CVC 23152(b): Driving with 0.08% BAC or Higher | CA DUI Law

What is California Vehicle Code 23152(b)?

California Vehicle Code 23152(b) makes it unlawful for any person to drive a vehicle while having a blood alcohol concentration (BAC) of 0.08% or higher. This is known as a "per se" DUI law. The term "per se" means the prosecution does not need to prove you were actually impaired or driving dangerously. If your BAC measured 0.08% or above, that alone is sufficient for a conviction under this code.

This is a criminal offense, not a simple traffic ticket. A CVC 23152(b) charge appears on your criminal record and carries mandatory minimum penalties. The citation you received is the beginning of a criminal case that will proceed through criminal court, not traffic court.

How CVC 23152(b) Differs from CVC 23152(a)

California has two main DUI laws that often appear together on citations. CVC 23152(a) prohibits driving under the influence of alcohol, meaning driving while impaired by alcohol regardless of BAC. CVC 23152(b) prohibits driving with a BAC of 0.08% or higher, regardless of impairment.

You can be charged with both violations from the same incident. Prosecutors typically charge both because they provide two different paths to conviction. However, you can only be punished once, even if convicted of both counts.

What the Prosecution Must Prove

To convict you under CVC 23152(b), the prosecution must prove beyond a reasonable doubt that:

1. You drove a vehicle
2. At the time you were driving, your blood alcohol concentration was 0.08% or higher

The prosecution does not need to prove you were impaired, driving dangerously, or that anyone was endangered. The BAC measurement itself is the crime.

How BAC is Measured

Blood alcohol concentration is typically measured through:

Breath Tests: Officers use devices called breathalyzers or preliminary alcohol screening (PAS) devices at the roadside, and more sophisticated evidential breath machines at the station. These estimate BAC by measuring alcohol in your breath.

Blood Tests: A medical professional draws your blood, which is then analyzed at a laboratory. Blood tests are generally considered more accurate than breath tests but are subject to handling and storage requirements.

Urine Tests: Rarely used today, urine tests are the least accurate method and are typically only used when breath and blood tests are unavailable.

The test used for prosecution is usually the chemical test taken after arrest, not the preliminary roadside test.

Penalties for CVC 23152(b)

Penalties depend on whether this is your first offense or if you have prior DUI convictions within the past ten years.

First Offense

• Fines and penalty assessments typically totaling $1,800 to $2,800 or more
• Informal (summary) probation for three to five years
• DUI school (typically a three-month program)
• Six-month driver's license suspension (may be able to get a restricted license)
• Possible jail time up to six months (often not imposed on first offense with no aggravating factors)
• Installation of an ignition interlock device (IID) may be required or optional depending on county

Second Offense (within 10 years)

• Fines and assessments typically $1,800 to $2,800 or more
• Informal probation for three to five years
• DUI school (18-month or 30-month program)
• Two-year driver's license suspension
• Mandatory jail time: 96 hours to one year
• Installation of ignition interlock device for one year after license reinstatement

Third Offense (within 10 years)

• Fines and assessments typically $1,800 to $2,800 or more
• Informal probation for three to five years
• DUI school (30-month program)
• Three-year driver's license revocation
• Mandatory jail time: 120 days to one year
• Designation as a habitual traffic offender
• Installation of ignition interlock device for two years after license reinstatement

Fourth or Subsequent Offense

A fourth DUI within ten years can be charged as a felony. Felony DUI carries 16 months to three years in state prison, though it can also be charged as a misdemeanor at the prosecutor's discretion.

Enhanced Penalties and Aggravating Factors

Certain circumstances trigger enhanced penalties:

• BAC of 0.15% or higher
• Excessive speed (20+ mph over limit on surface streets, 30+ mph on highways)
• Refusal to take a chemical test
• Causing an accident
• Driving with a minor under 14 in the vehicle (additional charges under CVC 23572)
• Prior DUI convictions

DMV Administrative Hearing

When arrested for DUI, you face two separate proceedings: the criminal court case and a DMV administrative hearing. These are independent processes.

The DMV will automatically suspend your license unless you request a hearing within 10 days of your arrest. This deadline is strict. If you miss it, your license suspends automatically after 30 days.

The DMV hearing determines only whether your license will be suspended. It does not determine guilt in the criminal case. However, winning the DMV hearing does not dismiss the criminal charges, and losing the DMV hearing does not mean you will be convicted in criminal court.

What to Check on Your Citation

Carefully review your citation and any documents you received:

• The exact code section cited (23152(b) or both 23152(a) and (b))
• The date and time of the alleged offense
• The location where you were stopped
• The arresting officer's name and badge number
• Your court date (you must appear or have an attorney appear for you)
• Whether you received a temporary license (pink paper)
• Any BAC results listed on the citation or related paperwork

The citation serves as a temporary license for 30 days if your license was confiscated.

Evidence to Gather Immediately

Time is critical. Evidence disappears quickly. Gather and preserve:

• Any receipts from where you were before the stop (restaurants, bars, stores)
• Names and contact information of witnesses who were with you
• Photos of the location where you were stopped
• Your own written account of what happened while memory is fresh
• Any video footage from the stop (dashcam, nearby businesses, etc.)
• Medical records if you have conditions that might affect BAC testing (GERD, acid reflux, diabetes)
• Records of any medications you were taking
• Calibration and maintenance records for the breath testing device (obtained through discovery)
• Blood sample handling and storage records (obtained through discovery)

Your Options After Receiving a CVC 23152(b) Citation

You have several options, and the choice you make has significant consequences.

Option 1: Plead Guilty or No Contest

You can accept responsibility and plead guilty or no contest. This results in conviction and the penalties described above. You would typically do this only as part of a negotiated plea agreement that reduces charges or penalties.

Option 2: Fight the Charge

You have the right to contest the charge. This involves:

• Pleading not guilty at arraignment
• Reviewing all evidence through the discovery process
• Filing motions to suppress evidence if your rights were violated
• Potentially going to trial

Many DUI cases are won or favorably resolved before trial through successful motions or negotiation.

Option 3: Negotiate a Plea Bargain

Your attorney may negotiate with the prosecutor to:

• Reduce the charge to a lesser offense (such as "wet reckless" under VC 23103.5)
• Reduce penalties
• Avoid jail time
• Minimize license suspension

Plea bargains are common in DUI cases, especially when there are weaknesses in the prosecution's case.

Common Defenses to CVC 23152(b)

Several defenses may apply depending on your case facts:

Illegal Stop or Detention

Officers must have reasonable suspicion to stop your vehicle. If the stop was illegal, all evidence obtained afterward may be suppressed. Common issues include:

• No valid reason for the traffic stop
• Checkpoint not conducted according to legal requirements
• Prolonged detention without justification

Rising Blood Alcohol

Your BAC continues to rise for 30 to 90 minutes after your last drink. If you were tested long after driving, your BAC at the time of testing may have been higher than when you were actually driving. This is called the "rising blood alcohol" defense.

Mouth Alcohol Contamination

Breath tests measure alcohol in your breath, but they can be contaminated by:

• Recent use of mouthwash or breath spray
• Burping or regurgitation before the test
• Dental work that traps alcohol
• GERD or acid reflux

Proper testing protocol requires a 15-minute observation period before the breath test to avoid this issue.

Improper Test Administration

Chemical tests must follow strict protocols under California Code of Regulations Title 17. Violations include:

• Failure to observe you for 15 minutes before a breath test
• Improper calibration or maintenance of the breath machine
• Unqualified person administering the test
• Failure to offer a choice of blood or breath test

Blood Sample Issues

Blood tests are subject to contamination and fermentation if not properly handled:

• Improper storage temperature
• Delayed analysis
• Insufficient preservative or anticoagulant
• Contaminated blood draw equipment
• Break in chain of custody

Medical Conditions

Certain medical conditions can affect BAC test results:

• Diabetes (can cause false positives on breath tests)
• GERD or acid reflux (causes mouth alcohol)
• Auto-brewery syndrome (rare condition where body produces alcohol)
• Hypoglycemia

No Driving

The prosecution must prove you were driving. If you were found in a parked car, there may be insufficient evidence that you drove while over 0.08%.

Why You Should Not Just Pay the Fine

Unlike a simple traffic ticket, you cannot just "pay the fine" for a DUI. This is a criminal charge. If you plead guilty or are convicted:

• You will have a criminal record
• Your insurance rates will increase dramatically for years
• You will have a suspended license
• You must complete DUI school
• You may face jail time
• Future DUI offenses carry much harsher penalties
• Employment opportunities may be affected
• Professional licenses may be impacted
• You may face immigration consequences if not a U.S. citizen

A DUI conviction has long-term consequences beyond the immediate penalties.

Traffic School and Trial by Written Declaration

Traffic school is not available for DUI offenses. DUI is a criminal charge, not a civil traffic infraction.

Trial by Written Declaration (TWD) is also not available for DUI cases. TWD is only available for infraction-level traffic violations. DUI is a misdemeanor criminal offense that requires court appearances.

The Importance of Legal Representation

CVC 23152(b) is a serious criminal charge with life-altering consequences. The legal system is complex, and DUI law involves technical scientific evidence about BAC testing, absorption rates, and machine calibration.

An experienced DUI attorney can:

• Request and review all evidence including police reports, video footage, and test results
• Identify violations of your rights or improper procedures
• File motions to suppress evidence
• Challenge the accuracy and reliability of BAC tests
• Negotiate with prosecutors for reduced charges
• Represent you at the DMV hearing
• Prepare and present your defense at trial if necessary

Many people successfully fight DUI charges or achieve significantly reduced penalties with proper legal representation.

ClerkHero and DUI Cases

DUI cases are complex criminal matters that may require specialized legal representation. ClerkHero may not handle all DUI case types, particularly those involving accidents, injuries, high BAC levels, or prior offenses. You should strongly consider consulting with a licensed DUI attorney who can evaluate your specific situation and provide legal advice tailored to your case.

Next Steps

1. Request a DMV hearing within 10 days of your arrest to prevent automatic license suspension
2. Do not miss your court date listed on your citation
3. Gather and preserve evidence as described above
4. Consult with a DUI attorney to understand your options and build your defense
5. Do not discuss your case on social media or with anyone except your attorney
6. Consider the long-term consequences before making any decisions about your case

A CVC 23152(b) charge is serious, but you have rights and options. Taking prompt action and getting informed legal guidance gives you the best chance of a favorable outcome.