California counts DUI priors over a 10-year window, and the penalties escalate with each one — longer programs, longer license suspensions, and more custody exposure.
A first, second, and third are all misdemeanors; a fourth within 10 years, or a DUI causing injury, can be a felony.
First Offense
A first-offense DUI is a misdemeanor. The standard outcome is probation, fines, a DUI program, and license consequences — and in San Francisco it rarely results in actual jail. A first offense triggers two separate license actions: the DMV's automatic administrative suspension of 4 months (Veh. Code § 13353.3), where the 10-day DMV deadline applies, and a separate, longer 6-month suspension under Veh. Code § 13352 that applies only on a court conviction. Many first offenses are reduced to a wet reckless.
Second and Third Offense
Second and third DUIs within 10 years are still misdemeanors, but the penalties climb: a longer alcohol program with each offense, more probation conditions, more likely custody or alternatives, and longer license suspensions — typically 2 years on a second and 3 years on a third. Priors make the negotiation harder, which is exactly where attacking the stop and the test pays off.
When a DUI Becomes a Felony
A DUI is charged as a felony in specific situations: a fourth DUI within 10 years, a DUI with a prior felony DUI, or a DUI causing injury (VC 23153). Because standard diversion is barred for DUIs, the defense work — challenging the stop, the field tests, and the chemical test — is what drives a better result at every level.
Frequently Asked Questions
How long do DUI priors count in California?
Ten years. California counts prior DUI convictions over a 10-year window for sentencing, and the penalties escalate with each offense in that period — longer programs, longer license suspensions, and more custody exposure.
Is a second or third DUI a felony in California?
No. A first, second, and third DUI within 10 years are all misdemeanors, though the penalties escalate. A DUI becomes a felony with a fourth offense within 10 years, a prior felony DUI, or when it causes injury (VC 23153).
What is the license suspension for a first, second, or third DUI?
A DUI arrest triggers two separate license actions. The DMV's automatic administrative "per se" suspension is 4 months on a first offense and 1 year on a second within 10 years (Veh. Code § 13353.3); you have 10 days to request a DMV hearing to contest it, and missing that deadline forfeits your chance to contest it rather than lengthening the suspension. A separate, longer suspension applies only if you are convicted in court — typically 6 months on a first offense, 2 years on a second, and 3 years on a third, under Veh. Code § 13352.
GuidesComplete Guide to California Misdemeanors · Glossary · Penalties Reference.
Free 30-Minute Consultation
Where you fall on the DUI ladder shapes the whole strategy. Tell me your history and I'll tell you the play.
Schedule Free ConsultationAbout the Author
Ahmed S. Hasan
San Francisco Criminal Defense Attorney · State Bar of California #364992
Ahmed S. Hasan is the founder of ASH Legal, a solo criminal defense practice based in San Francisco. The firm runs on flat-fee representation: one lawyer, one fee, from arraignment through resolution. No hourly billing. No surprise invoices.
Ahmed is a graduate of Emory University School of Law and a member in good standing of the State Bar of California (Bar #364992). His practice focuses on San Francisco misdemeanor defense — DUI, domestic violence, petty theft and shoplifting, drug possession, vandalism, trespassing, and assault and battery — with particular attention to diversion-track outcomes that end in dismissal under PC 1001.95, PC 1001.36 (Mental Health Diversion), PC 1001.80 (Military Diversion), and PC 1001.83 (Parental Caregiver Diversion).
Ahmed previously served as a post-bar clerk with the San Francisco Public Defender's Office, the city's largest indigent-defense practice. He is a member of the Asian Pacific American Bar Association of Silicon Valley.
He represents clients at the San Francisco Hall of Justice (850 Bryant Street) and the Civic Center Courthouse. The ASH Legal office is at 15 Boardman Place, Suite 301, San Francisco, CA 94103.
Free 30-minute consultations are available by phone or Zoom. (510) 545-6515 · ahmed@ashlegal.com