In California, prosecutors generally have one year to file misdemeanor DUI charges and three years to file felony DUI charges, measured from the date of the alleged offense. That one-to-three-year window is the core of the California DUI statute of limitations, set by Penal Code 802 and Penal Code 801.1California Legislative Information. California Penal Code 8022California Legislative Information. California Penal Code 801 If a DUI causes a death and prosecutors pursue a murder charge, there is no deadline at all. A separate ten-day DMV deadline, which has nothing to do with criminal charges, starts the moment you are arrested.
Which Deadline Applies to Your Case
The filing deadline depends entirely on whether the DUI is charged as a misdemeanor or a felony. California Vehicle Code 23152 makes it illegal to drive while impaired by alcohol, drugs, or both, with a blood alcohol limit of 0.08% for drivers 21 and older, 0.04% for commercial drivers, and 0.01% for drivers under 21.3California Legislative Information. California Code VEH 231524California Legislative Information. California Code VEH 23136
Most first, second, and third DUI offenses without injuries are misdemeanors. A DUI becomes a felony in three main situations: the driver caused bodily injury to another person under Vehicle Code 23153; the driver has three or more prior DUI or wet-reckless convictions within the past ten years; or the driver has any prior felony DUI conviction.5California Legislative Information. California Code VEH 235506California Legislative Information. California Code VEH 23153 That classification triples the time prosecutors have to charge you.
One Year for a Misdemeanor DUI
Penal Code 802 requires prosecutors to file charges for any misdemeanor within one year of the date it was committed.1California Legislative Information. California Penal Code 802 That covers most DUI cases: first-time offenses, second offenses without injuries, and cases where the BAC was only slightly over the limit.
Prosecution “commences” when the complaint is filed with the court. It is not measured from your arrest, your release, or your first court appearance. One year sounds short, but misdemeanor DUI cases usually move faster than that because blood and breath test results come back within weeks. The more common experience is the opposite one: a driver is arrested, released, hears nothing for months, assumes the case has gone away, and then receives a summons that is still comfortably inside the one-year window.
Three Years for a Felony DUI
Under Penal Code 801, prosecutors have three years to file felony charges.2California Legislative Information. California Penal Code 801 A DUI causing injury under Vehicle Code 23153 is a wobbler, which means prosecutors can file it as either a misdemeanor or a felony.6California Legislative Information. California Code VEH 23153 If they go the felony route, the three-year deadline applies. A fourth DUI within ten years, chargeable as a felony under Vehicle Code 23550, carries the same three-year window.5California Legislative Information. California Code VEH 23550
The longer timeline reflects the complexity of these cases. When someone is injured, prosecutors often wait on medical records, accident reconstruction, or toxicology before deciding how to charge. A case that first looked like a misdemeanor can be reclassified upward if an injury turns out to be more serious than initially reported, provided the felony charge is filed within three years of the incident.
No Statute of Limitations for DUI Murder
When a DUI causes a fatality and the driver has a prior DUI conviction, prosecutors can file second-degree murder charges under what California courts call a Watson murder theory. The theory is that anyone previously convicted of DUI has been warned, often by the sentencing judge directly, that drunk driving is inherently dangerous to human life. Driving impaired again with that knowledge supplies the implied malice required for a murder charge.
Murder has no statute of limitations in California. Prosecutors can bring Watson murder charges years or even decades after the fatal crash. A conviction carries 15 years to life in state prison, a $10,000 fine, and a strike under California’s three-strikes law.
When the Clock Pauses
Certain circumstances toll the statute of limitations, giving prosecutors additional time. Under Penal Code 803(d), time you spend outside California after committing a DUI does not count against the deadline, up to a maximum of three extra years.7California Legislative Information. California Penal Code 803 A person who commits a misdemeanor DUI and immediately moves out of state could face charges up to four years later: one year of California time plus three years of tolling.
The statute also pauses while prosecution for the same conduct is pending in a California court. If charges are filed and later dismissed on a technicality, the time they were pending does not count against the deadline for refiling. Beyond these specific situations, the rule is strict. Penal Code 803(a) says the limitations period is “not tolled or extended for any reason” except as listed in that section.7California Legislative Information. California Penal Code 803
What Happens if Prosecutors Miss the Deadline
If the applicable period runs out before charges are filed, the case is dead. You can raise the expired statute of limitations at arraignment, and the court must dismiss the charges. This is an absolute bar to prosecution, not a technicality a judge can work around. Prosecutors cannot repackage the same conduct as a different charge to restart the clock, unless that new charge has its own independent limitations period that is still open, such as a felony theory discovered within the three-year window of a case that began as a misdemeanor investigation.
In practice, missed deadlines are rare. DUI arrests generate immediate paperwork: police reports, chemical test results, booking records. Prosecutors usually have everything they need long before any deadline approaches. The statute of limitations matters most in cases with delayed investigations, disputed test results, or defendants who left the state before charges were filed.
The Separate 10-Day DMV Deadline
The deadline most people miss has nothing to do with the criminal filing window. When you are arrested for DUI, the DMV automatically suspends your license through an Administrative Per Se action, separate from anything that happens in criminal court.8California Legislative Information. California Code VEH 13353.2 The suspension applies if your BAC was 0.08% or higher, 0.04% for commercial drivers, or 0.01% for drivers under 21 or on DUI probation.
You can request a hearing to challenge the suspension, but you must contact the DMV within ten days of receiving the notice.9California Department of Motor Vehicles. Driving Under the Influence (DUI) Miss that window and the suspension takes effect automatically with no chance to fight it. Requesting the hearing on time usually postpones the suspension until after the hearing is held. The criminal statute of limitations is measured in years; this one is measured in days, and it runs independently.
The Speedy Trial Clock After Charges Are Filed
The statute of limitations governs how long prosecutors can wait to file. Once charges are filed and you are arraigned, a different clock starts under Penal Code 1382. For a misdemeanor DUI, the prosecution must bring you to trial within 30 days of arraignment if you are in custody, or 45 days if you are out of custody. For a felony DUI, the deadline is 60 days after arraignment.10California Legislative Information. California Code PEN 1382 If the prosecution misses those deadlines, the case must be dismissed. Defendants can waive speedy trial rights, and many do on the advice of counsel to allow more time to prepare a defense.