A Colorado DWAI — short for Driving While Ability Impaired — is a criminal charge that applies when alcohol, drugs, or both reduce your ability to drive “to the slightest degree.” It sits below DUI on paper but not by much in practice. A blood alcohol concentration between 0.05% and 0.08% supports a DWAI, and prosecutors can pursue the charge without a chemical test if other evidence of impairment exists.1Justia. Colorado Code 42-4-1301 – Driving Under the Influence – Driving While Impaired – Driving With Excessive Alcoholic Content – Definitions – Penalties A first offense can mean up to 180 days in jail. A fourth becomes a felony. And a DWAI conviction cannot be sealed or expunged, so it stays on your record for life.
What DWAI Means and How It Differs From DUI
The statutory standard for DWAI is deliberately low. You do not need to be visibly drunk, swerving, or failing a sobriety test. If alcohol or drugs reduced your judgment or physical control to any measurable extent while you were driving, that is enough.1Justia. Colorado Code 42-4-1301 – Driving Under the Influence – Driving While Impaired – Driving With Excessive Alcoholic Content – Definitions – Penalties
BAC numbers create legal presumptions that steer how a case plays out at trial. At or below 0.05%, the law presumes you were not impaired. Above 0.05% but below 0.08%, the jury can infer impairment, which is the band where DWAI charges most often land. At 0.08% or higher, the inference shifts to DUI. These are inferences, not fixed rules: a prosecutor can still pursue DWAI with a BAC under 0.05% when other evidence points to impairment, and a defendant above 0.05% can argue they were not actually impaired.
Drug cases work differently. Five nanograms or more of delta-9 THC per milliliter of blood creates a permissible inference of driving under the influence of drugs.1Justia. Colorado Code 42-4-1301 – Driving Under the Influence – Driving While Impaired – Driving With Excessive Alcoholic Content – Definitions – Penalties For every other drug, including prescription medication taken exactly as directed, there is no fixed concentration cutoff. Prosecutors rely on officer observations, Drug Recognition Expert evaluations, and toxicology results to make the case.
How a DWAI Charge Gets Built
An impaired-driving case usually starts with an officer noticing something — a wide turn, a slow reaction at a light, slurred speech after the stop — and layers evidence from there.
Field Sobriety Tests
The standardized battery includes the Horizontal Gaze Nystagmus test, the Walk-and-Turn, and the One-Leg Stand.2National Highway Traffic Safety Administration. DWI Detection and Standardized Field Sobriety Testing Participant Manual Officers watch for specific clues: eye jerking, stepping off the line, using your arms for balance, putting a foot down early.
Field sobriety tests are voluntary in Colorado, and refusing them carries no immediate penalty. The officer can still arrest you based on other observations, and the refusal itself gets noted. The tests are also imperfect. Medical conditions, fatigue, footwear, and uneven pavement all produce false indicators of impairment, and these are routine lines of defense at trial.
Breath and Blood Tests
A preliminary breath test at the roadside helps an officer establish probable cause but is not admissible in court. The evidentiary test that counts happens after arrest on a calibrated machine at a station. A reading between 0.05% and 0.08% supports DWAI; 0.08% or higher points to DUI.
Blood tests are the standard for drug cases and generally more accurate than breath testing. Samples must be drawn by a qualified medical professional and analyzed in a certified lab. Chain of custody, storage, and the gap between the stop and the draw are all common grounds for challenging a blood result, because BAC changes over time.
Express Consent and Refusing a Test
Colorado’s express consent law requires any driver on state roads to submit to chemical testing when an officer has probable cause to believe they committed DUI or DWAI. Drivers 21 and older can choose between a blood and a breath test for alcohol; the officer picks the test type when drugs are suspected, which can mean blood, saliva, or urine.3Justia. Colorado Code 42-4-1301.1 – Expressed Consent for the Taking of Blood, Breath, Urine, or Saliva Sample – Testing – Fund – Rules – Repeal
Refusing triggers automatic license revocation on its own schedule, separate from any conviction: one year for a first refusal, two years for a second, three years for a third or later.4Justia. Colorado Code 42-2-126 – Revocation of License Based on Administrative Determination A refusal also classifies you as a “persistent drunk driver” under Colorado law, which brings mandatory ignition interlock and extended treatment requirements once you try to reinstate.
What a DWAI Conviction Costs
DWAI penalties climb sharply with each prior alcohol- or drug-related driving conviction. Prior DUI, DUI per se, DWAI, and alcohol-related vehicular assault convictions all count toward the offense number, and Colorado uses no lookback period. A DWAI from twenty years ago still counts.
First Offense
A first DWAI is a traffic misdemeanor. Jail runs from two to 180 days, and the court can suspend the two-day minimum if you complete a court-ordered alcohol and drug evaluation and the recommended treatment. Fines fall between $200 and $500 and may be suspended at the court’s discretion. Community service of 24 to 48 hours is mandatory and cannot be suspended. Probation can last up to two years and often includes treatment and monitoring conditions.
A high BAC changes the picture even on a first offense. If your BAC was 0.20% or higher, the minimum jail sentence jumps to ten days and the maximum to one year.5Justia. Colorado Code 42-4-1307 – Penalties for Traffic Offenses Involving Alcohol and Drugs
Second Offense
A second conviction for any combination of DUI or DWAI carries ten consecutive days to one year in jail, fines between $600 and $1,500, and 48 to 120 hours of mandatory community service. The ten-day minimum is consecutive and cannot be split into weekends.6FindLaw. Colorado Code 42-4-1307 – Penalties for Traffic Offenses Involving Alcohol and Drugs Courts also require a Level II alcohol and drug program, which is longer and more expensive than the Level I program used for first offenses.
Third Offense
A third conviction raises the mandatory minimum to 60 consecutive days in jail, with a maximum of one year. Fines and community service ranges match the second-offense levels. The court cannot substitute home detention or electronic monitoring for the 60-day mandatory period, though work release or education may be allowed in limited circumstances.
Fourth Offense and Up
A fourth or subsequent DUI or DWAI is a Class 4 felony. The case moves from county court to district court, and a conviction brings two to six years in state prison instead of county jail, plus three years of mandatory parole. At this level, DWAI and DUI are functionally the same: both count equally toward the felony threshold, and the felony penalties do not care which one triggered it.
What Happens to Your License
License consequences come from two separate tracks: points assessed when you are convicted, and administrative action based on your BAC at the stop. Both can run at the same time.
Points
A DWAI conviction adds eight points to your driving record. For adult drivers, the DMV can suspend a license at 12 or more points in any 12-month period, or 18 or more points in 24 months.7Justia. Colorado Code 42-2-127 – Authority to Suspend License – To Deny License – Type of Conviction – Points One DWAI by itself will not reach those thresholds, but a second moving violation inside the same window can. Drivers under 18 can be suspended for more than five points in 12 months.
The DWAI Versus DUI License Distinction
This is where DWAI often lands differently than people expect. The automatic administrative revocation process applies when a driver’s BAC reaches 0.08% or higher, which puts the case in DUI territory. For those cases, the DMV revokes for nine months on a first violation, one year on a second, and two years on a third or subsequent.4Justia. Colorado Code 42-2-126 – Revocation of License Based on Administrative Determination A first-time DWAI based on a BAC between 0.05% and 0.08% does not trigger that automatic revocation. The practical result is that a DWAI often carries lighter immediate license consequences than a DUI, at least the first time around.
Underage Drivers
Drivers under 21 face a lower threshold. A BAC between 0.02% and 0.05% supports an Underage Drinking and Driving charge, which is separate from DWAI.8Colorado State Patrol. DUI – Don’t Underestimate Impairment A first UDD brings a three-month revocation, a second six months, and a third one year. Above 0.05%, regular DWAI or DUI charges apply with the full adult penalties.
Ignition Interlock and Early Reinstatement
Drivers with multiple DUI or DWAI convictions must hold an interlock-restricted license for at least two years, and up to five years, before an unrestricted license is available again. The device requires a clean breath sample before the vehicle will start. The interlock track also opens a path to earlier driving: drivers revoked for a year or more after a DUI or DWAI can apply for early reinstatement if they accept the interlock and keep SR-22 insurance in place for the longer of three years or the full interlock period.9FindLaw. Colorado Code 42-2-132.5 – Interlock-Restricted License
Consequences That Outlast the Sentence
The courtroom penalties are only part of what a DWAI conviction brings.
A Permanent Record
Unlike many Colorado misdemeanors, a DWAI conviction cannot be sealed or expunged. It stays visible to employers, landlords, and licensing boards indefinitely. It also stays available as a prior offense if you are ever charged again, no matter how much time has passed. Some countries, Canada among them, restrict entry for people with alcohol-related driving convictions, which can affect both business and personal travel.
Employment and Commercial Licenses
Fields like healthcare, transportation, government, and education routinely treat alcohol-related driving convictions as disqualifying on a background check. Commercial driver’s license holders face the sharpest edge: federal rules disqualify a CDL after an alcohol-related driving conviction even when the offense happened in a personal vehicle. A first disqualification runs one year, and a second is a lifetime bar.
Insurance and SR-22
Premiums typically climb after a DWAI. The DMV may also require an SR-22, a certificate your insurer files to confirm you carry at least the state’s minimum liability coverage.10Colorado Department of Revenue – Motor Vehicle. SR-22 and Insurance Information The SR-22 is not a separate policy; it is a monitoring tool. If the underlying coverage lapses, the DMV finds out and your license takes an additional hit. For drivers on an interlock-restricted license, the SR-22 has to stay in place for at least three years or the length of the interlock restriction, whichever is longer.
Deferred Sentencing
Colorado allows deferred sentencing in some DWAI cases, but only with agreement from the defendant, defense counsel, and the district attorney. You plead guilty and the court delays entering the conviction for up to two years on a misdemeanor. During that window you must comply with court conditions, which typically include alcohol education, treatment, community service, and no new offenses.
Complete every condition and the guilty plea is withdrawn, the charge is dismissed with prejudice, and the arrest record becomes eligible for sealing. Violate a condition and the court enters the conviction and sentences you on the original plea. Deferrals are most realistic for first-time offenders without aggravating factors. Prosecutors rarely agree on repeat offenses, high-BAC cases, or cases involving an accident.
When a Lawyer Changes the Outcome
The most expensive mistake with a DWAI is treating it like a traffic ticket. The “ability impaired” label sounds mild, and plenty of people plead guilty just to be done with it. That calculation almost always costs more over time. A defense attorney can check whether the stop itself was lawful, whether the officer administered the field tests correctly, whether the breath machine was calibrated on schedule, and whether the chemical evidence actually supports the charge. Problems in any of those areas can lead to suppression of evidence, a reduced charge, or a dismissal.
Representation becomes especially important for second and later offenses, where mandatory jail is in play and the felony threshold is one conviction away. An attorney can also appear at the DMV administrative hearing, which runs on its own deadline and is separate from the criminal case. Miss the window to request that hearing and the chance to fight the license action is gone before the criminal case has even moved.