California Interlock Device Requirements After a DUI: What You Need to Know
If you’ve been charged with a DUI in California, one of the first questions you may have is whether you’ll need to install an ignition interlock device (IID). California law has strict requirements for DUI offenders, and understanding your responsibilities is essential to getting back on the road legally and safely.
In this article, we’ll answer the most frequently searched questions about IIDs in California, including how long you need one, what to do if you don’t own a car, and whether there are any exceptions. We’ll also explain how an SR-22 and other requirements fit into your license reinstatement process.
Top Interlock Questions
- Do I Need to Have an Interlock Device After a DUI in California?
- How Long Do I Need to Have an Interlock Device?
- What If I Don’t Have a Car?
- Can I Get Out of Having an Interlock Device?
- Other Requirements for License Reinstatement in California
- Get Help with SR-22 and DUI Insurance Today
Do I Need to Have an Interlock Device After a DUI in California?
Yes, in most cases, California requires DUI offenders to install an ignition interlock device (IID) in their vehicle. This includes both first-time and repeat DUI convictions.
Here’s how it typically breaks down:
- First-time DUI (no injury): May require 6 months of IID use, depending on the DMV or court decision.
- DUI with injury or repeat offense: 1 to 4 years of IID usage is typically required.
- Refusal to take a chemical test: Can lead to longer license suspension and stricter requirements.
The IID prevents the vehicle from starting if alcohol is detected on the driver’s breath.
How Long Do I Need to Have an Interlock Device?
The length of time you’re required to have an IID depends on your DUI offense history. Your case may vary, but typically, the requirements are as follows:
| Offense Type | IID Duration |
|---|---|
| 1st DUI (non-injury) | Up to 6 months |
| 1st DUI (with injury) | 1 year |
| 2nd DUI | 1 year |
| 3rd DUI | 2 years |
| 4th or more DUI | 3–4 years |
Note: Typically, your IID time starts only once the device is installed and your restricted license is issued.
What If I Don’t Have a Car?
If you don’t own a vehicle, you are still legally responsible for fulfilling DMV and court obligations.
- You must file a Declaration of Non-Ownership with the DMV.
- You may not drive any vehicle unless it has an IID installed.
- If you gain access to a car later, you’ll need to install the IID to legally drive.
You’ll still likely need to file an SR-22 insurance certificate (get an SR22 quote here) and may face license restrictions, even without owning a vehicle.
Can I Get Out of Having an Interlock Device?
It’s rare, but there are a few exceptions where you might not have to install an IID:
- Court waiver: In limited first-time, non-injury cases, a judge may opt for license suspension instead.
- No access to a vehicle: You can certify non-ownership with the DMV.
- Medical exemption: Very rare and usually requires documentation and DMV approval.
However, opting to install an IID often helps you get back on the road faster with fewer long-term consequences.
Other Requirements for License Reinstatement in California
In addition to IID installation, DUI offenders typically must complete the following steps:
- SR-22 Insurance Filing: A certificate from your insurer proving you have the minimum required coverage. Must be maintained for 3 years.
- DUI School: Court-mandated alcohol education, often 3 to 18 months depending on the offense.
- DMV Fees: Includes reinstatement and administrative fees.
- Probation Requirements: You may need to complete court-assigned probation, community service, or jail time.
Get Help with SR-22 and DUI Insurance Today
Now that you know the California interlock requirements after a DUI, let’s cover other California DUI insurance requirements, like the SR-22. MIS Insurance Services can help you:
- Get your SR-22 filed the same day
- Find affordable car insurance or a non-owner operator policy tailored to your needs
- Understand and fulfill your reinstatement steps quickly
- Get a discount on your Interlock Device through our Interlock partner, LifeSafer
📞 Call us now at 800-726-0640 or get your instant quote online now!
