Is a DUI a Felony or Misdemeanor in California?

In California, a DUI is a misdemeanor for a first, second, or third offense when nobody is hurt. It becomes a felony in four situations: a fourth DUI within ten years, a DUI that causes injury (when the prosecutor charges it as a felony), a DUI that causes death, or any DUI when the driver already has a prior felony DUI on record. That line decides whether you are looking at county jail or state prison, and it drives most of the consequences that outlast the sentence itself.

The Misdemeanor Tiers

California Vehicle Code 23152 makes it illegal to drive under the influence or to drive with a blood alcohol concentration of 0.08% or higher. The limit drops to 0.04% for commercial drivers and 0.01% for drivers under 21.¹² A first, second, or third violation with no injuries is a misdemeanor. Probation for any misdemeanor DUI runs three to five years.³

First Offense

A first DUI carries 96 hours to six months in county jail, with at least 48 hours served continuously, and a base fine of $390 to $1,000 before penalty assessments push the real total into the thousands.⁴⁵⁶ The court may order an ignition interlock device for up to six months, or you can accept alternative license restrictions instead.⁷

Second Offense

A second DUI within ten years raises the jail range to 90 days to one year, keeps the base fine at $390 to $1,000, doubles the license suspension to two years, and requires a mandatory 12-month IID.⁸⁷

Third Offense

A third misdemeanor DUI within ten years requires 120 days to one year in county jail with the same $390 to $1,000 base fine. Your license is revoked for three years, you are designated a habitual traffic offender for another three years after that, and the IID term is 24 months.⁹⁷ The “misdemeanor” label can be misleading here; a third-offense sentence often looks more like a light felony.

What Turns a DUI Into a Felony

A Fourth DUI Within Ten Years

A fourth DUI conviction inside a ten-year window is punishable by state prison or by 180 days to one year in county jail, plus the $390 to $1,000 base fine.¹⁰ If prison is imposed, the standard term is 16 months, two years, or three years. The lookback counts prior convictions under Vehicle Code 23152 (standard DUI), 23153 (DUI with injury), and 23103.5 (wet reckless pleas), so pleading down an earlier case still leaves that prior on the count. License revocation is four years, and the mandatory IID term is 36 months.⁷

Any DUI With a Prior Felony DUI

If you already have a felony DUI on your record, any new DUI within ten years of that prior is charged as a felony, regardless of how many total DUIs you have.¹⁰ The same rule applies if the prior was for vehicular manslaughter while intoxicated. Punishment is state prison or up to one year in county jail plus the $390 to $1,000 base fine, and license revocation is five years.⁵

DUI Causing Injury

Driving under the influence and causing bodily injury to another person is a separate offense under Vehicle Code 23153, and it is a “wobbler” — the prosecutor chooses whether to file it as a misdemeanor or felony.¹¹ Even on a first offense, the punishment reaches state prison or 90 days to one year in county jail.¹² Felony filings become more likely when the injuries are serious or when the driver has any prior DUI history, and prosecutors do not need broken bones or hospitalization to charge it as a felony.

DUI Causing Death

A fatal DUI triggers the most severe charges. Gross vehicular manslaughter while intoxicated carries four, six, or ten years in state prison, and jumps to 15 years to life if the driver has a prior DUI or vehicular manslaughter conviction. Ordinary vehicular manslaughter while intoxicated, without gross negligence, is a wobbler punishable by up to one year in county jail or 16 months, two, or four years in state prison.¹³

In the most extreme cases, prosecutors file second-degree murder charges, known as a “Watson murder” after the 1981 California Supreme Court decision People v. Watson. The theory is implied malice: the driver knew impaired driving was dangerous to human life and did it anyway. That knowledge is typically established through a Watson advisement, a written warning signed during a prior DUI case stating that drunk driving is inherently life-threatening. A signed advisement in your file gives prosecutors the evidence they need to prove conscious disregard for human life. A second-degree murder conviction carries 15 years to life in state prison.

Aggravating Factors That Can Sharpen the Sentence

Even when a DUI stays a misdemeanor, certain facts about the stop push the penalties above the baseline.

A BAC of 0.15% or higher is a statutory sentencing factor that lets the court deny probation or impose stricter terms.¹⁴
Driving with a child under 14 in the vehicle adds mandatory, non-suspendable jail time: 48 continuous hours on a first, 10 days on a second, 30 days on a third. A separate child endangerment charge under Penal Code 273a is also possible.¹⁵¹⁶
Driving 30 mph or more over the freeway limit, or 20 mph or more over on other roads, while also driving recklessly during a DUI adds a mandatory 60 consecutive days in county jail.¹⁷
Refusing a chemical test after a lawful arrest triggers an administrative license action of its own (one year for a first refusal, two years with one prior, three years with two or more) and works as the same sentencing factor as a high BAC.¹⁸

What Changes When It’s a Felony

Firearm Rights

A felony DUI conviction ends your right to own or possess firearms in California. Penal Code 29800 makes it a separate felony for anyone with a felony conviction to have a firearm, and the ban is permanent unless the conviction is later reduced to a misdemeanor.¹⁹ A misdemeanor DUI does not trigger a firearms ban.

Commercial Driver’s Licenses

Commercial drivers face a consequence that doesn’t track the felony/misdemeanor line at all. Under federal regulations, any DUI conviction is a major offense that disqualifies you from operating a commercial motor vehicle for at least one year, even if the DUI happened in your personal car. A second major offense is a lifetime CDL disqualification.²⁰ Because commercial drivers are already subject to a 0.04% BAC limit, a reading well under 0.08% in a commercial vehicle can produce both a criminal charge and the federal disqualification.¹

Expungement

California’s expungement process under Penal Code 1203.4 lets you withdraw your plea and have the case dismissed after completing probation. DUI convictions are eligible, but the court has discretion to grant or deny the petition, unlike most other offenses where relief is close to automatic. An unpaid restitution order does not disqualify you from applying.²¹ A 1203.4 dismissal does not erase the conviction from your DMV record, and the prior still counts within the ten-year lookback if you pick up another DUI.

Employment, Housing, and Border Crossings

A felony DUI can complicate background checks for jobs and housing for years, even after a 1203.4 dismissal. Professional licensing boards for nurses, teachers, lawyers, and other regulated occupations often require disclosure and can impose their own discipline. Canada treats impaired driving as a serious criminal offense and can deny entry to anyone with a DUI conviction, including a U.S. misdemeanor; you generally have to wait at least five years after completing your entire sentence before applying for criminal rehabilitation to regain the ability to enter the country.

The DMV Runs on Its Own Clock

Whether your case is a misdemeanor or felony, the DMV opens a separate track the moment you’re arrested. The officer takes your license, issues a temporary permit, and the DMV begins an Administrative Per Se action against your driving privileges.²² You have ten days from the arrest date to request a hearing challenging that suspension. Miss the window and the suspension takes effect automatically, usually 30 days after the arrest, independent of anything that happens in criminal court.

1
California Legislative Information. California Code VEH 23152 – Offenses Involving Alcohol and Drugs
2
California Legislative Information. California Code VEH 23136 – Persons Under 21 With BAC of 0.01 Percent or Greater
3
Barrister Press. AB 1950 – Length of Felony and Misdemeanor Probation
4
California Legislative Information. California Code VEH 23536 – First DUI Offense Penalties
5
California Legislative Information. California Code VEH 13352 – Suspension or Revocation of Driving Privilege
6
California Department of Motor Vehicles. DUI First Offenders Alcohol Involved Non-Injury 21 and Older
7
California Legislative Information. California Code VEH 23575.3 – Ignition Interlock Device Requirements
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California Legislative Information. California Code VEH 23540 – Second DUI Offense Penalties
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California Legislative Information. California Code VEH 23546 – Third DUI Offense Penalties
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California Legislative Information. California Code VEH 23550.5 – Fourth and Subsequent DUI Offense Penalties
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California Legislative Information. California Code VEH 23153 – Offenses Involving Alcohol and Drugs Causing Injury
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California Legislative Information. California Code VEH 23554 – First DUI Causing Injury Penalties
13
California Legislative Information. California Code PEN 191.5 – Vehicular Manslaughter While Intoxicated
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California Legislative Information. California Code VEH 23578 – High BAC Enhancement
15
California Legislative Information. California Code VEH 23572 – Child Passenger Enhancement
16
California Legislative Information. California Code PEN 273a – Abandonment and Neglect of Children
17
California Legislative Information. California Code VEH 23582 – Excessive Speed Enhancement
18
California Legislative Information. California Code VEH 23612 – Implied Consent and Chemical Testing
19
California Legislative Information. California Code PEN 29800 – Felon in Possession of Firearm
20
CSA. 6.2.5 Disqualification of Drivers (383.51)
21
California Legislative Information. California Code PEN 1203.4 – Dismissal After Probation
22
California Department of Motor Vehicles. Driving Under the Influence