DUI in California
State-specific overview · Criminal Law
California mandates DUI education programs, license suspension, and fines, with ignition interlock devices required for higher BAC levels.
How California treats DUI
A first DUI conviction in California results in 3–6 months in jail (often suspended), fines of $1,000–$1,800, and a 6-month license suspension. California requires completion of a 3-month DUI education program as a condition of license reinstatement. Drivers with a BAC of 0.15% or higher must install an ignition interlock device for 6 months. California's BAC threshold is 0.08% for drivers 21 and older, 0.04% for commercial drivers, and 0.01% for drivers under 21. Refusing a breath or blood test triggers a separate one-year license suspension.
The general definition of DUI
Driving under the influence of alcohol or drugs, a serious criminal offense.
DUI stands for Driving Under the Influence and means operating a vehicle while impaired by alcohol, drugs, or both. You can be charged with DUI even if your blood alcohol level is below the legal limit if your driving is noticeably impaired. Penalties vary by jurisdiction and whether it's a first or repeat offense, but typically include fines, license suspension, jail time, and mandatory alcohol education programs. A DUI conviction has lasting effects on insurance rates, employment, and your driving record.
Read the full DUI entry →This page is a plain-English reference and is not legal advice. State laws change frequently. For specific situations consult a licensed attorney in California.