A first-time DUI in California is typically charged as a misdemeanor under Vehicle Code §23152. The potential consequences include:
Criminal penalties: Up to 6 months in county jail, fines of $390-$1,000 (plus penalty assessments that can total $3,000+), and 3-5 years of informal probation.
License consequences: A 6-month license suspension from the DMV, though you may be eligible for a restricted license with an ignition interlock device (IID).
DUI school: A mandatory 3-month alcohol education program (AB 541), or 9 months if your BAC was 0.20% or higher.
Important note: California has a 10-year lookback period, so a prior DUI within 10 years means enhanced penalties for any subsequent offense. It's critical to consult with a DUI attorney as soon as possible after an arrest.