Colorado courts require ignition interlock on most DUI convictions, and not every SR-22 carrier will write you while it's installed. Here's which carriers in Colorado accept interlock devices, what they charge, and what your quote depends on.
Which Colorado Carriers Accept Ignition Interlock Devices on SR-22 Policies
Progressive, The General, Bristol West, and National General write SR-22 policies in Colorado for drivers with court-ordered ignition interlock devices. State Farm and GEICO route most interlock-equipped DUI policies to non-standard subsidiaries or decline them outright during the active device period. USAA writes interlock policies only for members with first-offense DUIs and clean records otherwise.
The carrier that quoted you before your DUI conviction will not necessarily write you after sentencing if interlock is required. Most national carriers treat ignition interlock as a separate underwriting tier — you're not just high-risk, you're actively device-monitored, which changes how they price the policy and whether they'll write it at all.
Colorado law requires ignition interlock for 8 months minimum on a first DUI conviction with BAC under 0.15, and 2 years minimum if your BAC was 0.15 or higher or if this is a second offense. Your SR-22 filing requirement runs 3 years from your conviction date, so most drivers carry both the device and the SR-22 filing simultaneously for at least part of that period. You need a carrier willing to insure you through both.
What Colorado SR-22 Costs With an Ignition Interlock Device Installed
Monthly premiums for SR-22 coverage with ignition interlock in Colorado typically run $180–$320 per month for liability-only policies. Full coverage with collision and comprehensive adds another $90–$150 per month. The SR-22 filing fee itself is $15–$25, paid once when your carrier submits the certificate to the Colorado DMV.
Your rate depends on your BAC at arrest, whether this is a first or subsequent DUI, your age, and how long ago the conviction occurred. A first-offense DUI with BAC under 0.15 will price lower than a second offense or a refusal. Rates drop significantly once your interlock requirement ends and you've maintained continuous coverage — expect a 20–30% decrease when the device comes off, and another 15–25% decrease each year your SR-22 stays active without a lapse.
Estimates based on available industry data; individual rates vary by driving history, vehicle, coverage selections, and specific violation details.
Find out exactly how long SR-22 is required in your state
How Ignition Interlock Affects Your SR-22 Filing Requirement in Colorado
Colorado requires SR-22 filing for 3 years after a DUI conviction, measured from your conviction date, not the date you install the interlock device or the date your license is reinstated. Your ignition interlock requirement runs separately — 8 months to 2 years depending on your BAC and offense count. If you complete your interlock period but your SR-22 filing is still active, you must maintain the SR-22 on a standard policy for the remaining time.
Letting your SR-22 lapse at any point during the 3-year period resets your filing clock to zero and triggers an immediate license suspension. This includes lapses that occur after your interlock device is removed. The DMV does not care that your device requirement ended — your SR-22 filing must stay continuous for the full 3 years or you start over.
If you're sentenced to interlock, your carrier will be notified by the court or the DMV. Some carriers will non-renew your policy immediately. Others will move you to a non-standard subsidiary and reprice the policy. You have 30 days from the date of conviction to file SR-22 with the Colorado DMV, and you cannot reinstate your license until both the SR-22 is on file and the interlock device is installed and certified.
What Happens If You Try to Drive Without the Interlock Device
Driving any vehicle not equipped with your court-ordered ignition interlock device is a separate criminal offense in Colorado, classified as driving under restraint. This includes borrowing someone else's car, driving a work vehicle not equipped with interlock, or driving after your device has been tampered with or bypassed. A conviction adds another SR-22 requirement on top of your existing DUI filing period and can extend your total filing time by years.
Your interlock device logs every start attempt, every failed breath test, and every attempt to bypass or disconnect the unit. These logs are downloaded monthly and reported to the Colorado DMV and your sentencing court. If you accumulate violations — failed tests, missed rolling retests, or tampering events — your interlock period can be extended or you can be ordered back to court for compliance review.
Your insurance carrier does not monitor your interlock device directly, but the DMV will notify your carrier if your device is removed early, if you're found driving an unequipped vehicle, or if your interlock requirement is extended due to violations. Any of these events will trigger a rate increase, a policy non-renewal, or both.
How to Compare SR-22 Carriers While Your Interlock Requirement Is Active
Start by confirming the carrier writes SR-22 in Colorado and accepts ignition interlock-equipped vehicles. Not every carrier that writes SR-22 will write you during the active device period. Ask directly: "Do you write policies for drivers with court-ordered ignition interlock devices?" If the agent hedges or says they need to check with underwriting, that carrier probably doesn't write interlock policies routinely.
Get quotes from at least three carriers that confirmed they write interlock-equipped SR-22. Rate spreads for high-risk DUI drivers in Colorado can exceed 100% between the most expensive and least expensive carrier for the same coverage. One carrier may quote you $280 per month while another quotes $140 for identical liability limits.
Ask each carrier how your rate will change once your interlock requirement ends. Some carriers drop your premium significantly when the device is removed. Others hold your rate steady and apply the decrease only at renewal. Knowing this in advance helps you decide whether to shop again after your interlock period ends or stay with your current carrier.
What Coverage Limits You Need With SR-22 and Ignition Interlock in Colorado
Colorado's state minimum liability limits are 25/50/15: $25,000 per person for bodily injury, $50,000 per accident for bodily injury, and $15,000 for property damage. Your SR-22 filing certifies you carry at least these minimums. If you drop below them at any point, your carrier must notify the DMV within 10 days and your SR-22 will be cancelled.
Most high-risk carriers recommend 50/100/25 or 100/300/50 limits for drivers with DUI convictions and active interlock requirements. Higher limits reduce your out-of-pocket exposure if you cause another accident while your record is still under scrutiny. A second at-fault accident during your SR-22 period will make you nearly uninsurable in the standard market, so carrying higher liability limits is financial protection, not just compliance.
Uninsured motorist coverage is not required for SR-22 filing in Colorado, but it's worth carrying. Colorado has one of the higher uninsured driver rates in the region, and if an uninsured driver hits you while you're driving under SR-22 and interlock requirements, you'll be stuck paying for your own damages unless you carry UM coverage.
