HABLAMOS ESPAÑOL • AVAILABLE 24/7 • HELP WITH BAIL BONDS
(949) 785-5219 (949) 622-5522 Make a PaymentHABLAMOS ESPAÑOL • AVAILABLE 24/7 • HELP WITH BAIL BONDS
(949) 785-5219 (949) 622-5522 Make a Payment
A DUI allegation can interrupt a young driver’s education, employment, and independence. For families, the immediate questions often concern license suspension, court appearances, and whether a single mistake could affect the future.
California applies stricter alcohol rules to drivers under 21. Even a blood alcohol concentration (BAC) of 0.01% can trigger administrative license consequences, although that is different from a standard criminal DUI conviction.
Lauren Johnson-Norris assists young drivers and families with reviewing alcohol testing, police reports, DMV notices, and possible defenses.
California has three important alcohol thresholds that young drivers should understand.
| BAC level | Applicable law | Potential consequence |
|---|---|---|
| 0.01% | Vehicle Code §23136 | Zero tolerance violation and DMV license action |
| 0.05% | Vehicle Code §23140 | Additional underage alcohol-related driving offense |
| 0.08% | Vehicle Code §23152(b) | Standard criminal DUI charge may apply |
A driver under 21 can also face a criminal impairment charge under section 23152(a), even below 0.08%, if the required impairment is proven.
These laws create different legal issues and should not be treated as interchangeable.
Under Vehicle Code section 23136, a person under 21 may not drive with a BAC of 0.01% or greater as measured by a preliminary alcohol screening (PAS) or other chemical test.
This provision is primarily enforced through administrative licensing consequences. It does not require proof of impairment equivalent to an adult DUI charge.
However, the applicable findings still matter, including age, driving, alcohol consumption, and the reliability of the reported BAC.
The defense may examine the circumstances of the stop, testing instructions, equipment records, and officer observations.
Vehicle Code section 23140 prohibits driving under age 21 with a BAC of 0.05% or higher.
Unlike a simple zero tolerance administrative action, a section 23140 allegation can involve a court proceeding, monetary penalties, and education requirements.
A chemical test is not always the only evidence considered under this provision.
The prosecution must establish the required elements, and the defense may challenge the circumstances and interpretation of the alleged alcohol concentration.
For an under-21 driver with a qualifying BAC of 0.01% or higher, the California DMV generally imposes a one-year suspension.
Drivers usually have 10 days after receiving an administrative suspension notice to request a DMV hearing.
The hearing provides an opportunity to contest the administrative action. A timely request does not guarantee a successful result.
The California DMV’s DUI guidance explains these requirements.
Limited driving relief may be available under particular circumstances, but eligibility should never be assumed.
Read our California DUI DMV hearing guide for more information.
Underage drivers face different roadside testing obligations from most adults.
Vehicle Code section 23136 provides for PAS or chemical testing following a lawful detention when an officer has the required reasonable cause.
A qualifying refusal or failure to complete testing can result in substantial license penalties, potentially lasting longer than a positive low-level BAC test.
Testing evidence should be reviewed for:
A low BAC result is not automatically reliable simply because it appears on a police report.
Learn more about preliminary alcohol screening tests.
A defense depends on the particular charge and available evidence.
An attorney may investigate whether an officer had a lawful basis for the stop, whether testing procedures were followed, and whether the reported BAC supports the allegation.
Body camera footage, calibration records, witness statements, and the driver’s timeline may reveal important discrepancies.
Medical or testing-related explanations must be supported by relevant evidence rather than assumptions.
If an officer alleges impairment, the defense should separately examine driving behavior and field sobriety observations.
See our article about challenging the legality of a DUI traffic stop.
The impact may extend beyond the immediate case.
A young driver could face difficulties getting to school or work, changes in insurance costs, and additional consequences if criminal charges are filed.
A zero tolerance administrative suspension is not the same as a criminal DUI conviction. Understanding the distinction is important when evaluating records and future consequences.
Families should preserve documentation, follow notices carefully, and obtain legal guidance before deadlines expire.
Yes. California has separate 0.01% and 0.05% provisions for young drivers. Alcohol impairment charges may also apply below 0.08%.
Not by itself. Section 23136 is a zero tolerance provision associated with administrative license consequences, although other charges may apply.
A qualifying first administrative action generally results in a one-year suspension, subject to the applicable law and circumstances.
Refusal rules differ for drivers under 21. A legally requested PAS or chemical test under section 23136 can carry significant refusal penalties.
Yes. The stop, testing procedures, reported BAC, officer observations, and legal elements may be challenged when supported by evidence.
A young driver’s license and future opportunities deserve careful attention. Reviewing the paperwork quickly may help identify important DMV deadlines and defense issues.
Lauren Johnson-Norris assists clients facing underage alcohol-related driving allegations in Irvine and throughout Orange County.
Call (949) 622-5522 or contact the firm online to discuss the circumstances and available options.
