Getting a DUI in California: What You Need to Know in 2026

A California DUI arrest starts two separate clocks: a criminal case that can take months, and a 10-day window to protect a driver's license that most people never hear about until it's already running. Both are manageable, but only for drivers who know the sequence before it starts.

California's DUI rules were updated for 2026. Assembly Bill 366 extended the state's ignition interlock pilot program through January 1, 2033, while preserving the existing framework for first offenders, meaning interlock installation generally remains at a judge's discretion rather than a flat requirement. Separately, the DMV runs its own license-suspension process, independent of the criminal case, on its own timeline and its own set of rules.

Here's what a DUI actually means under California law, the penalties a conviction carries, what happens to a driver's license along the way, how the DMV's hearing process works apart from the criminal case, and what to do in the days right after an arrest.

What is a DUI in California?

Under California DUI laws, specifically Vehicle Code Section 23152, a DUI can be charged under two legal theories: driving with a blood alcohol content (BAC) of 0.08% or higher, known as the "per se" standard, or driving while actually impaired by alcohol or drugs, regardless of BAC. Either theory can support a DUI charge or conviction, depending on the evidence.

The 0.08% legal limit applies specifically to alcohol. Drug-related and combined-substance cases have no equivalent numeric limit, so those rely on impairment evidence instead of a BAC number.

• Per se DUI (BAC-based): A BAC of 0.08% or higher is enough for a conviction, even if the driver didn't feel or appear impaired.
• Impairment-based DUI: Below 0.08%, a driver can still be charged if erratic driving, field sobriety test results, or other evidence show alcohol or drugs affected their ability to drive safely.
• Drug and combined-substance DUIs: The same statute covers driving under the influence of drugs, prescription or illicit, and combinations of alcohol and drugs. Since most drugs have no per se BAC-style limit, these cases rely on impairment evidence: officer observations, drug recognition evaluations, and toxicology results.

What Changed in 2026?

• Assembly Bill 366 extended California's statewide ignition interlock pilot program through January 1, 2033, a program California Department of Motor Vehicles (DMV) has highlighted on its official guidance pages. The extension keeps the existing framework running rather than replacing it: installation for a first, non-injury DUI generally remains at a judge's discretion, the same structure that's been in place since 2019.
• Courts can now reduce eligible "wobbler" DUI charges to a misdemeanor at any point before trial, not only at the preliminary hearing stage.
• Probation for DUI-related vehicular manslaughter increased from a typical 2-year cap to a required 3 to 5 years.

Penalties for a DUI in California

Ranges vary by case facts, prior record, whether the case is negotiated to a lesser charge such as "wet reckless" (a reckless driving charge that references alcohol use), and county-level practice. The figures below reflect typical outcomes under Vehicle Code Sections 23152, 23153, and 23536 through 23566, not a guaranteed sentence for any individual case.

*Criminal fines shown are base statutory amounts before court penalty assessments and fees, which typically raise the total due to several times the base fine.

First DUI

Criminal penalties:

• Jail time up to 6 months is possible, though not typical; many first-time cases resolve with summary DUI probation, fines, and DUI school rather than jail time
• Base fines of $390 to $1,000, before court assessments
• 3 to 9 months of DUI school

DMV and license consequences:

• Up to a 4-month driver’s license suspension through the DMV's Administrative Per Se process, separate from the criminal case
• An ignition interlock device remains at the court's discretion for a first, non-injury offense; a restricted license, with or without an IID, may be available before the full suspension period runs out

Second DUI

Criminal penalties:

• 96 hours to 1 year in jail, with a mandatory minimum jail term unlike a first offense
• Base fines of $390 to $1,000, before court assessments
• 18 to 30 months of DUI school, substantially longer than a first-offense program

Where a specific sentence lands within these ranges depends on factors like how recent the prior conviction was, the BAC level, and whether aggravating circumstances, such as an accident or a refused chemical test, are part of the record.

DMV and license consequences:

• A 1-year license suspension through the DMV's Administrative Per Se process, up from 4 months on a first offense
• An ignition interlock device generally required for 1 to 2 years, with less room for judicial discretion than a first offense

Third DUI

Criminal penalties:

• 120 days to 1 year in jail, with a longer mandatory minimum than a second offense
• Base fines of $390 to $1,000, before court assessments
• 30 months of DUI school, generally the longest program length among non-injury misdemeanor DUIs

Felony exposure on a third DUI isn't limited to reaching a fourth offense. Aggravating facts, such as an injury to another person or a prior felony DUI conviction already on the record, can support felony charges on a third offense as well. See "Felony DUI" and "DUI With Injury" below for how those paths work.

DMV and license consequences:

• A 1-year license suspension through the DMV's Administrative Per Se process, the same length as a second offense, though probation terms typically run longer
• An ignition interlock device generally required for a term longer than a second offense, often approaching the multi-year range used for felony DUIs

Felony DUI

A DUI becomes a felony under two main circumstances: a fourth DUI conviction within 10 years, or any DUI committed after a prior felony DUI conviction, regardless of how much time has passed. A high BAC or other aggravating factors can influence how a court handles a borderline case, but they don't change the underlying felony classification on their own.

Criminal penalties:

• State prison: 16 months, 2 years, or 3 years
• Fines: up to $5,000
• DUI school: typically 18 to 30 months
• Restitution: possible if the offense caused property damage or injury, though a felony DUI based solely on prior convictions doesn't automatically include a restitution order

DMV and license consequences:

• License suspension under the DMV's "second or subsequent offense" rule, generally 1 year, the same baseline that applies to any repeat offense
• An ignition interlock device generally required for a multi-year term, on top of the criminal sentence

A felony DUI based only on repeat offenses is not automatically a "strike" under California's Three Strikes Law. Three Strikes exposure generally attaches when a DUI causes great bodily injury and is charged as a serious or violent felony; see "DUI With Injury" below for that distinction.

DUI With Injury

Prosecutors may file certain DUI cases involving injury to another person as either a misdemeanor or a felony, a charging option known as a "wobbler." That decision generally turns on the severity of the injury and the driver's prior record, along with whether the driver's conduct or BAC shows aggravating negligence.

Misdemeanor DUI with injury

Criminal penalties:

• 5 days to 1 year in jail
• Base fines of $390 to $5,000, before court assessments
• 3 to 30 months of DUI school

DMV and license consequences:

• License suspension consistent with the underlying offense count, 4 months for a first offense, 1 year for a repeat offense
• An ignition interlock device generally required

Felony DUI with injury

Criminal penalties:

• 6 months to 6 years in state prison, plus 1 to 6 years for each injured person, scaled to the severity of the harm
• Fines up to $10,000
• 18 to 30 months of DUI school

A felony DUI with injury conviction does not, by itself, automatically count as a strike under California's Three Strikes Law. Strike status depends on whether the specific offense is charged and proven as a serious or violent felony, which turns on the circumstances of the case, not the felony DUI classification alone.

DMV and license consequences:

• License suspension consistent with the underlying offense count, with the DMV's injury-specific categories sometimes extending beyond a comparable non-injury case
• An ignition interlock device generally required for a multi-year term

Restitution versus civil compensation

A court in either the misdemeanor or felony track can order restitution as part of the criminal sentence, covering documented losses tied directly to the injury, such as medical bills, lost wages, and property damage. Restitution is a criminal court order paid by the defendant as part of sentencing; it is separate from any civil lawsuit an injured person may file. A civil case can pursue additional compensation, such as pain and suffering, that a criminal restitution order doesn't cover, and it proceeds on its own timeline regardless of how the criminal case resolves.

License Suspension and the DMV Process

A California DUI triggers two separate cases at once: the criminal charge in court, and a civil license action through the DMV. These run independently. A dismissal, acquittal, or reduced charge in criminal court doesn't automatically undo what happens to the license, and losing the DMV case doesn't affect the criminal outcome either way.

Requesting a DMV Hearing (Administrative Per Se)

The DMV suspends a license through a civil process called Administrative Per Se (APS), authorized under Vehicle Code Section 13353.2, entirely separate from the criminal case. This is an administrative hearing, not a court trial: a DMV hearing officer, not a judge, decides the outcome, there's no jury, and the case proceeds under the DMV's own procedural rules rather than the rules of criminal court.

• A driver, or their attorney, has 10 calendar days to request an APS hearing, counted from the date the Notice of Suspension is received, typically handed over at the time of arrest.
• Requesting the hearing on time keeps the temporary license, issued at arrest, valid until a hearing officer decides the case. Missing the 10-day window lets the suspension take effect automatically 30 days after arrest, regardless of what happens later in criminal court.
• The hearing officer reviews three narrow questions: whether the officer had probable cause for the stop, whether the arrest was lawful, and whether test results showed a BAC of 0.08% or higher.

How Long Does a Suspension Last?

Length isn't uniform. It depends on prior record, age, and whether a chemical test was taken or refused:

• First offense (BAC 0.08% or higher, test completed): up to 4 months
• Second or subsequent offense within 10 years: up to 1 year
• Test refused: a longer suspension than a standard offense, independent of BAC
• Under 21 (BAC 0.01% or higher): 1 year

Restricted Licenses

A restricted license and an ignition interlock requirement are two separate things that often interact, but neither one automatically includes the other.

Restricted-license eligibility

• A restricted license lets a driver continue driving during part of the suspension period, once DMV requirements are met, generally DUI school enrollment and proof of financial responsibility (an SR-22 filing).
• The application goes through the DMV and is separate from any conditions a judge sets as part of criminal probation.

How an IID changes what the restriction covers

• Without a court-ordered IID, a driver can generally apply for a narrower restriction, covering driving to and from work and to and from a DUI program only.
• With an IID installed, the DMV's own pilot program guidance allows broader driving privileges, anywhere and at any time, as long as the vehicle carries the device, rather than the work-and-DUI-school-only limitation.
• Whether an IID is required in the first place depends on the offense; see "Is an Ignition Interlock Device Required in 2026?" below.

Protecting Driving Privileges Immediately After Arrest

• Note the date on the Notice of Suspension and calendar the 10-day deadline that same day. Don't wait on a court date or an attorney consultation to start that clock.
• Contact the DMV Driver Safety Office listed on the notice, or have an attorney do it, to request the APS hearing before the deadline passes.
• Keep the temporary license and all arrest paperwork; the hearing officer and any restricted-license application reference the same documents.
• If the 10-day deadline is missed, apply for a restricted license as soon as suspension eligibility allows, rather than waiting out the full unrestricted suspension period.

Is an Ignition Interlock Device Required in 2026?

California has run a statewide ignition interlock pilot program since 2019. Installation has been mandatory for repeat and injury-involved offenders throughout that time, while remaining at a judge's discretion for a first, non-injury DUI.

Assembly Bill 366, signed into law in October 2025, extended this pilot program through January 1, 2033. It did not create a new mandatory-IID rule for first offenders; the existing discretionary framework for a first, non-injury DUI carries forward under the extension.

A few related points worth knowing:

• Medical exemptions exist for drivers who can't provide a breath sample strong enough to activate the device.
• Cost accommodations are a feature of the broader interlock program. Supporters of AB 366 specifically pointed to an income-based fee structure as one way the legislation addresses installation and monitoring costs; the specifics of how that structure applies in a given case are worth confirming with a current provider.
• Drug-only DUIs without injury have historically been treated differently from alcohol-related cases under the interlock rules. That distinction predates AB 366 and isn't something the 2026 extension changed.

An ignition interlock device tests a driver's breath before the vehicle will start and can require random retests while driving. Where a court orders one, installation periods generally run around six months for a first offense and extend to multiple years for repeat or injury-involved convictions, with the exact length set by the court or the DMV depending on the case.

One detail that's easy to miss: where an IID is required, it generally attaches to every vehicle a person operates, not just the one involved in the arrest. A driver with access to a second household vehicle can be required to install a device in that one too, under California Vehicle Code Section 23575.3.

Steps to Take After a California DUI Arrest

1. Contact a DUI defense attorney first.

An attorney can request the DMV hearing, pursue discovery, flag weaknesses in the stop, the arrest, or the chemical test, and identify whether alternative sentencing options, such as DUI court, work release, or electronic monitoring, are available in the specific county, before either the criminal case or the DMV clock moves further along. This step goes first because it shapes how the other three play out.

2. Track the court date and the DMV deadline as two separate calendars.

The criminal case and the DMV's suspension process run on different timelines. Staying current on both, not just the one with a courtroom attached, is what protects the license as well as the case itself.

3. Consider documenting sobriety as a supplement to legal strategy, not a substitute for it.

Some drivers use remote alcohol monitoring, including devices like BACtrack View, to build a dated, verifiable record during the case. That record can support an attorney's strategy or a request for a charge reduction, but it doesn't stand in for attending hearings, meeting court-ordered deadlines, or otherwise following the case's legal requirements.

4. Enroll in DUI school, court-ordered or voluntary, as early as the case allows.

Depending on the specifics of the case, early enrollment in treatment or DUI education program can factor into how a prosecutor or judge approaches sentencing. It's not a guaranteed outcome, and it doesn't substitute for legal representation, but timing tends to matter more than people expect.

Sobriety Monitoring

Documenting sobriety during a DUI case is different from proving innocence, it is about building a record that speaks for itself over time. Some people track this with a basic breathalyzer; others prefer an option that verifies and timestamps each test automatically. BACtrack View is one option built around that idea. Each test includes a short video, so a result is not just a number on a screen, it is something an attorney, a family member, or a court-assigned monitor can actually review. 

Results also compile into downloadable reports, which makes sharing weeks or months of progress simpler than forwarding individual screenshots. None of this changes what a case is legally, but a consistent, verifiable record can carry weight when the question is whether someone has stayed sober since an arrest.

Try BACtrack View free for 14 days.

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