SAN DIEGO, CA – Drivers under 21 in California face a far lower threshold for a DUI than adult drivers, with even trace amounts of alcohol potentially triggering a violation under state law. San Diego underage DUI defense attorney Anna R. Yum of the Law Offices of Anna R. Yum (https://www.annayumlaw.com/practice-areas/san-diego-dui-lawyer/underage-dui/) explains how California’s zero-tolerance statute, the 10-day DMV hearing deadline, and the difference between administrative and criminal charges affect minors and their families.
According to San Diego underage DUI defense attorney Anna R. Yum, California Vehicle Code Section 23136 makes it illegal for any driver under 21 to operate a vehicle with a blood-alcohol concentration of 0.01% or higher. The threshold is so low that a single drink, or even residual mouth alcohol from products containing alcohol, can trigger a violation. “The 0.01% standard means that issues which would never matter for an adult driver can become central to an underage case,” explains Yum. “Mouth alcohol from mouthwash, testing procedure errors, and the calibration of the PAS device are all things that should be reviewed carefully.”
San Diego underage DUI defense attorney Anna R. Yum notes that California recognizes three escalating charge levels for underage drivers. A violation of VC 23136 is an administrative offense handled by the DMV and carries a one-year license suspension. VC 23140 applies at a BAC of 0.05% or higher and is an infraction with a $100 fine and a one-year suspension. A standard misdemeanor DUI under VC 23152 applies at a BAC of 0.08% or higher and can result in 96 hours to six months in county jail, fines between $390 and $1,000 plus penalty assessments, mandatory DUI school, and probation.
Attorney Yum emphasizes that the administrative DMV process moves quickly after an underage arrest. The driver generally has only 10 days from receiving the suspension notice to request a DMV Admin Per Se hearing, and missing that deadline typically allows the suspension to take effect automatically. “Families often focus first on the criminal case, but the DMV deadline can pass before they realize what is happening,” Yum adds. “Requesting that hearing on time preserves the chance to challenge the suspension before it begins.”
The Law Offices of Anna R. Yum represents minors and young adults facing underage DUI charges throughout San Diego County, including the City of San Diego, Chula Vista, Oceanside, Escondido, El Cajon, Carlsbad, Vista, San Marcos, Encinitas, National City, La Mesa, Poway, and Santee. The firm handles both DMV hearings and the criminal proceedings that may run in parallel.
Yum points out that several defenses commonly arise in underage cases, including challenges to the legality of the traffic stop, improper administration or calibration of the PAS or chemical test, mouth alcohol contamination, and the rising BAC defense. Procedural errors in how officers informed the driver about testing consequences or documented the stop can also create grounds to challenge the evidence. In some cases, a charge under VC 23152 can be negotiated down to a “wet reckless” under VC 23103.5, which carries lower fines, shorter probation, and less long-term stigma, although it still counts as a prior DUI offense if the driver is charged again within 10 years.
“The decisions made in the hours and days after an underage arrest often determine the outcome of the case,” notes Yum. “Speaking to officers without counsel and missing the 10-day DMV deadline are two of the most damaging mistakes, and both are difficult to undo.”
For families dealing with an underage DUI in San Diego County, contacting an experienced defense attorney early can help protect driving privileges, address the DMV process, and evaluate available defenses before key deadlines pass.
About Law Offices of Anna R. Yum:
Law Offices of Anna R. Yum is a San Diego-based criminal defense firm focused on DUI and related criminal matters. Led by founding attorney Anna R. Yum, a former Riverside County Deputy District Attorney, the firm represents clients throughout San Diego County, including minors and college students facing underage DUI allegations. For consultations, call (619) 233-4433.
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Website: https://www.annayumlaw.com/
Media ContactCompany Name: Law Offices of Anna R. YumContact Person: Anna R. YumEmail: Send EmailPhone: (619) 233-4433Address:1230 Columbia St #1140 City: San DiegoState: California 92101Country: United StatesWebsite: https://www.annayumlaw.com/
