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DWAI vs. DUI in Colorado: What You Need to Know

DWAI vs. DUI in Colorado: What You Need to Know

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Most drivers assume that staying under 0.08% blood alcohol concentration (BAC) keeps them out of legal jeopardy. Colorado law says otherwise. The state’s Driving While Ability Impaired (DWAI) statute kicks in at a BAC just above 0.05%, and it doesn’t require proof that you were significantly impaired. It requires only that your ability to drive was affected to the slightest degree. That’s a low threshold, and it catches people who genuinely believed they were fine to drive.

We’ve been defending these charges in Denver since 1990. In more than 35 years of practice, we’ve seen how quickly a stop that seemed minor turns into something with real consequences for a client’s job, license, and criminal record. Understanding the difference between DWAI and DUI under Colorado law isn’t just a legal exercise. It shapes what charges you face, what penalties apply, and what defense options are available.

Here’s what you actually need to know.

How Colorado Defines Each Charge

Both charges fall under CRS 42-4-1301, Colorado’s primary drunk and impaired driving statute. The distinction between them comes down to the degree of impairment the prosecution must prove.

A DUI conviction requires proof that alcohol or drugs caused substantial incapacity to exercise clear judgment, sufficient physical control, or due care. A BAC of 0.08% or higher triggers what’s called DUI per se, meaning the number itself is treated as evidence of impairment without any additional proof required. A DWAI charge requires only that the driver’s ability was affected to the slightest degree. Under CRS 42-4-1301, a BAC above 0.05% but below 0.08% creates a rebuttable inference of DWAI. The prosecution doesn’t need to prove impairment independently if the number falls in that range, but you can challenge it with contrary evidence.

One detail most people don’t realize: DWAI is a lesser included offense of DUI. If you’re charged with DUI and the jury acquits you on that count, it must still decide the DWAI question. A defendant can walk in charged only with DUI and walk out convicted of DWAI. The two charges aren’t parallel options for prosecutors. They’re nested, with DWAI sitting inside the DUI charge at all times.

What Each Conviction Actually Costs: Penalties Side by Side

The gap between a first-offense DUI and a first-offense DWAI is significant, though neither is trivial. A quick comparison of first-offense penalties illustrates the difference:

  • Jail time: DUI carries 5 days to 1 year; DWAI carries 2 to 180 days
  • Fines: DUI runs $600 to $1,000; DWAI runs $200 to $500
  • Community service: DUI requires 48 to 96 hours; DWAI requires 24 to 48 hours
  • License revocation: DUI triggers a 9-month revocation; DWAI carries no automatic revocation on a first offense
  • DMV points: DUI adds 12 points to your driving record; DWAI adds 8 points

The no-automatic-revocation distinction for a first DWAI is real, but it doesn’t tell the whole story. A BAC of 0.15% or higher triggers the Persistent Drunk Driver (PDD) designation, which mandates a minimum two-year ignition interlock device (IID) requirement and completion of Level II alcohol education, regardless of whether the underlying charge is DUI or DWAI. The PDD designation follows the BAC reading, not the charge.

The long-term math also matters. A fourth DUI or DWAI conviction in Colorado becomes a class 4 felony, and prior DWAI convictions count as prior offenses when courts calculate penalties for later DUI charges. A DWAI today isn’t just a problem today.

Two Clocks Start Running the Moment You’re Arrested

This is the piece most people miss entirely, and it’s the one most likely to cause permanent damage if they don’t act fast.

A DUI or DWAI arrest in Colorado sets two separate legal proceedings in motion at once. The first is the criminal case, handled in Denver at the Lindsey-Flanigan Courthouse at 520 W. Colfax Ave. The second is a Colorado DMV administrative hearing that runs entirely parallel to the criminal case on its own timeline.

Under Colorado’s Express Consent law, every driver on Colorado roads has implicitly consented to chemical testing when lawfully arrested for impaired driving. If you took a breath test, the 7-day window to request a DMV hearing begins at the time of arrest. If blood was drawn, the window opens when you receive those results. Miss that 7-day deadline and your license is automatically revoked on day 8, regardless of what happens in criminal court. An acquittal doesn’t restore a license lost to an administrative default.

Refusing the chemical test doesn’t sidestep the problem. Refusal under the Express Consent law triggers its own automatic license consequences and carries a PDD designation, both handled by the DMV independently of the criminal case. The SR-22 insurance requirement (a high-risk driver certification Colorado requires after certain alcohol-related driving offenses) follows the administrative track, not just the criminal one. The 7-day deadline can’t be extended, and it doesn’t pause while you figure things out.

What a DWAI Conviction Does to Your Record

DWAI is widely mistaken for a minor traffic infraction. It isn’t. A DWAI conviction is a permanent criminal misdemeanor that appears on both your criminal record and your driving record. It doesn’t age off, and it shows up on background checks used by employers, professional licensing boards, and landlords.

Insurance carriers treat DWAI as a high-risk alcohol offense. Premium increases after a conviction are steep, and some carriers will cancel coverage altogether. For commercial driver’s license (CDL) holders, the consequences are immediate and severe: a first DWAI conviction results in disqualification from operating a commercial vehicle, which in many cases ends a career.

Out-of-state license holders convicted of DWAI in Colorado aren’t insulated by distance. Interstate reporting agreements mean Colorado shares conviction data with other states, and home-state licensing and insurance consequences apply on top of whatever Colorado courts impose.

How We Approach the Defense

The defenses available in a DWAI case are the same ones we apply in DUI cases. We start by examining whether law enforcement had reasonable suspicion to initiate the stop in the first place. Without it, everything that follows can be challenged. We then evaluate whether there was probable cause for the arrest, how field sobriety tests were administered, and whether any medical or physiological conditions could explain the officer’s observations.

Chemical test results are subject to challenge as well. Colorado regulates how breath and blood testing must be conducted under 5 CCR 1005-2, and departures from those procedures can render results unreliable or inadmissible. When the test results come into question, the prosecution’s case gets substantially harder to prove on both DUI and DWAI counts.

It’s also worth understanding the plea negotiation dimension. Reducing a DUI charge to DWAI through negotiation is a legitimate and meaningful outcome. That reduction eliminates automatic license revocation, lowers mandatory jail exposure, cuts the fine range roughly in half, and removes four DMV points. For clients with professional licenses or CDLs (or for anyone who can’t afford a license suspension) that reduction can be the difference between keeping and losing their livelihood.

Both charges are serious, and both carry consequences that follow clients well beyond the courtroom. Both are also defensible, particularly when the process starts before the 7-day DMV hearing deadline passes. We’ve handled thousands of DUI and DWAI cases in the Denver metro area with a 90%+ success rate, and our attorneys are available around the clock. If you’ve been arrested and need answers now, call Fife Luneau, P.C. at (720) 408-7130 for a free consultation.