A conviction under California Vehicle Code 23153(b) — driving with a BAC of 0.08% or higher and causing injury to another person — carries penalties that stack quickly: 90 days to one year in county jail as a misdemeanor, or 16 months to three years in state prison as a felony, plus fines starting at $390, uncapped restitution to the victim, a one-year license suspension, a mandatory ignition interlock, an SR-22 filing, and a DUI education program. Aggravating facts push the numbers higher, and a felony conviction with great bodily injury counts as a strike under California’s Three Strikes law.
How Prosecutors Decide Between Misdemeanor and Felony
Section 23153(b) is a wobbler. The prosecutor picks the filing level, and two factors drive that choice more than any others: how badly the victim was hurt, and whether the defendant has prior DUI convictions. A broken arm from a low-speed collision with a clean record often stays a misdemeanor. Serious injuries such as traumatic brain damage, or any prior DUI on the record, push the case toward felony territory. That first charging decision sets the ceiling for everything that follows, including jail versus prison, the length of any license action, and whether a strike attaches.
Jail, Prison, and Fine Ranges
First Offense
Under Vehicle Code 23554, a first-offense conviction carries a base fine of $390 to $1,000. That number understates the real cost. California adds penalty assessments and surcharges on top of every base fine, and a $390 fine routinely exceeds $2,000 by the time the assessments are stacked on.1California Legislative Information. California Code Vehicle Code VEH 23554 – First Offense DUI With Injury
A misdemeanor conviction carries 90 days to one year in county jail. A felony conviction carries 16 months, two years, or three years in state prison. Courts often grant probation on a first offense and impose a shorter jail term as a condition of probation, but the statutory floor for a straight jail sentence is 90 days, well above the five-day minimum for a standard DUI without injury.1California Legislative Information. California Code Vehicle Code VEH 23554 – First Offense DUI With Injury
Repeat Offenses
Penalties escalate sharply with prior DUI-related convictions inside a ten-year lookback window. Vehicle Code 23566 applies when DUI with injury causes great bodily injury and the driver has two or more prior DUI or wet-reckless convictions. The sentence is two, three, or four years in state prison and a fine of $1,015 to $5,000. If the driver has four or more priors within ten years, an additional consecutive three-year prison term is added on top of the base sentence.2California Legislative Information. California Code VEH 23566 – DUI With Injury and Great Bodily Injury Enhancement
Enhancements That Push the Sentence Higher
Great Bodily Injury
When the victim’s injuries are significant — broken bones, concussions, permanent scarring, or worse — the prosecution can add a great bodily injury enhancement under Penal Code 12022.7. The standard enhancement adds three consecutive years in state prison. If the injury leaves the victim comatose or permanently paralyzed, the enhancement is five years. Injuries to a victim aged 70 or older also carry a five-year enhancement, and injuries to a child under five carry four to six additional years.3California Legislative Information. California Penal Code 12022.7 – Sentence Enhancements
These years are consecutive, not concurrent. A three-year base term plus a three-year GBI enhancement is six years total.
Multiple Victims
When more than one person is injured in the same crash, Vehicle Code 23558 adds one year in state prison for each additional victim beyond the first, capped at three extra years. The enhancement applies only to felony convictions, and each additional victim’s injury has to be specifically charged and proven at trial or admitted by the defendant.4California Legislative Information. California Vehicle Code 23558 – Multiple Victim Enhancement
High Blood Alcohol Concentration
Vehicle Code 23578 requires the court to treat a BAC of 0.15% or higher as a “special factor” when setting the sentence, deciding whether to grant probation, and setting probation conditions. It does not prescribe a fixed additional prison term, but it gives judges explicit authority to impose harsher sentences and stricter supervision.5California Legislative Information. California Vehicle Code 23578 – High BAC Enhancement A BAC of 0.20% or higher separately triggers a longer mandatory DUI education program, which affects how quickly driving privileges can be restored.6California Department of Health Care Services. Driving-Under-the-Influence Programs
Restitution to the Injured Person
Courts order restitution to the victim for medical bills, lost wages, and property damage. Restitution is separate from the fine and has no cap. Whatever the victim can document as actual losses, the defendant pays. On serious injury cases, this figure typically dwarfs the fine.
License Suspension, Ignition Interlock, and SR-22
Suspension and Revocation
The DMV imposes administrative license actions that run alongside the criminal penalties. A first-offense DUI-with-injury conviction results in a one-year license suspension. A second offense within ten years triggers a three-year revocation. A conviction under Vehicle Code 23566 carries a five-year revocation.2California Legislative Information. California Code VEH 23566 – DUI With Injury and Great Bodily Injury Enhancement
Ignition Interlock Device
California requires every 23153 offender to install a certified ignition interlock device on every vehicle they operate. The device requires a clean breath sample before the engine will start and asks for additional samples while driving. The mandatory IID periods for a 23153 conviction are longer than for a standard DUI:
- First offense, no priors: 12 months
- One prior DUI: 24 months
- Two or more priors: 36 months
These periods are mandatory. Driving without an installed IID during the restriction period can trigger additional charges and a longer revocation.7California Legislative Information. California Code VEH 23575.3 – Ignition Interlock Device Requirements
SR-22 Filing
After the license suspension, California requires an SR-22 certificate on file — proof that the driver carries at least the state minimum liability coverage (currently 30/60/15). The insurance company files the SR-22 directly with the DMV, and the requirement typically runs three years. If the policy lapses or is canceled, the insurer notifies the DMV and the license is suspended again. The larger cost is the premium itself: carriers classify DUI-convicted drivers as high-risk, and annual premiums commonly double or triple for several years.
Mandatory DUI Education Program
Every person convicted under 23153(b) must complete a state-licensed alcohol and drug education program approved by the California Department of Health Care Services. A first offense usually means a three-month, 30-hour program. A BAC of 0.20% or higher pushes that to a nine-month, 60-hour program. Second and subsequent offenders face an 18-month program, and some counties offer a 30-month version for third-time offenders. Completing the program is a condition of probation and a prerequisite to getting driving privileges back. Online DUI classes do not satisfy the requirement — only in-person DHCS-licensed programs count.6California Department of Health Care Services. Driving-Under-the-Influence Programs
Long-Term Consequences Beyond the Sentence
Three Strikes
A felony conviction under 23153 with personal infliction of great bodily injury is a strike. Penal Code 1192.8 specifically lists Vehicle Code 23153 with personal infliction of GBI as a serious felony for Three Strikes purposes.8California Legislative Information. California Penal Code 1192.8 – Serious Felony Classification A first strike doubles the sentence on any future felony. A second strike can bring 25 years to life. A single drunk driving crash that fractures another person’s bones can shape the sentencing exposure on every future felony charge for the rest of the defendant’s life.
The Watson Advisement
Everyone convicted of DUI in California receives a Watson advisement — a formal warning that driving under the influence is dangerous to human life and that a future DUI resulting in a death can be charged as murder. Named after the 1981 California Supreme Court decision that established the doctrine, the advisement is the prosecution’s foundation for arguing implied malice next time. Vehicular manslaughter while intoxicated tops out at ten years. Second-degree murder under Penal Code 187 is fifteen years to life. A 23153(b) conviction leaves the defendant walking out of court with that warning permanently on the record.
Commercial Driver’s License
For anyone holding a CDL, the federal consequences are separate and severe. Under 49 CFR 383.51, a first DUI offense — whether in a commercial vehicle or a personal car — disqualifies the CDL for one year. A second DUI in any vehicle is a lifetime CDL disqualification. Refusing a chemical test carries the same disqualification as a conviction.9eCFR. 49 CFR 383.51 – Disqualification of Drivers These federal periods run on top of California’s action against the regular license.
Immigration
Non-citizens face risks that go past the criminal sentence. A simple DUI is generally not deportable on its own, but DUI causing bodily injury occupies a gray area that federal immigration authorities can push in either direction. When the case involves serious injury, a felony filing, or any other criminal history, the government may argue the offense is a crime involving moral turpitude or an aggravated felony, triggering deportation proceedings and barring future admission. Multiple DUI convictions, even without injury, can independently create inadmissibility problems for visa applicants and green card holders. The specific language of any plea matters as much as the sentence itself, because a favorable criminal resolution can still fall inside a deportable category.