California DUI Laws & Penalties (2026)
California has a 10-year lookback period for DUI offenses. IID is mandatory statewide for all DUI convictions. Expungement is available after completing probation.
California DUI Penalties
1st Offense
2nd Offense
BAC Limits in California
📜 Expungement
DUI expungement is available in California. Waiting period: After probation completion.
Expungement Guide →💰 Estimated Total Cost
A first DUI in California typically costs $10,000-$25,000+ including fines, attorney, classes, IID, and insurance increases.
Calculate Your Cost →DUI Lawyers by City in California
Find a DUI Attorney in California
Connect with experienced DUI lawyers in Los Angeles, San Francisco, San Diego, and across California.
California DUI Deep Dives
🚨 First Offense Penalties
Complete guide to what happens on your first DUI in California.
🍺 BAC Limit
Legal BAC limits for standard, commercial, and under-21 drivers.
💰 DUI Cost
Full cost breakdown: fines, attorney, classes, insurance, and more.
🔧 Ignition Interlock Cost
IID installation, monthly fees, and provider comparison.
🚫 License Suspension
Suspension length, restricted license options, and reinstatement steps.
🧮 Cost Calculator
Estimate your total DUI cost with our interactive tool.
Official Sources & References
- 📋 Cal. Veh. Code § 23152 — California DUI statute
- 🚗 California DMV — License suspension, reinstatement, IID requirements
- 🔧 California Approved IID Vendors
- 📊 NHTSA Impaired Driving Data
- 🛡️ MADD — Mothers Against Drunk Driving
DUIFinders.com is not a law firm and does not provide legal advice. Information is for general purposes only. Consult a licensed attorney in California for advice specific to your situation.
California DUI FAQ
What is the BAC limit in California?
The legal BAC limit in California is 0.08% for regular drivers, 0.04% for commercial drivers, and 0.01% for drivers under 21.
What are the penalties for a first DUI in California?
A first DUI in California is a Misdemeanor. Penalties include 48 hours–6 months jail, $390–$1,000 in fines, and 6-month suspension license suspension.
Is an ignition interlock device required in California?
Required statewide for all DUI convictions
Can a DUI be expunged in California?
Yes, DUI expungement is available in California. Waiting period: After probation completion.
What is the lookback period for DUI in California?
California uses a 10-year lookback period to determine if an offense counts as a repeat offense.