American Driving Academy driver-training cars in Colorado

Colorado Impaired Driving Prevention

Colorado DUI Awareness & Impaired Driving Prevention

Every impaired driving crash is preventable. It’s important to educate new drivers on the signs of impairment and impaired driving to save lives on the road. This resource helps Colorado teens, parents, families and licensed drivers understand BAC, DUI, DWAI, drugged driving, underage impairment and the need to make planning ahead second nature.

American Driving Academy is the largest driving school in Colorado and is recognized by MADD as a driver education partner supporting its mission to end drunk and drugged driving, support the victims of these violent crimes, and prevent underage drinking and other drug use.

Educational resource only. Not legal advice. Not a BAC clearance tool. If you drink or consume impairing substances, plan to leave your car out of it.

Supporting MADD’s Mission

An impaired driving prevention resource for Colorado, created in partnership with MADD

This page was created by American Driving Academy as a public-safety resource in support of MADD’s mission to end drunk and drugged driving, support the victims of these violent crimes, and prevent underage drinking and other drug use.

American Driving Academy is a Colorado driving school recognized by MADD as a driver education partner supporting that mission. Learn more about the mission at MADD Colorado. For parent-specific resources, visit MADD Power of Parents.

The Reason This Matters

The Stories Behind the Mission

Legal consequences are real and statistics are clear. Impaired driving is a major concern in Colorado. Behind these numbers are actual Colorado families left grieving because of an individual’s choice to drive impaired. In this video you will hear from families at a Move With MADD event speaking about the loved ones they lost to drunk drivers, from the founder of MADD Colorado, from a mother whose son was killed in a crash involving an impaired driver, and from a man whose own decision to drive intoxicated caused a crash that killed his niece. These stories are difficult to hear but necessary to know. Prevention matters. Together, we can end impaired driving.

Content note: this video discusses fatal impaired driving crashes and grief.

Read the full video transcript

Full transcript of “Lives Changed Forever: Real Stories of Impaired Driving,” filmed at a Move With MADD event and other locations across Colorado. Speakers are identified where known; the wording has been lightly cleaned for readability.

Kevin Hughes, American Driving Academy: Hi, it’s Kevin. Today we’re in Colorado Springs to do Move With MADD. MADD is a nonprofit organization that stands for Mothers Against Drunk Driving. What they do is try to spread awareness about this issue — not just drunk driving, but driving under the influence of other substances too, such as marijuana. Today this walk is to remember some of the victims across Colorado who have been killed in drunk-driving crashes. Some of their families are here to walk with us and share their story.

Barbara, founder of MADD Colorado: I’m Barbara.

Kevin Hughes: Barbara, Karen told me that you started MADD Colorado.

Barbara: I did — with the help of Jesus. This lady made these signs for us back in 2005. As you’ll notice, there are all ages here. We try to do whatever we can for the families, because whether it’s a baby, a child, a husband, or a wife, we always want to be there for them. That’s what we’re here for. We are 43 years strong, but we still have a lot to do, because too many people still don’t think about it. This year, the State Patrol told me that from January through April we already had about 130 crashes with multiple deaths. We’re trying to get people to stop drinking and driving — we have far too many crashes.

I found out about all of this from my younger brother. When our dad passed away, I thought he had just passed away — my brother was the only one who knew our dad had been killed by a drunk driver in 1977. The kid who killed my dad was 16 and ran a red light. My mom was killed on February 11th, 1982. This is what we do.

We have these signs made so that when officers pick someone up for DUI — that’s my mom right there — they can show them, if they’ve been drinking, that these are real people. The man who killed my mom always worked early, from 5 to about 3, then went right to the bar and drank and drank and drank. I sat in the courtroom, and he got a one-year work release for killing my mom. I’m a strong Christian. I said, “God, there has got to be something else we can do.” He said, “If you will have a good attitude and trust me, what the devil meant for evil, we will turn for good.” So our whole goal for Colorado MADD is a passion for the victims, because they need people who can help them walk through it — no matter their age. Right now we have far too many young kids getting in cars and thinking their friends are fine when their friends have been drinking. If somebody has been drinking, you don’t get in the car. Call your mom, call your dad, call your grandma, call somebody — but don’t get in the car.

Jocelyn’s mother: She was 10 years old when it happened, on September 9th, 2022 — next month is actually her third year. We were having family fun night. We lived in Widefield, so we went to the Red Robin in Broadmoor, and it was only 7 o’clock — not after midnight or anything, just 7 o’clock. We were about 5 minutes from home, at the last light before our house, stopped to turn left, when the drunk driver — going over 80 miles per hour, according to the police report — hit us on the passenger side. Our car spun around and was struck on both sides, but my daughter Jocelyn took the most impact. As soon as it happened, I got out and saw my daughter lying there in her booster seat, just like any child would be. My husband got out too. The driver who hit us had three of his own kids in his car — he was drinking and driving with his children in the car.

All of his kids were fine, including him. They took Jocelyn and my husband away in ambulances, and that’s where they told us her brain had swelled and she was in a coma. They said they could keep her in the coma and see what happened. My husband had both ribs broken, fractured lungs, and neck injuries; he was at Memorial Central, so we were separated. I was with Jocelyn for 9 days, until the doctors told us, “This is it — you have to make the call.” We later found out the driver had run from the scene. He wasn’t arrested until a year later — a year after my daughter passed. Now he’s up for parole in 2027, which tells you there are no strict laws in Colorado. It’s just a slap on the wrist. He had his kids and nothing was done about that; I had my kid, and she was taken from me.

If you’re thinking about drinking, do what’s best. Ask for a ride home. Take a friend with you and have them be the designated driver. It’s all fun and games until somebody’s life is taken — and that is not worth it. My daughter’s life ended when she was 10, and that is not fair at all. We were fortunate that I have my second daughter now; we found out about her around the time of Jocelyn’s first birthday after she passed. It was like Jocelyn’s way of telling us, “Here you go, Mom — you can’t be alone.” Jocelyn was such a nice, caring person. She loved to play jokes on you — pranks, pranks, pranks. She loved K-pop and arts and crafts; I’d bring her a box of tissues and she’d turn it into cute stationery to hold all her notes. She was so caring. You could be mad and she would just say, “Mom, I love you,” and that would make your day.

Trooper Pratt, Colorado State Patrol: Hello, I’m Trooper Pratt with the Colorado State Patrol. I’m here to talk to you about DUIs. Last year we worked over 220 fatal DUI-related crashes — and every one of them could have been prevented. Please be responsible. If you drink, do not drive. If you are drinking, get an Uber or have a sober person take you home. Thank you.

Narrator: We’re finishing up our walk today, and we got to hear stories from people who lost loved ones to drinking and driving. They aren’t the only stories that need to be shared — every one of these memorials represents someone killed or injured in a drunk-driving crash. We’re going to listen to one more story now.

Dominic’s mother: My son Dominic — we had been married 12 years and had a good life. We both felt fulfilled with what we were accomplishing, and then we were suddenly surprised and blessed with, “Hey, you’re going to have a little boy.” It turned our whole universe around. I had my own marketing firm and my husband was a police officer, and we had no idea this is where life would take us. We remodeled our house, changed our jobs, changed everything. The moment I held him in my arms for the first time — any mom knows that changes you. He was a spunky kid who never slept; I think he was 2 before he slept through the night. But he always knew what he wanted and was driven to get it. He was a class clown who loved to make people laugh. And on the soccer field — holy cow. He was a midfielder, and anyone who knows soccer knows the midfield connects the defense and the offense. He was the one making the decisions: “I’ve got this ball — now what am I going to do with it?”

We got through COVID — a sad, trying time for everybody — and were coming out the other side. He had to get his wisdom teeth out, he had soccer tryouts, and we were going on a trip. It was a Thursday night, and he asked, “Mom, can I go out tonight?” We don’t usually go out on Thursday nights, but I looked at the calendar and saw we only had 5 nights of summer left, so I said, “You know what — go out.” He left about 3:20. I walked him out to the car. He told me he loved me and got in. Of course I said, “Be careful, make good choices.” I asked who was driving — all the things we always did. He said, “I love you, Mom,” and backed out. I walked up the driveway. It wasn’t even late enough for the Ring cam or for Life360 to be tracking him. He got in a car at 7:09 with somebody he didn’t know very well, and by 7:13 the kid driving ran a red light and was hit by a semi-truck. He was in that car for 4 minutes. That decision to get in that car — versus any other car, and that spot versus any other spot — was life-changing for all of us. He was 17 years old, and he should have had so much more life ahead of him.

From the time Dominic could understand a conversation, safety was a huge part of his life. His father was a school resource officer and on the SWAT team, so we were always sharing messages about staying safe and making good choices. There could not have been a child who knew more about his own safety than Dominic. Like a lot of kids, he’d roll his eyes every time his parents said, “Make wise choices — who’s driving tonight?” Kids get annoyed that their parents say it, but we have to keep saying it. And everything Dominic knew did not save him from the consequences of getting in the car with the wrong kid. If one of your friends has been drinking anything — or if you have — there is no okay to drive. You cannot drive. One drink is enough to get you a DUI, or something far worse.

This is where Dominic grew up; we’ve lived here since the day he was born. I remember carrying him up these steps and showing him his bedroom. Every year we took pictures right here of his first day of school. After Dominic was killed, we decided to make this a place where he can be honored and celebrated — Dominic’s Memorial Garden. We put in the sidewalk on purpose, so that when his friends want to come see the bench we created in his honor, they don’t have to ring our bell. The community sponsored it — people in Broomfield, Westminster, and Arvada came together for the memorial. When Dominic would leave to go out with friends, I would often find on Life360 that they’d stop right here, gather, and figure out their plans for the night. This bench sits right across from where Dominic parked his car the last time he was in it. He parked it right there, got in another car — I’m not sure whose, and I don’t know that I’ll ever know — and went to hang out with friends.

When I got the call at 9 o’clock that evening, we got in our car and drove the however-many miles to get here, and we got diverted. Driving down 287, we suddenly saw all the lights and sirens, but there was no crash in the intersection. My husband, being a police officer, knew what it meant: if they were diverting traffic a mile ahead, we knew what that was about. We had to take a separate route to the hospital, which brought us down this street — and we saw his car sitting there. We thought, “He’s got to be okay, there’s his car.” We drove right past it on the way to the hospital, where we spent our last 5 hours with Dominic.

I remember coming up to the security guard and saying, “We’re here to see our son — where do we go?” He asked who we were. I said, “We’re the DePalma family.” He said, “Oh — I think he’s still alive.” A nurse said he was on five different medications to support his blood pressure, so for several hours we had hope. It wasn’t until an awkward chaplain walked into the room that we realized we were not there for hoping. At a certain point in the night, we realized we were hoping for a peaceful transition for him instead. This is where all his friends gathered next to his car and built a candlelight memorial — rosaries, candles, flowers, signs, balloons. It makes me so sad. Seventeen-year-olds should be having the time of their lives — going to homecoming and prom, worrying about what outfit to wear, what TikTok to make. They shouldn’t be wondering whether lighting a candle will take a little of the burden off their hearts.

The driver was absolutely fine — I don’t think he had a scratch. The front passenger was mostly okay too. But both of them will carry lifelong mental injuries from the memory of that night. All three in the back were badly hurt. Two survived; one had a 1% chance of survival and somehow pulled through, but he has lifelong physical injuries he struggles with every day. The other ended up with his face shattered and his mouth wired shut; while that’s healing, he’ll carry both physical and emotional injuries for the rest of his life.

Dominic wasn’t even on his way home yet — he was still out early in the night. The sun was still up; it was the golden hour. It’s always important to get home safely, but it’s important to get everywhere safely. At the end of the night, everyone asks, “Do you have a ride? A designated driver?” But if you don’t make it to that point in the night, it doesn’t matter. So every time you get in a car, make sure you are the sober driver, or that the driver is sober — and if that’s not possible, call somebody, or get an Uber, a Lyft, a rideshare. It doesn’t have to be midnight before you start thinking about being safe. I think it’s hard for a teenage mind to truly comprehend the consequences: you drink, you drive, you crash, you take someone’s life. I don’t know that you ever get over it. I actually have a lot of empathy for the driver, because he was 17 and his brain wasn’t developed, and a lot was working against him. But that doesn’t change the fact that now he knows he killed somebody — and not a stranger in another vehicle. He killed someone he knew. I think that’s about as bad as a DUI gets, and he will carry it forever.

Narrator: Next we’ll meet Ken, a man who was drinking and driving one day and lost his niece in a crash.

Ken Hayes: My name is Ken Hayes. I was convicted of DUI vehicular homicide.

Interviewer: Ken, tell me a little about the relationship you had with your niece.

Ken Hayes: Oh man, it was wonderful. I’d like to think I was her favorite uncle. We did everything together — we went skiing, we played games. She was in middle school, about to go to high school. She played a lot of sports, she was a musician who could play several instruments, and we were very close. We talked all the time.

Interviewer: What was life like for you before the crash?

Ken Hayes: Life was carefree. I treated this world like an ashtray — I did what I wanted, how I wanted, and never felt I’d face any of the consequences you hear about. I never thought I’d be a victim, and I certainly never thought I would hurt somebody so innocent. Ashley’s parents were out of town, and at the time I had a fancy car. The night of the crash, she kept asking to drive it. Knowing I was drunk, I kept telling her no. But several drinks into the night, I gave in and told her she could drive. Ashley, her friend, her friend’s mother, and I got in the car and headed out east, where there wasn’t much traffic. I figured she could drive it — and again, I was drunk, so I wasn’t making wise decisions. I don’t recall a lot about that night, but on the way back in — I’m not sure if I was speeding or swerving; the only thing I’m sure of is that I was drunk — the car went off the road. It started to roll, and Ashley was ejected. I was ejected too. The other two passengers stayed in their seat belts.

That night I remember crawling through tall yellow grass, screaming, “Ashley! Ashley! Where are you? Please answer me!” I came to with doctors and nurses standing over me, telling me everything that was wrong — a head injury, my shoulders, internal injuries. The doctor’s voice started to fade, because all I could think about was Ashley. When he left, I tried to get up, and the nurse told me, “You need to stay down, you’re in too bad a shape.” I told her, “I have to go talk to Ashley. I have to tell her how much I love her, make sure she’s okay, and apologize for putting her through a night like that.” The nurse said, “She’s at another hospital,” and I thought, “Thank God.” In and out of consciousness, I came to with my sister Vicki — Ashley’s aunt — in the room, my brother Steve, and Ashley’s mother, Joyce. As I came around, Joyce got up, walked over, kissed my cheek, and whispered in my ear, “Ashley’s gone.” I started yelling for my sister: “No, Vicki, please wake me up from this nightmare. This isn’t supposed to happen to somebody like me — anybody else in the world, but not me. This isn’t my reality.” And here I am today, still in that same nightmare. All over a drink — something that could have been prevented if I’d taken a little more responsibility and not chosen to drive.

John and Joyce are true angels. John is my brother, and Joyce was his wife. If it weren’t for them, their caring, and their belief in God, I probably wouldn’t be here. Out of what I can only imagine was unbearable anger toward me, they found the strength to help me want to survive this and continue my life, and they brought me back from the brink of self-destruction. When I was released from the hospital, I went to John and Joyce’s house. John is Ashley’s father. Joyce greeted me at the door, kissed my cheek, and told me to have a seat. I could hear John in another room saying, “Let me just pull it together before I go out there.” Looking back, I realize he was gathering the strength to talk to the man who killed his daughter. As I sat there, all I could think was that he was going to come out and beat me, choke me, shoot me, stab me — and I was okay with any of it. Whatever it took for him to feel better. He came out, looked me in the eyes, and said, “Ken, I know you loved Ashley, and she loved you.” Then he turned and started to walk away. I stood up: “John, can I be a pallbearer at her service?” And I remember him running through his own house — “Joyce, Joyce, he wants to be a pallbearer.”

There I was, in this huge church as an honorary pallbearer, and the church was filled — family members, her cousins, her classmates, her teachers, strangers. I watched every single one of them walk past Ashley. Some time after that, John called me and said, “Ken, there’s a warrant out for your arrest.” I said, “All right, John, I’ll turn myself in in the morning.” He said, “No, Ken, we’re going to do this tonight.” I said okay, I’d meet him at my house. He said, “No, we’re going to meet at Mom’s house.” I felt doubtful about why he wanted to meet at our mom’s, but during my time in jail I figured it out: he knew she was about to lose another one of her kids, and he wanted us to spend a little more time together. I don’t remember much of the conversation at my mother’s house — we didn’t share many words — but I remember John walking through the door. I don’t think he said anything to her. He walked straight over to me and said, “Hey man, are you ready to pay for what you did?” I said, “Yes.”

I left my mother’s house with my brother and we started driving. He parked a distance from the courthouse and we walked. He was ahead of me, and somehow I found the courage to stop him. “Hey, John — how come you’re not taking any of your anger out on me?” In my mind, I thought maybe if he hurt me, he’d feel better. He looked me in the eyes again and said, “Ken, there’s nothing I can do to you that you’re not going to do to yourself.” Then he turned and kept walking. I remember going through that first set of doors, up to the bulletproof glass, where he did all the talking and I stood back. Eventually an officer came around the glass and asked me to put my arms behind my back. I walked to my cell, and that’s where I started my new life.

Interviewer: Standing in your shoes now, knowing what you know, what would you tell someone who’s thinking about drinking and driving?

Ken Hayes: Absolutely do not do it. Do not do it. There are plenty of options out there to take care of yourself and other people. This is something I have to live with for the rest of my life. I don’t know if you’ve ever thought about killing somebody, but it’s overwhelming — you can’t recover from it. I killed a 14-year-old. So let me go through this for you: find those options, talk to somebody, take the bus, use a designated driver. Anything but getting behind that wheel. You’re talking about an extra $50 for the good time — or $18,000 and a mindset you can never recover from. On paper, to this day, when I try to get a job, I’m a felon. I carry the record of a vehicular homicide offender. There are a lot of things I cannot do.

Narrator: We’ve heard from mothers who lost their children to drinking and driving. We’ve met Ken, who lost a loved one because of it. So please — don’t drive under the influence.

Colorado Impaired Driving by the Numbers

Impaired Driving in Colorado Is Not Rare. It Is Preventable.

The Colorado Department of Transportation reports that about 1 of every 3 traffic deaths in Colorado involves an impaired driver. Behind every number is a person, a family, and a decision that changed everything.

1 in 3
Colorado traffic deaths involve an impaired driver.
236
DUI-related traffic fatalities in Colorado (2025).
582
Suspected-impaired crashes with at least one serious bodily injury (2024).
16,665
DUI cases filed in Colorado (2025).
Preventable
Impaired driving is entirely preventable.

Sources: Colorado Department of Transportation, the Colorado Task Force on Drunk and Impaired Driving (2025 Annual Report), CDOT Fatal Crash Data, Colorado State Patrol, Colorado Department of Revenue, and NHTSA. Figures reflect CDOT’s most recent reporting.

Know the Law

Colorado DUI, DWAI, and Underage Substance Consumption

These are only the legal limits — impairment can begin right away. Impaired driving is a serious crime in Colorado, where the thresholds are lower than many people assume and underage drinking is illegal on its own — with or without a car. Impairment is not limited to alcohol: a wide range of substances on the market — plant-derived ones like kratom and kava, impairing medications, and synthetic compounds — can affect a person’s ability to drive safely. Here is what the law actually says.

A police breathalyzer device used to measure blood alcohol concentration during a Colorado DUI stop
DUIDUI in Colorado
0.08%BAC limit
(alcohol)

Driving while substantially incapable of operating a vehicle safely — from alcohol and/or drugs.

What this means

Colorado State Patrol lists the alcohol limit for DUI as a BAC of 0.08%. Colorado also recognizes “DUI per se,” which means a BAC of 0.08% or higher is enough for a DUI on its own — prosecutors do not have to separately prove you were impaired. “Per se” is not a separate or less harsh charge; it is the same DUI, just proven by the BAC number alone.

DWAIDWAI in Colorado
0.05%BAC limit
(alcohol)

Impaired to the slightest degree — a lower bar than most people expect.

What this means

Driving While Ability Impaired means alcohol and/or drugs affect a person even to the slightest degree, making them less capable of driving safely than they would be sober. The 0.05% figure is for alcohol alone.

Under 21Underage Drinking & Driving
0.02%Underage
BAC limit

Consequences kick in far below the adult DUI limit.

What this means

For drivers under 21, a BAC of 0.02% to 0.05% brings an Underage Drinking and Driving (UDD) charge — consequences that start far below the adult limit. Above 0.05%, underage drivers face the same DWAI and DUI charges as everyone else.

Express ConsentExpress Consent Law
Driving = Consent

Getting behind the wheel already counts as agreeing to a chemical test.

What this means

Colorado’s Express Consent Law requires a driver to take a chemical test when an officer has reasonable grounds to believe the person is impaired by alcohol, drugs, or both. Refusing can lead to license revocation and other consequences.

Underage DrinkingUnderage Drinking Itself Is Illegal — No Driving Required

In Colorado, anyone under 21 may not possess or consume alcohol at all — even when no car is ever involved.

Read the full rule & a real Colorado case

Underage possession is a strict-liability offense: a first Minor in Possession (MIP) can bring a fine, community service, and an alcohol education program — and it can revoke a teen’s driver’s license for three months (unless they complete an approved alcohol class), even when no one was driving. Penalties increase with repeat offenses, and it is also illegal for adults to provide alcohol to anyone under 21 — a choice that can carry devastating consequences, as in the 2022 Boulder prom-night crash that killed two people, after which nine people — including five parents — were indicted for facilitating the underage drinking beforehand. Likewise, Colorado prohibits marijuana possession by anyone under 21, and impairment from any substance — not only alcohol — can support a DUI or DWAI charge.

A BAC below legal limits does not mean someone is safe to drive.

NHTSA explains that even small amounts of alcohol can affect the brain and the ability to drive, and impairment can begin well before a person feels “drunk.”

What’s at Stake

Colorado DUI and DWAI Penalties: From First Offense to Vehicular Homicide

Colorado treats impaired driving as a serious crime, and the consequences climb sharply — from a first DWAI all the way to killing or injuring another person. Every outcome below is avoidable with one decision: a sober ride. This is general educational information under Colorado law, not legal advice.

Tap any offense below to see how the consequences climb — try it

DWAI — First Offense

Misdemeanor

Jail

2–180 days

Fine

$200–$500

License

No revocation (8 points)

Interlock

Driving While Ability Impaired is a misdemeanor, but it still carries jail exposure, fines, 8 license points, and 24 to 48 hours of public service — and it stays on your record.

Every DUI and DWAI conviction also brings mandatory alcohol education and therapy, probation, court costs, and costly SR-22 insurance. A DUI adds 12 points to your license and a DWAI adds 8. Vehicular assault and vehicular homicide are felonies, even on a first offense.

Sources: Colorado General Assembly, Office of Legislative Legal Services — Colorado Drunk Driving Laws: Colorado Law Summary (DUI and DWAI criminal penalties, C.R.S. §42-4-1307) and the official Colorado Revised Statutes (vehicular assault, §18-3-205; vehicular homicide, §18-3-106). Full section text is also mirrored at Justia (§18-3-205, §18-3-106). Educational information only, not legal advice.

High-BAC & Test Refusal

A BAC of 0.15 or higher makes you a “persistent drunk driver” — even on a first offense

That triggers a mandatory ignition interlock for at least two years, Level II alcohol education, and SR-22 insurance.

0.180

Average BAC in Colorado DUI cases that ended in a guilty finding — more than twice the 0.08 DUI level and above the 0.15 persistent drunk driver threshold.

Refusing the test does not help. Under Colorado’s Express Consent law, driving already counts as consent to a breath or blood test. Refusing brings an automatic license revocation — one year for a first refusal, two for a second, three for a third — and also designates you a persistent drunk driver.

New Colorado Law · Effective June 1, 2027

The interlock requirement is expanding to first-time offenders

Governor Jared Polis signed House Bill 26-1242 on May 28, 2026, moving Colorado toward a near-universal ignition interlock system rather than reserving the device mainly for repeat or high-BAC drivers.

  • First-time offenders included. They must hold an interlock-restricted license while suspended and for nine months after reinstatement.
  • No more waiting. Removes the mandatory two-month suspension for drivers who install an interlock right away.
  • Help with cost. Sets device financial-assistance eligibility at 150% of the federal poverty level.
Takes effect June 1, 2027

Safe, Sober Driving Starts With Driver Education

American Driving Academy teaches Colorado drivers to recognize and prevent impairment — in every course, online or in person.

Featured Interactive Tool

Colorado Safe Ride Simulator

See how BAC can change — and how the decision changes when driving comes off the table.

This is not a “Can I drive?” calculator and never gives a safe-to-drive result. Built for Colorado drivers, parents, passengers, and teens, the Colorado Safe Ride Simulator walks through realistic Colorado nights using an educational BAC estimate based on biological sex, body weight, number of drinks, and the Widmark formula.

The tool shows how that estimate may change over time, compares it with Colorado DUI and DWAI risk points, answers common “sober up faster” myths, and gives scenario-specific options for getting home without anyone driving impaired. A BAC estimate is never a permission slip to drive — it is here to help users understand the risk and choose a safer way home.

Private by design. Your selections update the simulator in your browser. We do not ask for your name, phone number, email, exact address, or personal story. We may record limited category-level analytics, such as general BAC range, scenario type, myth clicked, or decision path chosen, but we do not store personal details, exact free-text responses, or anything that identifies you through this simulator.

Set the scene

Part 1 of 4

Where are you tonight?

Educational sources used in this tool: Colorado Department of Transportation, Colorado State Patrol, NHTSA, Colorado DMV / Department of Revenue, and MADD.

How Alcohol Affects Driving

Alcohol Affects Driving Before Many People Feel “Drunk”

NHTSA documents measurable effects on driving at every BAC level — starting well below the 0.08 DUI limit.

A visibly impaired female driver behind the wheel, struggling to focus on the road
Vision, judgment, and reaction time all decline before a driver feels “drunk” — which is exactly why impairment is so dangerous.
  1. BAC0.02

    Decline in visual functions and a decline in the ability to perform two tasks at the same time (divided attention).

  2. BAC0.05

    Reduced coordination, reduced ability to steer, and reduced response to emergency driving situations.

  3. BAC0.08

    Poor muscle coordination, impaired judgment, reduced information processing, and impaired perception.

  4. BAC0.10

    Reduced ability to maintain lane position and to brake appropriately.

  5. BAC0.15

    Substantial impairment in vehicle control, attention to the driving task, and necessary visual and auditory processing.

A driver does not have to feel drunk to be unsafe. NHTSA notes it is difficult to assess your own BAC or impairment, and that failing to recognize impairment is often a symptom of impairment.

Not Just Alcohol

Drugged Driving and Mixed-Substance Impairment

In Colorado, impaired driving is not only about alcohol. DUI and DWAI both apply to drugs — including cannabis, prescription medications, and other substances — alone or combined with alcohol.

The Four Substances Most Involved in Drugged Driving

Besides alcohol, these are the drug categories that turn up most often in impaired drivers. Tap a card to see why each one makes driving dangerous.

Prevalence figures: NHTSA — Drug-Impaired Driving and NHTSA’s report on alcohol and drug prevalence among seriously or fatally injured road users. Colorado cannabis law: C.R.S. §42-4-1301. Educational information only, not medical or legal advice.

The safest rule is simple: if you have used any impairing substance — legal, prescribed, or not — plan a sober ride. Impairment is impairment, whatever the source.

Interactive · Make a Plan

Before the Night: Make Your Safe Ride Plan

The safest decision is the one made before impairment ever enters the picture. Fill this in, then text it to yourself or screenshot it. Nothing here is saved or sent — it stays on your device.

Your Safe Ride Plan

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Colorado Driver Education · In Support of MADD’s Mission to End Impaired Driving

For Families

Parent-Teen Safe Driving Agreement

The best time to talk about impaired driving is before a teen is ever offered a ride by someone unsafe. This agreement turns that talk into a shared commitment.

A teen and a parent signing the safe driving agreement together at a table A smiling teen leaning out of a car window holding up their car keys
  • I will never drive after drinking, using cannabis, misusing medication, or using any impairing substance.
  • I will never ride with a driver who may be impaired.
  • I can call my parent, guardian, or trusted adult for a safe ride — and the first conversation will be about getting home safely, not punishment.
  • I will speak up when a friend is about to drive impaired.
  • I understand that a license is not just permission to drive. It is a responsibility to protect passengers, other drivers, pedestrians, and families.
Teen signature
Date
Parent or guardian signature
Date

In the Moment

What To Do When the Unsafe Choice Is Right in Front of You

NHTSA recommends planning a safe way home before drinking, designating a truly sober driver, and using a taxi, rideshare, sober friend, family member, or public transportation. Here is what that looks like in real moments.

“My friend says they’re fine to drive.”

Say

“I’m not getting in the car. Let’s call a ride.” Feeling “fine” is not a measure of impairment.

“I already drove to the party.”

Do

Leave the car. Get a sober ride, and come back for it tomorrow. A short trip back is a minor hassle compared with a crash, a DUI, or worse.

“My designated driver drank too.”

Remember

A designated driver must be truly sober — not “less impaired” than everyone else. Switch to a backup ride.

“Someone is about to drive impaired.”

Act

Take the keys only if it is safe, call another ride, or ask another adult for help. If there is immediate danger on the road, contact law enforcement.

What To Say When Someone Pressures You to Drink or Use

You never owe anyone an explanation. Short and confident works best — pick whatever feels natural, and repeat it if you have to.

Keep it simple

  • “No thanks, I’m good.”
  • “Not tonight.”
  • “I’m all set.”
  • “It’s just not my thing.”

Give a reason

  • “I’m driving tonight.”
  • “I’ve got an early morning.”
  • “It doesn’t mix with my meds.”
  • “I don’t like how it makes me feel.”

If they keep pushing

  • “I already said no.”
  • “Asking again won’t change it.”
  • “Grab me a water instead.”
  • “I’m gonna head out.”

You Are Not Alone

Help and Support After an Impaired Driving Crash

Impaired driving can change a life in an instant. If you or someone you love has been injured or killed by a drunk or drugged driver, free and confidential help is available — you do not have to face it alone.

MADD Victim Help Line

1-877-MADD-HELP

(1-877-623-3435) · Available 24/7, free and confidential. Trained advocates offer emotional support, resources, and help navigating the criminal and civil justice systems.

In an Emergency

911

If a driver may be impaired and on the road, or someone is in immediate danger, call 911 right away.

Learn more about victim support and MADD’s mission to end drunk and drugged driving at MADD Colorado and through MADD’s Power of Parents program. You can also learn more about Do It for Dominic D, the Colorado nonprofit Dominic’s family founded in his memory to help teens and young adults make healthy choices over dangerous ones.

Colorado DUI & Impaired Driving: Frequently Asked Questions

What is the legal BAC limit for DUI in Colorado?

Colorado State Patrol lists the alcohol BAC limit for DUI as 0.08%. But a BAC number is not the only issue. A driver can be impaired by alcohol, drugs, or both, and the safest choice after drinking or using impairing substances is not to drive.

What is DWAI in Colorado?

DWAI means Driving While Ability Impaired. In Colorado, DWAI can apply when alcohol and/or drugs affect a person to the slightest degree, so they are less able than normal to safely drive. Colorado State Patrol lists the alcohol-alone BAC limit for DWAI as 0.05%.

Can I be impaired below 0.08?

Yes. A BAC below 0.08 does not mean someone is safe to drive. Colorado recognizes DWAI at lower BAC levels, and alcohol can affect judgment, reaction time, attention, and coordination before a person feels drunk.

How fast does BAC go down?

NHTSA training materials state that after BAC reaches its peak, the average person’s BAC drops by about 0.015 per hour — but the rate varies from person to person, and even from time to time for the same person. There is no way to rush it.

Does coffee, a cold shower, or exercise sober someone up faster?

No. Coffee, a cold shower, or exercise might make someone feel more awake, but feeling awake is not the same as being unimpaired. Only time lowers BAC, and the safe choice is not to drive after drinking.

What affects BAC?

NHTSA lists the number of drinks, how fast a person drinks, biological sex and body composition, body weight, and food in the stomach as factors that affect how quickly BAC rises. Medications and drugs can also increase impairment.

Do medications or drugs matter if my BAC is low?

Yes. NHTSA states that medications or drugs may not change BAC, but drinking while taking certain medications or using drugs can make a person more impaired and affect driving-related tasks. In Colorado, drug impairment can support a DUI or DWAI charge.

What should I do if I might be impaired?

Do not drive. Call someone sober, use a rideshare, taxi, transit, a family member, or a trusted adult, or stay where you are. Your car does not need to get home tonight. You do.

What are the penalties for a first DUI in Colorado?

A first DUI in Colorado can bring 5 days to 1 year in jail, a $600 to $1,000 fine, a 9-month license revocation, 12 license points, mandatory alcohol education, and 48 to 96 hours of public service. A BAC of 0.15 or higher adds a mandatory ignition interlock for at least two years. This is general educational information, not legal advice.

Is a DUI a felony in Colorado?

A first, second, or third DUI is usually a misdemeanor, but a fourth or subsequent DUI is a Class 4 felony in Colorado, punishable by 2 to 6 years in prison. A DUI that causes serious bodily injury or death can also be charged as a felony. This is general educational information, not legal advice.

Know the Words

Colorado DUI Glossary

Plain-language definitions of the impaired driving terms used on this page. Educational only, not legal advice.

Show the 12 terms and definitions
DUI (Driving Under the Influence)
Driving under the influence of alcohol, drugs, or both to a degree that makes a driver substantially incapable of safely operating a vehicle. In Colorado, the alcohol DUI threshold is a BAC of 0.08% or higher.
DWAI (Driving While Ability Impaired)
A Colorado offense that applies when alcohol and/or drugs affect a person even to the slightest degree, making them less capable of driving safely than they would be sober. The alcohol-alone DWAI level is a BAC of 0.05%.
DUI per se
A DUI based on a measured BAC of 0.08% or more at the time of driving, or within two hours after, regardless of how the person appeared to be driving.
BAC (Blood Alcohol Concentration)
The amount of alcohol in a person’s bloodstream, shown as a percentage. It reflects impairment risk, not safety — no BAC reading proves a person is unimpaired, and even 0.000 is not a clearance to drive after using other impairing substances.
Express Consent
Colorado’s law that, by driving on state roads, a person agrees to take a breath or blood test if lawfully arrested for impaired driving. Refusing triggers an automatic driver’s license revocation.
Underage drinking and driving
For drivers under 21, Colorado sets a much lower limit — a BAC of 0.02% to 0.05% can bring an Underage Drinking and Driving (UDD) charge. Underage drinking is also illegal on its own, with no driving required.
Drugged driving
Driving while impaired by any drug, including marijuana, prescription medication, or illegal substances. Drug impairment can support a DUI or DWAI charge in Colorado.
Polydrug impairment
Impairment from combining substances — for example alcohol with marijuana, or alcohol with medication. Mixing substances can multiply impairment beyond what either would cause alone.
Sober ride
Any way home that does not put an impaired person behind the wheel: a sober driver, rideshare, taxi, transit, a friend or family member, or simply staying where you are.
Impaired driving crash
A crash in which a driver was affected by alcohol and/or drugs. Safety organizations say “crash,” not “accident,” because these events are predictable and preventable.
Ignition interlock
A breath-test device connected to a vehicle’s ignition that stops the engine from starting if it detects alcohol. Colorado requires an interlock after certain DUI convictions, and for at least two years when BAC is 0.15% or higher.
Persistent drunk driver (PDD)
A Colorado designation for higher-risk offenders — including a BAC of 0.15% or higher, refusing a chemical test, or repeat offenses. A PDD faces extended ignition-interlock and alcohol-education requirements.

About This Resource

Written by
American Driving Academy Driver Education Team (with the help of MADD)
Reviewed by
Kevin Hughes, Owner, American Driving Academy
Mission collaboration
Created in support of MADD’s mission to end drunk and drugged driving. This recognition does not mean MADD endorses American Driving Academy’s products or services.
Last reviewed
July 2026
Sources
Colorado Department of Transportation, Colorado State Patrol, NHTSA, Colorado DMV, and MADD

Sources & Disclaimer

This resource draws on public information from:

This page is for education and prevention only. It is not legal advice, not medical advice, and not a tool for deciding whether anyone can drive. Laws and guidance can change. For legal questions, consult a qualified attorney. For emergencies, call 911.

Built Into the Course

Impaired Driving Prevention Is Part of Driver’s Ed — In Person and Online

However a student learns, impaired driving education is built into American Driving Academy’s 30-hour course. The format changes; the focus on safe, sober driving does not.

In-Person Classes
A driver's ed student wearing impairment-simulation goggles during an in-person American Driving Academy class Students using drunk-driving simulation goggles to experience impaired vision and balance in an American Driving Academy classroom

Feel the Impairment Firsthand

In our in-person classes, students wear impairment-simulation goggles that mimic how alcohol and drugs distort vision, depth perception, balance, and reaction time. Experiencing that disorientation in a safe, controlled setting makes the danger real in a way a statistic never can.

Find In-Person Classes
Online Course
A screenshot of American Driving Academy's online driver's ed course showing the multiple sections in its driving-under-the-influence module

A Dedicated Impaired Driving Module

The online 30-hour course devotes a full module to driving under the influence — multiple sections covering Colorado DUI and DWAI law, how alcohol and drugs affect the body and brain, and the real consequences of impaired driving, so students learn the same lessons at their own pace.

Online Course Packages

Start Driving For Teens

Step 1: Pass 30-Hour Class

If under the age of 16, you need to first complete a driver's ed course. In-person and online options are available.

Step 2: Pass Permit Test

This 25 multiple-choice test is offered at many of our locations.

Step 3: Go to the DMV

After passing the course and the permit test, you will need to go to the DMV to get your driving permit. To make a DMV appointment…

Step 4: Take Driving Lessons

If you are under 16.5 years of age, you are required to take six hours of driving lessons before getting your driver's license. Learn to drive with our state-certified, friendly, and patient instructors.

Step 5: Pass Your Driving Test

After holding your permit for one full year, it is time to take your driver's license test.

Start Driving For Adults

Step 1: Pass Written Test

You need to pass this test to get your permit. It is 25 multiple choice questions. We offer this test at many of our locations.

Step 2: Go to the DMV

After passing the permit test, you will need to go to the DMV to get your driving permit. To make a DMV appointment…

Step 3: Take Driving Lessons (If Needed)

If you are new to Colorado or you don’t have driving experience, we offer driving lessons 7 days a week. These are 2-hour lessons with state-certified, patient, and friendly instructors.

Step 4: Pass Your Driving Test

You are required to pass the driver's license test in order to get your driver's license. After passing, you may be eligible to get your license that same day without even having to visit the DMV.