Most people know that DUI stands for “Driving Under the Influence.” What most people don’t realize until after an arrest is that a single traffic stop in California sets two separate legal proceedings in motion: a criminal case in court and an administrative case at the DMV. The criminal case determines guilt, fines, and jail time. The DMV case determines whether you keep your license. It moves on its own timeline regardless of what happens in court. If you’re facing a DUI charge in Los Angeles, understanding both tracks, and how quickly they move, is the most urgent thing you need to know right now.
What Does DUI Mean under California Law?
California Vehicle Code Section 23152 governs drunk and drugged driving charges. Most people arrested for DUI face two charges simultaneously: VC 23152(a), which makes it unlawful to drive while impaired by alcohol to any degree that affects driving ability, and VC 23152(b), which separately makes it unlawful to drive with a blood alcohol concentration (BAC) of 0.08% or higher. A driver can face both charges at once but can only receive a single conviction.
California law requires proof that the person was actually driving, not simply sitting in or near a vehicle. That’s a meaningful distinction from many other states, and it’s one our attorneys examine closely in every case. California law also makes no distinction between legal and illegal substances. Prescription medications and over-the-counter drugs can support a DUI charge under VC 23152(f) if they impair the ability to drive safely.
DWI, OUI, OWI: Do These Terms Mean Anything in California?
California uses DUI exclusively. The state assigns no legal meaning to DWI, OWI, or OUI. Those terms describe the same category of offense in other states. If you’re searching “DWI” or “OUI” in California, you’re describing a California DUI charge.
The distinction matters more when prior convictions are involved. In Texas, Maryland, and Arkansas, DUI and DWI carry different legal meanings and separate penalty structures. In California, what matters is how a prior conviction is classified under the 10-year lookback period. A DUI conviction from another state (regardless of what that state called it) counts as a prior offense in California if it falls within that window, and that can directly elevate the penalties on a new charge here.
How Serious Is a California DUI Charge?
A first-offense DUI with no aggravating circumstances is typically charged as a misdemeanor. That still carries real consequences: up to six months in county jail (though probation is often imposed instead), base fines of $390 to $1,000 (with penalty assessments, total costs commonly reach several thousand dollars), a 6-month license suspension, a DUI education program lasting 3 to 9 months, and an ignition interlock device (IID) requirement. An IID is a breathalyzer installed in the vehicle that the driver must pass before the car will start.
A DUI becomes a felony in California under several circumstances: the driver has three or more prior DUI or wet reckless convictions within 10 years; someone was injured or killed; or the driver has any prior felony DUI conviction on record, regardless of when it occurred. A “wet reckless” is a plea bargain outcome under VC 23103, where a DUI charge is reduced to reckless driving with a notation that alcohol was involved. It carries lighter penalties but still counts as a prior DUI offense if the driver is arrested again.
Even short of felony territory, a misdemeanor DUI can be enhanced by aggravating factors. A BAC of 0.15% or higher, refusal to submit to a chemical test, driving with a passenger under 14, excessive speeding, or causing an accident can all add penalties on top of the standard misdemeanor sentence.
Special BAC Limits in California
The 0.08% threshold applies to most adult drivers, but several categories of drivers face a lower legal limit.
- Commercial drivers (CDL holders): 0.04% BAC while operating a commercial vehicle
- Rideshare and TNC drivers: 0.04% BAC when transporting a passenger for hire
- Drivers under 21: 0.01% BAC under California’s zero tolerance law (VC 23136)
- Drivers on DUI probation: 0.01% BAC at any time
These lower limits mean a driver in one of these categories can face a DUI charge at a BAC that would be lawful for another driver. And regardless of BAC, a driver can be charged under VC 23152(a) if the prosecution can demonstrate impaired driving through officer observations, field sobriety test results, or other evidence.
Two Cases Start the Moment You’re Arrested
A California DUI arrest triggers two independent proceedings simultaneously. The criminal case plays out in court and addresses guilt, fines, jail, and probation. The Administrative Per Se (APS) case runs at the DMV and addresses whether you keep your license. These tracks are separate. A case dismissed in court doesn’t automatically restore a suspended license, and a DMV hearing loss doesn’t mean a criminal conviction.
When an officer makes a DUI arrest, they typically confiscate the driver’s physical license and issue a pink DS-367 form. That form serves as a 30-day temporary driving permit. The driver then has exactly 10 calendar days from the date of arrest to contact the DMV and request an APS hearing. Miss that window, and the license generally suspends automatically on day 31. Requesting the hearing does more than protect the license. A timely request can also secure a stay of the suspension, allowing the driver to continue driving legally while the hearing is pending. The APS hearing also provides early access to the arresting officer’s notes and the chemical test records, which can be valuable in building the criminal defense. We have a dedicated resource on the DMV 10-day rule and what the hearing process involves for Los Angeles drivers.
The Long-Term Consequences of a DUI Conviction
A DUI conviction in California stays on a driving record for 10 years. During that period, it counts as a prior offense for penalty escalation on any new DUI arrest. The criminal record entry is permanent unless expunged under Penal Code 1203.4, and even an expunged conviction can remain visible in background checks for professional licensing and government employment.
Financial consequences extend well beyond court fines. California requires convicted drivers to obtain an SR-22 insurance certificate (a form filed by an insurer confirming the driver carries minimum required coverage) for three years following a conviction. Insurance premiums typically rise substantially and remain elevated for the duration of that period. Drivers who hold commercial licenses, healthcare licenses, teaching credentials, or other professional licenses may face separate disciplinary proceedings with their licensing boards.
For non-citizens, the stakes are higher still. A DUI charge can trigger visa complications even without a conviction. DUI convictions, depending on the facts and the sentence imposed, can affect naturalization applications, green card renewals, and DACA status. Immigration consequences are highly fact-specific, which is one reason it matters to have an attorney review the details of the charge before any court appearances.
What Can Actually Be Challenged in a DUI Case?
A DUI arrest isn’t a conviction. The evidence that leads to an arrest is often the same evidence a defense attorney can challenge, and prosecutors bear the burden of proving every element beyond a reasonable doubt.
Challenging the Stop & Field Evidence
Common defense approaches include questioning whether the officer had reasonable suspicion to make the initial traffic stop, examining whether field sobriety tests were properly administered and scored, and reviewing the calibration and maintenance records of the breathalyzer device used. A breathalyzer that hasn’t been properly serviced can produce unreliable BAC readings.
Challenging Blood Test Evidence
Blood test cases carry their own set of challenges. The chain of custody of the sample, storage conditions, and lab procedures must all meet legal standards. “Rising blood alcohol” is a recognized defense when a driver’s BAC was below 0.08% at the time they were actually driving but rose above the threshold by the time the test was administered (typically 30 minutes to two hours later).
Our Attorneys’ Backgrounds in DUI Defense
Jeffrey Gold earned his J.D. from Hastings College of the Law in 1983 and spent time as both a Los Angeles Deputy District Attorney and a Los Angeles Deputy Public Defender. That background means he understands how prosecutors build DUI cases from the inside. Nigel Witham has tried over 100 criminal cases across 30 years of practice in England and California and has been a member of the California State Bar since 1996. Together, our attorneys at Gold & Witham bring more than four decades of combined experience to DUI defense in Los Angeles and Long Beach.
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If you were arrested for DUI in the Los Angeles area, the 10-day DMV clock is already running. Reach our attorneys at (800) 716-6791. Both Jeffrey Gold and Nigel Witham work directly with clients from the first call.