A second DUI in Colorado carries a mandatory minimum of 10 consecutive days in jail, fines between $600 and $1,500, at least two years of probation, and a license revocation of one to two years depending on whether you took the chemical test. Two things are happening at once: the DMV is moving against your license on its own track, and the criminal case is working through court on another. Colorado uses a lifetime lookback, so a prior DUI or DWAI from any point in your past counts, even if it happened in another state decades ago.
The DMV Clock Started at Arrest
Under Colorado’s Express Consent law, driving on any road in the state means you have already agreed to a chemical test if an officer has probable cause to believe you are impaired.1Justia. Colorado Code 42-4-1301.1 – Expressed Consent for the Taking of Blood, Breath, Urine, or Saliva Sample Failing a test with a BAC of 0.08% or higher, or refusing one, triggers an administrative revocation that has nothing to do with what a judge later decides.
You have seven days to request a hearing. If you took a breath test or refused, the officer handed you the notice of revocation at arrest and the clock started then. If you took a blood test, the DMV mails the notice after the lab results come back, and your seven days run from when you receive it.2Colorado Department of Revenue. Express Consent Cases Procedures Miss the deadline and you lose any chance to contest the revocation.3Department of Revenue – Motor Vehicle. Alcohol DUI
For a second offense, the revocation is one year if you failed the test and two years if you refused it.4Justia. Colorado Code 42-2-126 – Revocation of License Based on Administrative Determination These lengths apply whether or not you are ultimately convicted in criminal court.
Jail, Fines, Probation, and Community Service
A second DUI is still a misdemeanor, but the mandatory minimums jump hard from a first offense. Under Colorado law, a conviction requires:
- A minimum of 10 consecutive days in jail, up to a year maximum. You cannot earn good-time credit or trusty-prisoner status during those first 10 days.
- A fine of $600 to $1,500, which the court has discretion to suspend.
- Between 48 and 120 hours of community service. The court cannot waive the minimum.
- At least two years of probation, starting immediately, with a one-year suspended jail sentence hanging over the entire probation period.
That suspended year matters. Any probation violation gives the court the option to impose the full 12 months. Probation conditions include monitored sobriety through random breath or urine testing, with frequency ramping up after a missed test or diluted sample. Higher-risk cases sometimes involve continuous monitoring through a SCRAM ankle bracelet.
What It Actually Costs
The fine is the smallest piece. Colorado layers on mandatory surcharges and fees that push the total well past the fine itself. Based on the Colorado Judicial Branch’s published schedule, a second DUI typically brings:
- Probation supervision at $50 per month for the duration of your probation term
- Alcohol and drug evaluation: $200
- Offender identification: $128
- Law Enforcement Assistance Fund: $90
- Victim’s assistance: at least $78, or 37% of the fine, whichever is greater
- Victim’s compensation: $33
- Brain injury surcharge: $25
- Persistent Drunk Driver fee: $30
Two years of probation fees alone come to $1,200. Add the base fine and the surcharges and court-related costs land somewhere between $2,500 and $4,000. That figure does not include the ignition interlock device, SR-22 insurance, or treatment fees.
Getting Back on the Road
A second alcohol-related violation triggers Colorado’s Persistent Drunk Driver designation, which brings its own reinstatement requirements on top of the standard revocation.7Justia. Colorado Code 42-1-102 – Definitions You do not necessarily have to wait out the full revocation before driving again. Colorado’s ignition interlock program allows early reinstatement.
If the revocation is from a failed test or a DUI conviction, you can apply for early reinstatement on the first day the revocation takes effect. If it is for a refusal, you have to wait two months. You must be a Colorado resident and at least 21 at the time of the violation.8Department of Revenue – Motor Vehicle. Early Reinstatement (Interlock)
The device requires a clean breath sample to start the car and prompts random retests while driving. For a second DUI, expect to keep it for at least two years. Failed or missed tests are reported to both the court and the DMV. Monthly lease and monitoring fees generally run over $100.
You also need SR-22 insurance before reinstatement. It is a certificate your insurer files with the DMV confirming state-required liability coverage, not a separate policy. If the insurer drops it, they notify the DMV and your license goes back into revocation.9Department of Revenue – Motor Vehicle. SR-22 and Insurance Information Plan on maintaining it for at least two years. The filing fee is small; the underlying high-risk premium after a second DUI can climb by several hundred percent over standard rates.
If you hold a license from another state, Colorado shares the conviction and license action through the Driver License Compact. Your home state treats the offense as if it happened at home and applies its own penalties.10The Council of State Governments. Driver License Compact
Mandatory Evaluation and Treatment
Every second DUI conviction requires a professional alcohol and drug evaluation, which costs $200. The evaluator places you into a Level II program with tracks of escalating intensity based on your BAC and prior record.11Department of Revenue – Motor Vehicle. Alcohol and Drug Education Treatment Every track starts with 24 hours of classroom education over 12 weeks, followed by therapy hours that vary by track. A second offense with a BAC of 0.15 or higher, or a refusal, pushes you toward the longer end, roughly 110 combined hours across 13 months.
The programs are not free, and skipping sessions or failing to complete counts as a probation violation, which puts that suspended year of jail back on the table. The DMV independently requires proof of completion before reinstating your license, so an unfinished program blocks both sides of the case at once.5Justia. Colorado Code 42-4-1307 – Penalties for Alcohol and Drug-Related Driving Offenses
Job Consequences That Reach Beyond Colorado
Commercial Drivers
A second DUI conviction of any kind results in a lifetime CDL disqualification under federal law. The Secretary of Transportation has authority to reduce that ban to no less than 10 years, but reinstatement is not guaranteed and depends on meeting specific conditions.12GovInfo. 49 USC 31310 – Disqualifications For anyone whose livelihood depends on a CDL, a second DUI ends that career for at least a decade.
Pilots
FAA rules require pilots to report any DUI conviction or alcohol-related administrative action, including license revocation, in writing within 60 days. The report has to include the type of violation, the date, and the state that holds the record.13eCFR. 14 CFR 61.15 – Offenses Involving Alcohol or Drugs Failure to report risks suspension of both the pilot and medical certificates. A second offense also triggers an FAA-required evaluation by a Substance Abuse Professional at the pilot’s expense.
Security Clearance Holders
Federal clearance guidelines (SEAD 4, Guideline G) list alcohol-related driving offenses as a disqualifying condition, and a pattern of multiple offenses makes mitigation harder. Failure to comply with court-ordered treatment is a separate disqualifying factor. A second DUI usually prompts a formal review, with the burden on the clearance holder to demonstrate rehabilitation through documented treatment and sustained behavioral change.
Traveling to Canada
Canada treats DUI as a serious criminal offense under its immigration law, and two convictions make crossing the border difficult. Canadian agents can see your record through the RCMP’s CPIC system, which links to the FBI database. With two convictions you will likely not be considered rehabilitated by the passage of time alone. A Temporary Resident Permit can authorize a specific visit for up to three years. Criminal Rehabilitation is a permanent fix that requires at least five years to have passed since the end of your entire sentence (probation, fines, community service, and any other court-ordered conditions included), and applications can take over a year to process.14Government of Canada. Overcome Criminal Convictions
Why the Lifetime Lookback Matters
Colorado’s penalties climb sharply with each subsequent conviction. A third DUI is still a misdemeanor but with longer mandatory jail time and treatment. A fourth crosses into felony territory with a mandatory 90 to 180 consecutive days in jail even on probation, community service, and continuous alcohol monitoring for at least 90 days.5Justia. Colorado Code 42-4-1307 – Penalties for Alcohol and Drug-Related Driving Offenses Because the lookback is lifetime, prior offenses never age off. A DUI twenty years from now would be your third, not a fresh first.