Picture this: the judge signs off, the DMV letter arrives, and somewhere in the paperwork is a line saying you need an ignition interlock before you can drive legally again. For a lot of Colorado drivers, that means booking a Smart Start installation and figuring out what it will actually cost over the next year or two. The device is only one piece of the puzzle, though. Your insurance filing, your appointment schedule, and your restriction length all have to line up before the DMV hands back a license. Get one piece wrong and you can lose weeks. This guide walks through Smart Start interlock installation in Colorado, from locations and cost to the paperwork that trips people up most often.
Getting Started with Smart Start in Colorado
Your first job is confirming how long your interlock restriction lasts, because that number drives your total cost. First-time offenders with a BAC under 0.15 sit on the shorter end. Drivers labeled Persistent Drunk Drivers, meaning a BAC of 0.15 or higher or multiple offenses, must keep an interlock-restricted license for at least two years.
The law is also changing. Under House Bill 26-1242, the "wait-out" period for first-time DUI offenders is eliminated. Starting June 1, 2027, first-time offenders must complete a mandatory nine-month interlock period to regain full privileges. If your case is pending now, ask your attorney which rules apply to your offense date.
Once you know your timeline, call Smart Start to schedule installation. Most people book within a few days of getting their DMV paperwork, and that's smart: the restriction clock usually doesn't start until the device is in and your restricted license is issued.
Understanding Installation Costs and State Fees
Expect to pay more than just a monthly lease. Statewide estimates put the total annual cost of an ignition interlock in Colorado between $1,135 and $2,575, with monthly lease fees typically running $75 to $95. That range covers installation, leasing, calibration visits, and removal.
The biggest mistake I see is budgeting for the device and forgetting the SR-22. Your insurance premium will likely rise after a DUI, and that cost often outpaces the interlock itself. Shop both at the same time.
If money is tight, Colorado runs an Indigent Interlock Fund. Eligibility generally requires income at or below 150% of the federal poverty level, measured by Federal Adjusted Gross Income. Apply before installation, since assistance usually isn't retroactive.
Colorado IID Cost Breakdown Table
| Cost Item | What to Expect | Notes |
|---|---|---|
| Monthly lease | $75-$95 | Largest recurring cost |
| Annual total | $1,135-$2,575 | Includes install, service, removal |
| Calibration visits | Every 60 days | Missed visits can trigger lockouts |
| SR-22 filing | Varies by insurer | Required for restricted license |
| Financial aid | Income ≤150% poverty level | Apply before install |
Finding a Convenient Service Location Near You
Smart Start runs installation sites across Colorado, including hubs in Denver, Colorado Springs, Aurora, and Fort Collins. Front Range drivers usually have several options within a short drive. Mountain and Western Slope residents may travel farther, so plan ahead.
Pick a location based on where you'll be every 60 days, not just where you live today. A shop near your workplace often beats one near home if you can drop the car during a shift.
What to Bring to Your Appointment
- Valid ID and your DMV or court paperwork
- Vehicle registration for the car getting the device
- Payment method for installation and first month
- Time: plan for a couple of hours, including a training session on using the device
Maintaining Your Device and Reporting
Colorado requires service and calibration at an authorized center at least every 60 days. Each visit downloads your test data, which gets reported to the state. Smart Start devices also include a Smart IDLE feature, letting you keep the engine running for heat or AC without missing rolling retests. On a January morning in Breckenridge, that matters.
Common Questions About Colorado Interlock Rules
Can I get the device removed early? First-time offenders under 0.15 BAC may apply for early removal after four consecutive months of successful driving, with no tampering or readings of 0.025 or higher.
Do interlocks actually work? They're credited with a 67% reduction in repeat DUI offenses in Colorado.
What counts as a violation? Tampering, skipped retests, missed calibrations, and high BAC readings. Mouthwash and some foods can cause false positives, so rinse with water and wait before blowing.
Do I need an SR-22 if I don't own a car? Usually yes. A non-owner SR-22 policy can satisfy the filing requirement in many cases.
What happens if my SR-22 lapses?
Your insurer notifies the state, and your restricted license can be suspended. Set up autopay.
Your Next Steps Toward License Reinstatement
Getting your Colorado license back comes down to three moving parts: a working interlock, an active SR-22, and a clean driving record during your restriction. Book your installation first, confirm your restriction length, and check whether you qualify for financial assistance before paying out of pocket.
Then handle the insurance side. Reinstating a restricted license requires an SR-22 certificate, and SR22 Direct can often file in as little as 10 minutes so the DMV sees it fast. Their agents handle the paperwork and shop for competitive rates, whether you need a standard or non-owner policy.
Get a quote from SR22 Direct today, and you could have your filing done before your interlock appointment ends.
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About the Author:
Evan Marcotte
As the founder of SR22 Direct, I'm passionate about helping high-risk drivers get back on the road quickly, affordably, and without the runaround. My goal is to make SR22 and FR44 filings simple to understand and stress-free to complete — from your first quote to your certificate in hand, same day.

