First DUI in California: Penalties, License Suspension, and What Happens Next

A first DUI in California is the most common criminal charge that lands middle-class people in the criminal justice system. The penalties are substantial. The collateral consequences — insurance, employment, professional licensing, immigration — often outweigh the criminal penalties themselves. Defended properly, a first DUI can often be reduced to a wet reckless under Vehicle Code §23103.5 or dismissed entirely.

This article covers what actually happens after a first DUI arrest in California, with the timeline, the penalties, the two parallel proceedings (criminal court and DMV), and the defenses that move cases.

What are the charges in a typical first DUI in California?

Two counts are usually filed together.

Vehicle Code §23152(a) — Driving under the influence

Driving a vehicle while under the influence of alcohol or drugs. Focuses on impairment. Does not require a specific blood alcohol concentration (BAC). A driver can be convicted under §23152(a) at any BAC if the prosecution proves impairment.

Vehicle Code §23152(b) — Driving with a BAC of 0.08% or higher

Per se offense. The prosecution does not need to prove impairment. They need to prove the driver had a BAC of 0.08 or higher within three hours of driving. Most cases prosecuted under (a) and (b) together.

Lower BAC thresholds apply in some cases. Commercial drivers face a 0.04 limit under Vehicle Code §23152(d). Drivers under 21 face a 0.01 limit under Vehicle Code §23136 (zero tolerance). Drivers on DUI probation face a 0.01 limit under Vehicle Code §23154.

If injury occurred, the charge escalates to Vehicle Code §23153 (DUI causing injury), which is a wobbler and carries enhanced penalties.

What are the criminal penalties for a first DUI in California?

Standard sentence for a first-offense misdemeanor DUI in San Diego County, with no aggravating factors:

• County jail of up to six months, though first-time non-injury cases without aggravators rarely result in jail.
• Fines of $390 to $1,000 base, with penalty assessments and fees bringing total court-ordered financial obligations to approximately $1,800 to $3,600 depending on the jurisdiction.
• Informal (summary) probation for three to five years.
• Completion of a DUI program under Vehicle Code §23538. The three-month program (AB541) is standard. If BAC was 0.20 or higher, the nine-month program (AB762) is required.
• Driver's license suspension of six months under Vehicle Code §13352(a)(1), with a restricted license available after thirty days if the driver completes the DUI program and installs an ignition interlock device.
• Ignition interlock device (IID) installation requirement of six months for any first DUI under SB 1046, which made IID mandatory statewide from 2019 forward.
• AA or NA meeting attendance in some jurisdictions, often six to twenty meetings.
• MADD victim impact panel attendance.

Aggravating factors push penalties higher. These include: BAC of 0.15 or higher, refusal to submit to chemical testing, speed over 20 mph over the limit, presence of a minor in the vehicle (which adds a Vehicle Code §23572 enhancement), and any property damage or injury.

What about the DMV — is that a separate case?

Yes, and most people are surprised by this. The criminal court case and the DMV administrative case are two separate proceedings on the same arrest.

The 10-day rule

After a DUI arrest, the officer typically takes the driver's license and issues a temporary license (the pink form). You have ten days to request a DMV Administrative Per Se (APS) hearing. If you do not request the hearing within ten days, your license is automatically suspended starting on the 30th day after arrest for four months on a first DUI.

The APS hearing itself

The hearing is held by a DMV hearing officer (not a judge), in person or by phone. The DMV has the burden to prove three things: (1) the officer had reasonable cause to believe the driver was DUI, (2) the driver was lawfully arrested, and (3) the driver had a BAC of 0.08 or higher (or refused testing).

Winning the APS hearing keeps the license valid even if the criminal case proceeds. Losing the APS hearing triggers the four-month suspension, which can be replaced with a restricted license after thirty days if requirements are met.

Criminal court suspension on top

If convicted in criminal court, a separate six-month suspension under §13352 is triggered. Whether this runs concurrently with or consecutively to the APS suspension depends on the timing and the specific orders.

What is the timeline after a first DUI arrest?

A typical San Diego County first DUI timeline:

Day of arrest

Arrest, booking, blood or breath test, release on your own recognizance or on bail. Vehicle towed and impounded under Vehicle Code §22651(h). You receive a citation with a court date and the pink temporary license.

Days 1–10

Request the DMV APS hearing within ten days. Hire defense counsel. Retrieve your vehicle from impound. Begin reviewing the police report and any available video.

Days 11–45

Arraignment in San Diego Superior Court (Central, East, North, or South division depending on where the arrest occurred). Plea of not guilty entered. Discovery begins. DMV APS hearing typically set 30 to 60 days out.

Days 45–120

DMV APS hearing. Pretrial conferences. Defense motions filed if applicable (motion to suppress under §1538.5, motion to compel discovery, motion in limine on field sobriety tests).

Days 120–270

Plea negotiations, additional pretrial conferences, possible reduction to wet reckless or dry reckless, or setting for trial.

Days 270–365

Disposition. Either plea agreement, dismissal, or trial. Sentencing if convicted. DUI program enrollment begins.

Defense work happens throughout. The longer the defense has to work the case, the more options develop.

What defenses work against a first DUI in California?

DUI defense in California is technical. Five categories produce results.

Challenge the traffic stop

If the officer did not have reasonable suspicion to stop the vehicle, the entire case can be suppressed under People v. Wells and Penal Code §1538.5. Common bases: weaving within a lane (not unlawful), failure to use a turn signal where one is not required, anonymous tip without corroboration.

Challenge the field sobriety tests

The standardized field sobriety tests (Horizontal Gaze Nystagmus, Walk and Turn, One-Leg Stand) have known false positive rates documented by NHTSA. Conditions affecting reliability include uneven ground, bright lights, footwear, age over 65, weight, medical conditions, and language barriers. Improperly administered tests are excludable.

Challenge the breath test

Breath testing machines (Intoxilyzer 8000, Alco-Sensor) have calibration and accuracy issues. Title 17 of the California Code of Regulations requires specific procedures. Failure to wait 15 minutes before testing, mouth alcohol contamination, machine miscalibration, and software issues are all attackable.

Challenge the blood test

Blood samples require proper chain of custody, qualified phlebotomist, anti-coagulant in the vial, and proper storage. Title 17 violations are common. Rising blood alcohol defense applies where the BAC at the time of driving was below 0.08 but rose above by the time of the test.

Challenge the impairment evidence

Under §23152(a), the prosecution must prove impairment. Driving pattern, officer observations, and field sobriety performance are all subject to alternate explanations: fatigue, medical conditions, language barriers, prescription medication taken legally.

What is a wet reckless and when does it apply?

A wet reckless under Vehicle Code §23103.5 is a reckless driving charge with an alcohol notation. It is the most common plea bargain in California DUI cases.

Advantages over a DUI conviction:

• No mandatory license suspension by the court (DMV APS still applies if not won).
• Shorter DUI program (12-hour wet reckless program vs. 3-month or 9-month DUI program).
• Lower fines.
• Shorter probation in some cases.
• Less stigma on a criminal background check.

Disadvantages:

• Still a priorable offense — counts as a DUI for any future DUI within ten years.
• Still requires DUI program completion.
• Still carries insurance consequences.

Wet reckless is typically offered when the prosecution's case has a weakness (borderline BAC, suppression issues, problematic field sobriety tests) but the defense is not strong enough for outright dismissal.

What are the collateral consequences of a first DUI?

Often these matter more than the criminal sentence itself.

• Auto insurance premium increases of 50% to 200%, typically lasting three to five years. SR-22 filing requirement for three years.
• Employment background check disclosure. Certain industries (commercial driving, healthcare, education, government, security) trigger specific licensing review.
• Professional licensing review for nurses, doctors, lawyers, real estate agents, contractors, pilots, and others.
• Immigration consequences. A single DUI is generally not a deportable offense, but multiple DUIs, DUI with injury, or DUI with a minor in the vehicle can trigger immigration scrutiny.
• Security clearance reviews for government employees and contractors.
• Travel restrictions. Canada specifically denies entry to anyone with a DUI within the past ten years unless rehabilitation is documented.

Frequently asked questions

Can a first DUI be dismissed in California?

Yes, though outright dismissals are not the most common outcome. Dismissals typically come through successful motions to suppress (the traffic stop, the chemical test, the field sobriety tests) or when discovery shows fatal flaws in the prosecution's case.

Will I lose my license on a first DUI?

Not necessarily for the full period. The DMV APS suspension is four months for a first DUI, replaceable with a restricted license after thirty days if requirements are met. A criminal court conviction adds a six-month suspension under §13352, also replaceable with a restricted license.

Do I have to install an ignition interlock device?

Yes. Under SB 1046, IID is mandatory for any first DUI conviction in California for six months.

How much does a first DUI cost in total?

Including fines, fees, DUI program, IID, insurance increases, attorney fees, and lost income from program time, a first DUI typically costs $8,000 to $15,000 over three to five years. More if the case is contested through trial.

Can I get a first DUI expunged in California?

Yes, under Penal Code §1203.4 after probation is successfully completed. Expungement dismisses the case and allows you to legally state in most contexts that you were not convicted, with limited exceptions (commercial driving applications, peace officer applications).

Will my insurance company find out?

Yes, when you submit the SR-22 filing required after a DUI conviction. Insurance companies also check the DMV record directly during renewal. Rates typically increase substantially for three to five years.