? No. The law specifically involves criminal negligence, not simply being involved in a crash where someone dies. But it's another reminder that what happens in the moments before a serious crash matters. Driving behavior, evidence, witness statements, police reports, and the circumstances surrounding the collision can all become important afterward.
What Actually Changed
The law is Senate Bill 26-072, officially titled "Increased Penalty for Vehicular Homicide & Assault." Governor Polis signed it on May 28, 2026, and it took effect September 1, 2026. The bill adds a new subsection to Colorado's criminally negligent homicide statute, C.R.S. § 18-3-105, that explicitly covers vehicular conduct: a person now also commits criminally negligent homicide if they operate or drive a motor vehicle with criminal negligence, and that conduct is the proximate cause of another person's death.
Before this law, Colorado prosecutors often had an awkward gap to work with. A fatal crash caused by ordinary negligence, without evidence of recklessness, DUI, or another aggravating factor, frequently could only be charged as a Class 1 misdemeanor "careless driving resulting in death," the same category as a routine traffic ticket. The next rung up, vehicular homicide, generally requires proof of recklessness or intoxication. SB26-072 closes that gap by giving district attorneys a felony option that sits between the two.
Before vs. After SB26-072
| Before September 1, 2026 | After September 1, 2026 | |
|---|---|---|
| Ordinary negligence causing death | Class 1 misdemeanor ("careless driving resulting in death"), county jail exposure | Can be charged as criminally negligent homicide, a Class 5 felony, state prison exposure |
| Distracted driving (cell phone) causing death | Automatically capped at a Class 1 misdemeanor, regardless of the underlying negligence | That automatic misdemeanor cap is repealed; can now be charged as criminally negligent homicide |
| Vehicular homicide / vehicular assault | Eligible for probation in many cases | Now classified as crimes of violence, generally ineligible for probation, with enhanced sentencing |
| Driver's license after conviction | Varied by case | Mandatory license revocation, and the conviction counts toward Habitual Traffic Offender status |
The Distracted-Driving Loophole It Closes
One of the more notable pieces of SB26-072 involves cell phones. Under the old law, if a driver killed someone while using a mobile device, that specific circumstance was automatically classified as a Class 1 misdemeanor, regardless of how negligent the underlying conduct was. SB26-072 repeals that automatic cap. A fatal crash involving phone use while driving can now be charged as criminally negligent homicide, a Class 5 felony, just like any other instance of criminal negligence behind the wheel.
Vehicular Homicide and Assault Are Now "Crimes of Violence"
SB26-072 also reclassifies vehicular homicide and vehicular assault, the charges that already applied to reckless or DUI-related fatal and serious-injury crashes, as crimes of violence under Colorado law. That reclassification matters in practice: a crime-of-violence conviction generally makes a defendant ineligible for probation and subjects them to mandatory, often longer, sentencing ranges rather than the more flexible options a court might otherwise consider.
A Local Connection
SB26-072 passed the Colorado Senate unanimously, 31–0. One of its lead sponsors, Senator Marc Snyder, represents Senate District 12, which includes Manitou Springs, right here in the Pikes Peak region, and previously served as Manitou Springs' mayor. Supporters framed the bill as closing a real gap that families who lost loved ones on Colorado roads had been pointing out for years: the choice prosecutors faced between a misdemeanor that didn't fit the loss and a felony that required proving recklessness the facts didn't always support.
Does this mean every fatal crash is now a felony case? No. The law still requires proof of criminal negligence, a legal standard well above simply being involved in a crash where someone dies, and different from the strict-liability idea that a death alone equals a crime. What qualifies as criminal negligence is fact-specific, and it's exactly the kind of question that gets argued out using police reports, witness statements, and crash reconstruction evidence.
The Part Colorado Drivers Should Remember
Most of us are not going to memorize traffic statutes, and you shouldn't have to. Know the rules. Pay attention behind the wheel. And if you're ever hurt in a crash, or you lose someone you love in one, don't be afraid to ask questions about what happened, what your insurance covers, and what your options are.
It's worth understanding, too, that a criminal charge like this one and a civil injury or wrongful death claim are two separate tracks. Whether or not a driver is criminally charged, a family may still have the right to pursue compensation civilly, and evidence gathered for a criminal case (police reports, the responding agency's findings, witness statements) can often support a civil claim as well. Colorado's modified comparative negligence rule and standard civil deadlines still apply regardless of how, or whether, the criminal case proceeds.
That's where being stubborn can come in handy.
Frequently Asked Questions
What is SB26-072?
Senate Bill 26-072 is a Colorado law, signed May 28, 2026 and effective September 1, 2026, that adds vehicular conduct to the state's criminally negligent homicide statute (C.R.S. § 18-3-105). It allows a driver whose criminal negligence causes another person's death to be charged with a Class 5 felony, repeals the old automatic misdemeanor cap for cell-phone-related fatal crashes, and reclassifies vehicular homicide and vehicular assault as crimes of violence.
Does this mean I could go to prison for any fatal car accident?
No. The law applies specifically to conduct that meets the legal standard for criminal negligence, not to every crash where someone tragically dies. Being involved in a fatal accident is not, by itself, a crime.
What's the difference between this new felony and vehicular homicide?
Vehicular homicide generally requires proof of recklessness or intoxication (DUI/DWAI). The new criminally negligent homicide provision under SB26-072 fills the space below that, for cases involving ordinary criminal negligence that previously could only be charged as a misdemeanor.
Is a criminal charge the same as a civil injury or wrongful death claim?
No. A criminal case is brought by the state and results in penalties like prison time, probation restrictions, or license revocation. A civil injury or wrongful death claim is a separate matter brought by the injured person or their family to recover compensation, and it can proceed regardless of whether, or how, the criminal case is resolved.
Hurt or Lost Someone in a Colorado Car Crash?
Stubborn Attorney helps injured Colorado drivers understand what comes next when a crash gets complicated, including how a criminal case and a civil claim fit together. Consultations are free, and we don't get paid unless we win.
Call (719) 888-95296799 Bismark Rd Ste. C, Colorado Springs, CO 80922 · Available 24/7
Sources: Colorado General Assembly, SB26-072 bill text and fiscal note (leg.colorado.gov); C.R.S. § 18-3-105; The Longmont Leader, "Colorado Upgrades Criminally Negligent Fatal Crashes From Misdemeanor to Felony"; Denver7 and KOAA News5 legislative coverage, April 2026; Bike Colorado Springs, "2026 Colorado Bills Strengthen Protection for Bike Riders," May 2026. This summary is simplified for general audiences and may not capture every provision or exception, consult the official bill text or a licensed Colorado attorney for guidance on a specific situation.