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.
Last updated: March 2026 · Laws verified against California statutes
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.