If you were arrested for a DUI in West Covina or anywhere else in Los Angeles County, you are probably dealing with a lot of questions at once. One of the most common is whether you will be required to install an ignition interlock device on your vehicle. The answer depends on the facts of your case, your prior record, and how the case is resolved with guidance from a trusted criminal defense lawyer in West Covina.
Here is a plain-language breakdown of what California law requires and what your options may be.
What Is an Ignition Interlock Device?
An ignition interlock device (IID) is a breathalyzer unit installed directly into your vehicle's ignition system. Before the car starts, you must blow into the device. If your breath alcohol level is above a pre-set limit, the car will not start.
You are also required to provide rolling retests while driving, at random intervals. If you fail a retest, the device logs it and may trigger an alarm. All results are recorded and reported to the California DMV.
The device is installed at your expense, and monthly monitoring fees also fall on you.
Does California Require an IID After Every DUI?
Not automatically after an arrest, but a conviction changes things significantly. California law was updated through the Ignition Interlock Device Pilot Program, which originally applied to four counties. As of January 1, 2019, Senate Bill 1046 expanded mandatory IID requirements statewide for all DUI convictions.
Under current California law, here is what applies after a conviction:
First DUI offense with no injury: IID required for 6 months if you want to drive with a restricted license. You may be able to choose a 12-month suspension without IID instead, depending on your situation.
First DUI offense with injury: IID required for 1 year.
Second DUI offense: IID required for 2 years.
Third DUI offense: IID required for 3 years.
Fourth or subsequent DUI offense, or felony DUI: IID required for 4 years.
These timelines begin after your driving privilege is reinstated, not from the date of arrest.
What If You Were Not Convicted?
This is where having legal representation matters. If your DUI charge is reduced, dismissed, or resolved through a diversion program, the IID requirement may not apply in the same way or at all. A charge reduced to a wet reckless, for example, does not trigger the same mandatory IID requirements as a DUI conviction.
That distinction is significant. It affects your insurance, your driving record, and whether a breathalyzer device goes in your car.
We have helped clients in West Covina and across Los Angeles County challenge DUI charges on multiple grounds, including the legality of the traffic stop, the accuracy of the breathalyzer test, and how blood samples were handled. A West Covina criminal defense attorney who reviews your case from the beginning has a better chance of identifying those grounds than one who gets involved after a plea has already been offered.
Can You Drive at All While the IID Requirement Is in Effect?
Yes, in most cases. The IID requirement is tied to a restricted license, which allows you to drive to work, school, medical appointments, and other approved purposes. If you want to drive without restriction, you generally need to complete the suspension period in full and meet all other reinstatement requirements.
An attorney can help you understand which option makes more sense for your situation.
Do You Still Need the IID If You Don't Own a Car?
California law requires IID installation on any vehicle you operate, not just one you own. If you do not own a vehicle, you may be able to apply for an IID exemption with the DMV. The exemption is not automatic and requires documentation.
If you do own a vehicle, but it is claimed you never drive it, that does not exempt you. The requirement attaches to you, not the car.
What Happens to the DMV Side of a DUI Separate from the Court Case?
Most people do not realize that a DUI arrest in California triggers two separate proceedings: the criminal case at the West Covina Courthouse (Los Angeles County Superior Court, West Covina Branch) and a DMV administrative hearing about your driver's license.
You have 10 days from the date of arrest to request a DMV Administrative Per Se (APS) hearing. If you miss that window, the DMV will automatically suspend your license, regardless of what happens in court. Public defenders do not cover DMV hearings. That is a private representation issue, and it is one of the practical reasons to hire an attorney immediately after a DUI arrest.
Tammy Higgins spent 16 years as a public defender across Orange, Los Angeles, and San Bernardino counties, finishing in the Homicide Defense Unit. She has tried over 100 criminal cases to a jury verdict. At SoCal Defense Lawyer, we handle both the court case and the DMV hearing, so nothing falls through the gap.
Michael M., a client who came to us after his first DUI, described the experience this way: Tammy went to court on his behalf and secured the best available plea deal. He said hiring her made the whole process far less stressful than he expected.
Frequently Asked Questions
Q: Is an ignition interlock device required for a first DUI in California? A: Yes, if you are convicted. For a first offense with no injury, California law requires an IID for 6 months if you want to maintain driving privileges through a restricted license. Without the IID, you face a 12-month suspension. The requirement applies statewide as of January 1, 2019.
Q: Who pays for the ignition interlock device in California? A: The defendant pays all costs, including installation fees and monthly monitoring fees. Costs vary by provider but typically range from $70 to $150 for installation and $60 to $80 per month for monitoring. Financial assistance programs may be available for low-income drivers through the California DMV.
Q: Can a reduced charge eliminate the IID requirement? A: A reduction to a wet reckless (Vehicle Code 23103 per 23103.5) does not carry the same mandatory IID requirements as a DUI conviction. If your charges are reduced or dismissed, the standard IID rules do not apply in the same way. This is one reason why the outcome of your case, not just your guilt or innocence, has direct practical consequences for your daily life.
Q: What happens if I violate the ignition interlock device requirement? A: Tampering with the device, having someone else blow into it, or driving a vehicle without the required IID can result in extended IID requirements, license revocation, and additional criminal charges. Courts and the DMV treat these violations seriously.
Q: Does the DMV IID requirement apply even if the court drops my charges? A: The DMV and criminal court operate independently. Even if the court dismisses or reduces your charges, the DMV can still suspend your license based on the APS hearing outcome. This is why both proceedings need to be handled, not just the criminal case.
Q: How do I get the IID requirement removed from my record after I complete it? A: After you complete the required IID period, you must provide proof to the DMV that the device has been removed. Your provider submits a removal certificate. Once confirmed, the DMV updates your driving record, and your full license privileges can be restored, assuming all other reinstatement conditions are met.
Q: Can a DUI be expunged from my record in California? A: Most DUI convictions are eligible for expungement under Penal Code 1203.4 if you completed probation and did not serve state prison time. Expungement does not erase the conviction from DMV records, meaning it may still count as a prior offense for a future DUI within 10 years.
Talk to a West Covina DUI Attorney Before You Make Any Decisions
An IID requirement is one consequence of a DUI conviction in California. It is not inevitable. The outcome of your case determines whether and for how long you need one.
If you were arrested for a DUI in West Covina or the surrounding San Gabriel Valley, we are available now. Call us at (949) 828-5302 any time, day or night. Consultations are free and confidential. Our West Covina office is located at 1050 Lakes Dr Ste 225, West Covina, CA 91790.
Related Topics:
