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What Happens After an Underage DUI in California

California's zero-tolerance law means a driver under 21 can be cited for DUI with a BAC as low as 0.01% — a level that produces no visible impairment in most people. For young people just starting their driving records, the consequences of an underage DUI extend well beyond the fine: license suspension, educational disruption, professional licensing barriers, and a criminal record that follows them into adulthood if not properly handled. At the Law Office of Nic Cocis, we defend underage DUI cases in Murrieta and throughout Southwest Riverside County with the same attention we bring to adult DUI matters.

California’s Underage DUI Laws

Three Separate Statutes — and How They Interact

California's approach to underage drinking and driving involves three overlapping statutes, and which one applies depends on the driver's BAC and the circumstances of the stop.

Vehicle Code § 23136 — the zero-tolerance law.

For drivers under 21, a BAC of 0.01% or higher is sufficient for a civil administrative action resulting in a one-year license suspension. This is not a criminal charge — it’s an administrative offense — but the license suspension is real and automatic without a DMV hearing. It applies to any detectable amount of alcohol, including residual amounts from a prior evening.

Vehicle Code § 23140 — underage DUI.

A driver under 21 with a BAC of 0.05% to 0.07% is charged under this section. It’s an infraction — not a misdemeanor or felony — but it carries a one-year license suspension, a fine, and a mandatory three-month education program. It doesn’t result in a criminal conviction, but it appears on the DMV record and affects insurance rates.

Vehicle Code § 23152 — standard DUI.

A driver under 21 with a BAC of 0.08% or higher is charged under the same statute as an adult — and the standard DUI penalties apply. That means a misdemeanor conviction, a formal probation term, a six-month license suspension (or longer if the DMV action triggers an additional suspension), and a required DUI education program. If the driver is 18 or older, this appears on an adult criminal record.

The Stakes Beyond the Charge

A standard DUI conviction for a driver under 21 creates an adult criminal record if the driver is 18 or older. That record affects college financial aid, military service eligibility, professional licensing applications, and employment background checks for years. For drivers 16 or 17, the case is handled in juvenile court — which carries its own set of concerns for the minor's future, including potential effects on driver's license eligibility into adulthood.

How We Can Help with Underage DUI Charges

The defenses available in an underage DUI case are the same as those in an adult DUI — the validity of the stop, the administration of field sobriety tests, the accuracy of the breath test, the ten-day DMV hearing window. The difference is that the BAC thresholds are lower, which means the evidence analysis is sometimes more favorable: a 0.05% reading is more susceptible to margin-of-error challenges than a 0.12% reading.

Our underage DUI defense services include:

Requesting the DMV hearing within the ten-day window
Challenging the stop, the field sobriety test administration, and the breathalyzer result
Pursuing charge reduction or diversion for eligible first-time offenders
Advising on the record consequences for drivers who are 18 or older
Handling juvenile court matters for drivers under 18
Pursuing expungement at the appropriate time for adult convictions

What to Expect When You Work with Us

01

Immediate DMV Action

The one-year suspension under § 23136 triggers automatically without a hearing request. We act within the ten-day window without exception.

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02

Evidence and BAC Analysis

Low BAC readings — particularly in the 0.05% to 0.08% range — are more susceptible to margin-of-error arguments. Breathalyzer accuracy at low readings, the effect of residual mouth alcohol, and testing timing are all examined.

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03

Diversion and Record Protection

For first-time offenders under 18 or 21, diversion programs and deferred entry of judgment may be available — outcomes that avoid a formal conviction on the record entirely. We evaluate every option that keeps the record clean.

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04

Long-Term Record Counseling

We advise on what a conviction, an infraction, or a DMV action means for the driver's record going forward — including what's eligible for expungement and when.

Two individuals shaking hands over a wooden desk with legal documents, a pen, and a judge's gavel.

Why Choose the Law Office of Nic Cocis?

Adult and Juvenile Court Experience

Handles underage DUI in both courts depending on the driver’s age

Record-Focused Defense

Treats record consequences as seriously as the immediate penalty

25+ Years in Southwest Riverside County

Familiarity with how underage DUI cases are resolved locally

Multilingual Services

English, Romanian, and Spanish available

Frequently Asked Questions

Juvenile DUI adjudications are handled in juvenile court and are not automatically part of an adult criminal record. Under California law, juvenile records can be sealed under Welfare and Institutions Code § 781 once the minor turns 18 and meets the sealing requirements. However, a juvenile DUI adjudication does affect the minor's driving record, and the DMV suspension applies regardless of the court outcome. We evaluate both the juvenile court disposition and the DMV action simultaneously to minimize long-term consequences.

Yes. A reading of 0.06% falls between the § 23140 threshold (0.05%) and the § 23152 threshold (0.08%), which means it's charged as an infraction under § 23140 rather than a criminal DUI — but a defense still exists. Breathalyzer accuracy at low BAC levels is legitimately contested. The margin of error on most approved breath testing devices is ±0.005%, meaning a 0.06% result could reflect a true BAC anywhere from 0.055% to 0.065%. Residual mouth alcohol, testing timing relative to consumption, and device calibration are all relevant. The charge being an infraction doesn't mean it should be accepted without examination.

A DUI conviction doesn't directly affect federal financial aid eligibility under the Higher Education Act — that restriction applies only to drug-related convictions. However, many colleges conduct background checks or require disclosure of criminal convictions on applications. A misdemeanor DUI on a record can affect admission decisions and scholarship eligibility. This is one reason we treat record outcome as a central concern in every underage DUI matter — not just the immediate penalty.

Facing an Underage DUI Charge in Murrieta?

The record consequences of an underage DUI are long-term. Contact the Law Office of Nic Cocis for a consultation. We serve clients in Murrieta, Temecula, Menifee, Lake Elsinore, Wildomar, Winchester, Canyon Lake, French Valley, and throughout Southwest Riverside County.

  • Murrieta

  • Menifee

  • Wildomar

  • Canyon Lake

  • Temecula

  • Lake Elsinore

  • Winchester

  • French Valley

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