Colorado DUI Laws & Penalty Chart – The Definitive Guide

Colorado DUI laws make it a crime to drive a motor vehicle or ride a bike while either:

• under the influence of alcohol and/or drugs or
• with a blood alcohol content (BAC) of 0.08% or greater.

Driving with a BAC of above 0.05% but lower than 0.08% is the lesser Colorado offense of DWAI. Colorado’s criminal sentencing and administrative penalties for DUI, DUI per se, and DWAI become more severe with each successive conviction, as this chart shows (updated for 2026): Contact our criminial defense lawyers in Denver for more information.

Offense	Jail term	Can court suspend jail?	Probation	Fine	Public service	License revocation
1st DUI	5 days – 1 year	Yes, with alcohol/drug evaluation and alcohol education	Up to 2 years	$600 – $1,000	48 – 96 hours	9 months
1st DUI with BAC > .20%	10 days – 1 year	No, but court can grant home detention	Up to 2 years	$600 – $1,000	48 – 96 hours	9 months
1st DWAI	2 days – 180 days	Yes, with alcohol/drug evaluation and alcohol education	Up to 2 years	$200 – $500	24 – 48 hours	none
1st DWAI with BAC > .20%	10 days – 1 year	No, but court can grant home detention	Up to 2 years	$200 – $500	24 – 48 hours	none
2nd DUI/DWAI in 5 years	10 days – 1 year	No	2 – 4 years	$600 – $1,500	48 – 120 hours	1 year
2nd DUI/DWAI after 5 years	10 consecutive days – 1 year	No, but court can grant home detention	2 – 4 years	$600 – $1,500	48 – 120 hours	1 year
3rd DUI/DWAI	60 consecutive days – 1 year	No, but court can grant work release or community corrections	2 – 4 years	$600 – $1,500	48 – 120 hours	2 years

The good news is that the best Colorado DUI attorneys have many ways to challenge both drunk driving arrests and Colorado DMV license suspensions. However, you have just seven days from the time of your arrest (or when your blood test results come back) to request a Colorado DMV hearing. In this article, our Colorado DUI defense lawyers will address the following key topics re. drunk/drugged driving laws:

• 1. DUI Penalties
• 2. DWAI Penalties
• 3. Felony DUI Laws
• 4. Test Refusals
• 5. Underage DUI
• 6. License Suspensions
• Additional Resources

1. DUI Penalties

It is generally a Colorado misdemeanor to drive under the influence of alcohol or to drive under the influence of drugs (DUID). Penalties increase with each successive conviction; it does not matter whether the prior DUI occurred in Colorado or another state.

First DUI

In Colorado, first-offense DUI penalties include five days to one year in jail, a fine of $600 to $1,000 plus court costs, 48 to 96 hours of community service, 12 DMV points on your DMV driving record, and a driver’s license revocation period of nine months. Jail is mandatory if your blood alcohol content (BAC) is 0.20% or greater. Under Colorado DUI laws, you may be eligible for a probationary driver’s license immediately if you install an ignition interlock device (IID). Then you may regain unrestricted driving privileges after four months as long as:

1. you drive with an IID, and
2. your blood alcohol level was below 0.15%, and
3. you never had a BAC of 0.25% or higher.

If your BAC was 0.15% or higher, the IID must remain installed for two years. Note that if your BAC is 0.15% or higher, you are designated a persistent drunk driver (PDD) and sentenced as a repeat DUI offender.

Second DUI

In Colorado, penalties for a second offense conviction of driving under the influence of alcohol can include:

• 10 days to 1 year in jail,
• A fine of $600 to $1,500 plus court costs,
• Driver’s license suspension of up to one year
• 48 to 120 hours of public service,
• Level II Alcohol Education classes,
• Ignition interlock device for two years following license reinstatement, and
• 12 DMV points on your DMV driving record.

If the prior DUI was within the last five years, the 10-day jail sentence must be served all at once. If you are 21 or older, you may be eligible for an IID-restricted license right away. Otherwise, you have to wait one year.

Third DUI

Under Colorado law, a third DUI offense can lead to DUI penalties of:

• 60 days to 1 year in jail,
• A fine of $600 to $1,500 plus court costs,
• Driver’s license suspension of up to two years,
• 48 to 120 hours of community service,
• Level II Alcohol Education classes,
• 90 days of continuous alcohol monitoring if granted probation,
• Ignition interlock device for two years following license reinstatement, and
• 12 DMV points on your DMV driving record.

If you are 21 or older, you may be eligible for an IID-restricted license right away. Otherwise, you have to wait one year.¹

DUI v. DUI Per Se

You face Colorado DUI per se charges just for driving with a BAC of 0.08% or higher, even if you are not impaired and have a high alcohol tolerance. Meanwhile, if you have a BAC of less than 0.08%, you can still face regular DUI charges as long as you are driving impaired to the slightest degree. It is rare for prosecutors to bring both

• DUI per se and
• DUI charges for the same case.

If they do, any sentences will run concurrently. (DUI per se and DUI have identical penalties under Colorado DUI laws.)

Driving Under the Influence of Marijuana

Colorado courts can infer that you are DUID if your blood sample shows at least five nanograms of delta-9-tetrahydrocannabinol per milliliter. So even if you do not seem high and are driving safely, you are automatically breaking the law by having a blood count of 5 ng/100 of THC (marijuana’s active metabolite).² Conversely, you can still be convicted of DUI if your marijuana level is less than 5 ng/100ml if you are displaying indicia of being impaired by drugs (including prescription drugs) or by a combination of drugs and alcohol.

Persistent Drunk Drivers (PPDs)

In Colorado, you are classified as a “persistent drunk driver” (PDD) if either:

• You have been convicted of – or had your driver’s license revoked for – two or more alcohol-related driving violations;
• You get caught driving under restraint (CRS 42-2-138);
• You drive with a BAC of 0.15% (even for a first offense); or
• You refuse to take a chemical test after being arrested

For PDDs to drive again, you must install an IID for at least two years. You must also complete Level II Alcohol Education and Therapy and maintain SR22 insurance (usually for two or three years).³

2. DWAI Penalties

Driving while ability impaired (DWAI) – which typically pertains to driving with a blood alcohol concentration of above 0.05% to less than 0.08% – is a misdemeanor driving offense in Colorado. Potential consequences of a DWAI include:

1st DWAI

• 2 days to 180 days in jail,
• A fine of $200 to $500 plus court costs,
• 24 to 48 hours of community service, and
• 8 DMV points on your DMV driving record.

Jail is mandatory in Colorado if you had a BAC of 0.20% or greater.

2nd DWAI

• 10 days to 1 year in jail (with a minimum 10-day mandatory sentence),
• A fine of $600 to $1,500 plus court costs,
• 1 year license suspension,
• 48 to 120 hours of community service, and
• 8 points on your DMV driving record.

If the prior DUI was within the last five years, the 10-day jail sentence must be served all at once in Colorado.

3rd DWAI

• 60 days to 1 year in jail (with a minimum 10-day mandatory sentence),
• A fine of $600 to $1,500 plus court costs,
• 2 year license suspension,
• 90 days of continuous alcohol monitoring if granted probation,
• 48 to 120 hours of community service, and
• 8 points on your DMV driving record.⁴

3. Felony DUI Laws

Driving under the influence becomes a felony in Colorado if you have at least three past DUI-related offenses, or if someone gets seriously hurt or killed. The penalties for a felony DUI conviction depend on the specific charge.⁵

Felony DUI Charge	Colorado Penalties
Fourth DUI or DWAI	Class 4 Felony: 2 to 6 years Colorado State Prison with 3-year parole and/or $2,000 to $500,000; 90 days of continuous alcohol monitoring if granted probation; and 2-year license revocation If you are 21 or older, you may be eligible for an IID-restricted license right away. Otherwise, you have to wait one year.
Vehicular assault (18-3-205 C.R.S.) a.k.a. DUI causing serious injury	Class 4 felony: 2 to 6 years prison with 3-year parole; and/or $2,000 to $500,000; 1-year minimum license revocation; and 90 days of continuous alcohol monitoring if granted probation
Vehicular homicide (18-3-106 C.R.S.) a.k.a. DUI causing death	Class 3 felony: 4 to 12 years prison with 5-year parole; and/or $3,000 to $750,000; and 1-year minimum license revocation; and 90 days of continuous alcohol monitoring if granted probation

4. Test Refusals

A first-time refusal to take a DUI chemical breath or blood test in Colorado carries a one-year license suspension. A second-time refusal carries a two-year license suspension. A third-time refusal carries a three-year license suspension. However, if you are 21 or older, you may get a restricted license after two months if you install an IID in your vehicles. Otherwise, you have to wait a year. To regain your driving privilege at the end of your license suspension, you must install an ignition interlock device for two years at your own expense. Then if your case goes to trial, your refusal to take the BAC test will be admissible as evidence of guilt. Note that when you operate a motor vehicle in Colorado, you are deemed to give “express consent” to a

• DUI breath test or
• DUI blood test if you are arrested by law enforcement for driving under the influence.⁶

5. Underage DUI

Colorado has a “zero tolerance” policy for underage drinking and driving (UDD). It is illegal for anyone under 21 to drive with a BAC of 0.02% or higher. A first UDD is not a crime: It is a Colorado class A traffic infraction – a civil violation. However, a second or subsequent violation is a class 2 traffic misdemeanor.

1st UDD

• Fine of up to $150,
• Driver’s license suspension of up to 3 months,
• Up to 24 hours of useful community service, and
• 4 points on your Colorado DMV driving record.

2nd UDD

• 10 days to 90 days jail time,
• Driver’s license suspension of up to 6 months,
• Fine of $150 to $300,
• 48 to 120 hours of community service, and
• 4 points on your Colorado DMV driving record.

3rd UDD

• 10 days to 90 days jail time,
• Driver’s license suspension of up to 1 year,
• Fine of $150 to $300,
• 48 to 120 hours of community service, and
• 4 points on your Colorado DMV driving record.

Additional consequences of any Colorado UDD can include:

• An alcohol evaluation or assessment (at your own expense) and
• An alcohol education or treatment program (at your own expense).⁷

Underage drivers with a BAC of 0.08% or higher instead face DUI charges. Underage drivers with a BAC of 0.05% to less than 0.08% instead face DWAI charges.

6. License Suspensions

The only way to avoid a license suspension for violating Colorado DUI laws is to win both the criminal case and the DMV administrative case. Otherwise, you may be able to get an early reinstatement of your driving privileges by driving with an IID. Driving when your license is suspended from a DUI is prosecuted as driving under restraint (DUR). A first offense of “DUR” is a class 2 misdemeanor traffic offense, carrying

• 10 days to 1 year in jail, and
• $150 to $1,000 in fines, and
• 1-year license revocation.

Meanwhile, a DUR with a prior conviction of DUR within the last five years carries:

• 10 days to 2 years of jail time, and
• $500 to $3,000, and
• 4-year license revocation.⁸

See our related article on habitual traffic offenders (HTOs), who lose their license for five years for having three major traffic offenses (including DUIs) in a seven-year period.

Additional Resources

• Colorado DUI Laws – Detailed explanation by Colorado’s Office of Legislative Legal Services.
• The DUI Process – Step-by-step overview by the Colorado DMV.
• Impaired Driving – Safety video by the Colorado Department of Transportation.
• MADD Colorado – Organization devoted to ending DUI, including by presenting victim impact panels.
• Colorado AA – A 12-step program for overcoming alcoholism.

Also see our article, How much does a DUI lawyer cost in Denver?

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