California Alcohol Laws: DUI, Open Container, and Under 21

California alcohol laws set the drinking age at 21, restrict when and where alcohol can be sold, make it illegal to drive with a blood alcohol concentration of 0.08% or higher, ban open containers in the passenger area of a vehicle, and impose criminal penalties on any adult who gives alcohol to someone underage. The state’s Department of Alcoholic Beverage Control (ABC) licenses every business that sells or serves alcohol and enforces the rules alongside local police and the DMV.

Who Can Sell Alcohol and When

Any business that sells alcohol in California needs a license from the ABC. The two broad categories are on-sale licenses, which let customers drink on the premises, and off-sale licenses, which cover sealed packaged products meant to be consumed elsewhere.¹ Sellers must check ID on anyone who looks like they could be under 21 and can refuse service to anyone who cannot produce valid identification.²

Every licensed business must stop selling and serving between 2:00 a.m. and 6:00 a.m. The restriction applies to bars, restaurants, and retail stores alike, and it is also a misdemeanor for a customer to knowingly buy alcohol during those hours.³ A conviction can mean up to six months in county jail and a fine of up to $1,000, and the ABC can separately suspend or revoke the establishment’s license.

Public Drinking and Open Containers in Vehicles

There is no single statewide ban on drinking in public. Cities and counties set their own rules, and most prohibit drinking on public streets, sidewalks, and in parks unless a specific event like a street fair has been licensed to allow it. A violation is typically an infraction that results in a citation and a fine.

The statewide rule covers vehicles. The registered owner, and any driver, is prohibited from keeping an opened or partially consumed alcoholic beverage in the passenger area. An opened container must go in the trunk. If the vehicle has no trunk, it must be stored in an area not normally occupied by the driver or passengers; the glove compartment does not count. Off-highway vehicles without a trunk must use a locked container, such as one secured with a padlock or key lock. The living quarters of a motorhome or camper are an exception.⁴ A violation is an infraction, and once court fees and penalty assessments are added to the base amount the fine can reach several hundred dollars.

DUI: BAC Limits and What Counts as Impaired

It is illegal in California to drive while impaired by alcohol, drugs, or any combination. It is separately illegal to drive with a BAC of 0.08% or higher, whether or not your driving looks impaired. Commercial drivers face a stricter limit of 0.04%.⁵

Drivers under 21 are held to a zero-tolerance standard. Any measurable BAC of 0.01% or greater is unlawful, and refusing the preliminary screening test alone can trigger a license suspension of one to three years.⁶

You can be convicted of DUI even if your BAC tests below 0.08%. If an officer observes unsafe driving, poor performance on field sobriety tests, or other evidence that alcohol impaired your ability to drive safely, that evidence alone can support a charge under the impairment prong of the statute.⁵

DUI Penalties

DUI penalties escalate sharply with each conviction within a ten-year window. All offenses also carry mandatory court fees and penalty assessments that push the actual amount owed well beyond the base fine.

First offense: 96 hours to six months in county jail (with at least 48 consecutive hours), a base fine of $390 to $1,000, and a six-month license suspension.⁷
Second offense within 10 years: 90 days to one year in county jail, a base fine of $390 to $1,000, and a two-year license suspension.⁸
Third offense within 10 years: 120 days to one year in county jail, a base fine of $390 to $1,000, and a three-year license revocation. The driver is designated a habitual traffic offender for three years.⁹
Fourth offense within 10 years: can be charged as a felony, with 180 days to one year in county jail or a term in state prison. The base fine remains $390 to $1,000, the license is revoked for four years, and the habitual traffic offender designation applies.¹⁰

The DMV also imposes a separate administrative suspension at the time of arrest, independent of what happens in court. A first arrest with a BAC of 0.08% or higher triggers a four-month administrative suspension. A second or subsequent arrest results in a one-year administrative suspension.¹¹ These sanctions run alongside any jail time, fines, or additional suspension the court orders after a conviction.

Repeat offenders and anyone whose DUI involved an injury must install an ignition interlock device (IID) on their vehicle. The IID is a breathalyzer wired into the ignition that prevents the engine from starting if it detects alcohol. Required installation runs one year for a second offense or a first offense with injury, two years for a third offense, and three years for someone with three or more priors. Drivers with a prior felony DUI face three years for a non-injury offense and four years if the new offense involves injury or vehicular manslaughter.¹²

Chemical Testing and the Cost of Refusing

By driving on California roads you are deemed to have already consented to a chemical test of your blood or breath if you are lawfully arrested on suspicion of DUI. Officers must tell you the consequences of refusing, but the choice between a blood or breath test is yours. If neither is available, a urine test may be required.¹³

Refusing does not help. The refusal itself leads to a longer administrative suspension than a failed test, and a later DUI conviction brings mandatory additional jail time and enhanced fines on top of the standard penalties. A first refusal triggers a one-year license suspension. A second refusal within ten years of a prior DUI-related offense brings a two-year revocation, and a third or subsequent refusal within ten years brings three years.¹³

Compare that to a first-time driver who takes the test and fails: a four-month administrative suspension. Refusing triples the penalty, with no option for a restricted license during that year.¹¹

Possession and Purchase by Anyone Under 21

Anyone under 21 who possesses alcohol on a public street, highway, or any place open to the public commits a misdemeanor. A first offense carries a $250 fine or 24 to 32 hours of community service. A second or subsequent offense raises the fine ceiling to $500 and the community service range to 36 to 48 hours, and a court can impose both.¹⁴

Attempting to buy alcohol from a licensed seller is treated less severely. It is an infraction, punishable by a $250 fine or 24 to 32 hours of community service.¹⁵

Furnishing Alcohol to Someone Under 21

Giving alcohol to anyone under 21 is a misdemeanor no matter where it happens: a house party, a park, a restaurant. A first offense carries a $1,000 fine that cannot be reduced or suspended, plus at least 24 hours of mandatory community service.¹⁶

The penalty jumps if the minor drinks and then causes great bodily injury or death to themselves or someone else. In that situation the adult who provided the alcohol faces six months to one year in county jail and a fine of up to $3,000, or both.¹⁶

Civil Lawsuits for Serving Alcohol

California is more protective of alcohol providers in civil court than many people expect. State law specifically says that furnishing alcohol is not the legal cause of injuries that result from intoxication. The drinker’s own decision to drink is treated as the cause. A bar, restaurant, or social host generally cannot be sued for serving an adult who later injures someone.¹⁷

One significant exception exists. A parent, guardian, or other adult who knowingly serves alcohol at their home to someone they know or should know is under 21 can be held civilly liable if that minor causes injury or death. The injured person, or the minor, can bring the claim. The exception applies only at the adult’s residence and only when the adult knew or should have known the person was underage.¹⁷

Criminal and civil consequences are separate. An adult who furnishes alcohol to a minor faces criminal penalties under the Business and Professions Code wherever it happens. The ability to sue that adult for money damages is limited to the residential scenario above.

Direct Shipping of Spirits to Consumers

Starting January 1, 2026, California allows craft distillers to ship spirits directly to consumers for the first time, through a new Type 94 Direct Shipper Permit. Both in-state and qualifying out-of-state distillers can apply, provided they produce no more than 150,000 gallons of distilled spirits per year and at least 65% of the total volume is manufactured by the licensee. The application fee is $125 and the permit itself costs $30. A sunset provision repeals the authorization on January 1, 2027, so permits issued are valid only for calendar year 2026.¹⁸

Shipments must go through a common carrier and are capped at 2.25 liters per consumer per day, strictly for personal use and not for resale. Every package must be conspicuously labeled as containing alcohol and must require the signature of someone 21 or older on delivery. Permit holders must keep records of all shipments and report their total California volume at year end. Shipping without a valid permit is a misdemeanor and can lead to suspension or revocation of the distiller’s license.¹⁸

1
Alcoholic Beverage Control. Licensing
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Alcoholic Beverage Control. Checking Identification
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California Legislative Information. California Business and Professions Code 25631
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California Legislative Information. California Vehicle Code 23225
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California Legislative Information. California Vehicle Code 23152
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California Legislative Information. California Vehicle Code 23136
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California Legislative Information. California Vehicle Code 23536
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California Legislative Information. California Vehicle Code 23540
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California Legislative Information. California Vehicle Code 23546
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California Legislative Information. California Vehicle Code 23550
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California DMV. Driving Under the Influence (DUI)
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California DMV. Statewide Ignition Interlock Device Pilot Program
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California Legislative Information. California Vehicle Code 23612
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California Legislative Information. California Business and Professions Code 25662
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California Department of Alcoholic Beverage Control. On-Sale Licensee Informational Guide – Minors
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California Legislative Information. California Business and Professions Code 25658
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California Legislative Information. California Civil Code 1714
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Alcoholic Beverage Control. Craft Distiller Direct Shipper Permit