CVC 23140(a) Under 21 DUI | What to Do After a Zero Tolerance Ticket
California Vehicle Code 23140(a) prohibits drivers under 21 from operating a vehicle with a blood alcohol concentration (BAC) of 0.01% or higher. This is California's zero-tolerance law for underage drinking and driving.
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California Vehicle Code ticket overview
This page explains CVC 23140(a) for California traffic tickets, including what the violation means, why the ticket may matter, and what a driver should review before deciding whether to pay or contest it.
ClerkHero helps California drivers prepare Trial by Written Declaration (TR-205) paperwork online when a written-defense path appears to fit. ClerkHero is not a law firm.
CVC 23140(a), also written as VC 23140(a) on many California traffic citations, is the Vehicle Code section for Under 21 DUI.
Quick answer
CVC 23140(a) Quick Answer
Got a Under 21 DUI ticket? See the likely cost, points, fix-it status, and best next step before you pay.
Estimated court cost
$197 to $229+ (varies by county)
DMV points
0 points
Fix-it eligible
No
Traffic school
Check details
Fight by mail
Depends
Includes estimated court assessments and possible fees. Actual court bail/fine may be lower and varies by county.
Best next step: Check your options before paying, especially if the total cost or court deadline is unclear.
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What to do right now
- 1Check the exact violation and court deadline.
- 2Compare the cost of paying against your available options.
- 3Save photos, receipts, and any proof.
- 4Compare the cost of paying versus fighting.
Also searched as
Drivers and courts may refer to this violation using any of these labels:
- VC 23140(a)
- VC23140(a)
- Vehicle Code 23140(a)
- California Vehicle Code 23140(a)
- CVC 23140(a)
Violation category
General Traffic
Base fine
$35
Estimated total cost
$197 to $229+ (varies by county)
DMV points
0 points
What is California Vehicle Code CVC 23140(a)?
CVC 23140(a) enforces a strict zero-tolerance policy for drivers under 21, making it illegal to drive with any measurable alcohol in your system (0.01% BAC or more). Unlike adult DUI laws that use a 0.08% threshold, this law means even a single drink, mouthwash, or certain medications can trigger a violation. The consequences include license suspension, fines, and potential long-term impacts on insurance and driving privileges.
Common scenarios
Scenario 1
You had one glass of wine at a family dinner, then drove home and were stopped at a DUI checkpoint where a PAS test showed 0.02% BAC.
What to do: Save evidence immediately and compare the cost of paying against fighting by written declaration.
Scenario 2
You used alcohol-based mouthwash before driving to a friend's house and were pulled over for a broken taillight. The officer smelled alcohol and administered a breath test.
What to do: Save evidence immediately and compare the cost of paying against fighting by written declaration.
Scenario 3
You were the designated driver but took a small sip of beer at a party. On the way home, you were stopped for speeding and the officer requested a PAS test.
What to do: Save evidence immediately and compare the cost of paying against fighting by written declaration.
Key facts
- CVC 23140(a) applies only to drivers under 21 and sets a BAC limit of 0.01% or higher, far...
- A violation results in an automatic one-year license suspension by the DMV, but it is not a criminal...
- You have only 10 calendar days from the violation date to request a DMV administrative hearing to contest...
- The total fines and fees typically range from $197 to $229 or more, and your insurance rates may...
- Even trace amounts of alcohol from mouthwash, medication, or a single sip can trigger a violation under this...
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- what happens if you get a DUI under 21
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Fine breakdown for CVC 23140(a)
Fine breakdown for CVC 23140(a)
| Category | Estimated amount |
|---|---|
| Base fine | $35 |
| Court add-ons (varies by county) | $162 to $194+ |
| Total estimated out-of-pocket | $197 to $229+ (varies by county) |
Official county court examples suggest a $35 base fine often turns into about $197 to $229+ once penalty assessments and court fees are added.
Includes estimated court assessments and possible fees. Actual court bail/fine may be lower and varies by county.
A conviction can also raise insurance costs over time.
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What happens if you ignore this ticket?
- - The court can add late fees.
- - The case may be sent to collections.
- - DMV or registration issues may follow.
- - A fixable ticket can become more expensive.
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Detailed guide
What is California Vehicle Code 23140(a)?
California Vehicle Code 23140(a) makes it illegal for anyone under 21 years old to drive a vehicle with a blood alcohol concentration (BAC) of 0.01% or higher. This is known as California's zero-tolerance law for underage drinking and driving.
Unlike the standard DUI law for adults (which uses a 0.08% BAC threshold), CVC 23140(a) applies a much stricter standard. Even trace amounts of alcohol can result in a violation. This means a single sip of beer, wine, or liquor before driving can lead to serious consequences.
Why California Has Zero Tolerance for Drivers Under 21
California law recognizes that alcohol impairs judgment, reaction time, and driving ability. Because drivers under 21 are both legally prohibited from drinking and statistically more likely to be involved in alcohol-related crashes, the state enforces this strict policy.
The zero-tolerance approach serves as both a deterrent and a safety measure. It sends a clear message: if you're under 21, any alcohol and driving do not mix.
How Officers Detect Violations of CVC 23140(a)
Law enforcement typically discovers potential violations during traffic stops. An officer may pull you over for a traffic violation, equipment problem, or sobriety checkpoint. If the officer suspects you've been drinking, they will likely ask you to take a preliminary alcohol screening (PAS) test.
The PAS test is a handheld breathalyzer device that measures your BAC on the spot. For drivers under 21, California law requires you to submit to this test if lawfully requested. Refusing the test can result in automatic penalties, including a one-year license suspension.
Officers may also observe physical signs such as the smell of alcohol, red or watery eyes, slurred speech, or open containers in the vehicle. These observations can provide probable cause for testing.
Penalties and Consequences
Administrative Penalties (DMV)
A CVC 23140(a) violation triggers an automatic one-year driver's license suspension through the California Department of Motor Vehicles (DMV). This is an administrative action, not a criminal conviction.
If you are under 18, the suspension lasts one year or until you turn 18, whichever period is longer. The DMV handles this suspension separately from any court proceedings.
You have only 10 calendar days from the date of your arrest or citation to request a DMV administrative hearing. Missing this deadline means the suspension takes effect automatically, typically 30 days after the violation date.
Financial Penalties
The base fine for CVC 23140(a) is $100. However, with penalty assessments, court fees, and administrative costs, the total amount you pay can reach $197 to $229 or more, depending on your county.
These costs do not include potential increases in insurance premiums, which can be substantial and last for several years.
Additional Requirements
Depending on the circumstances and whether you have prior offenses, you may be required to:
- Complete an alcohol education or treatment program
- Install an ignition interlock device (IID) on your vehicle
- Perform community service
- Attend court hearings
These requirements vary based on your age, prior record, and whether additional charges were filed.
CVC 23140(a) vs. Other DUI Charges
It's important to understand that CVC 23140(a) is not the same as a standard DUI under CVC 23152.
CVC 23140(a) is typically an infraction or administrative violation. It does not result in a criminal conviction on your record, though it does appear on your DMV driving record.
CVC 23152 charges (standard DUI) are criminal offenses that can result in misdemeanor or felony convictions, jail time, probation, and more severe penalties.
However, if your BAC was 0.05% or higher, or if there were aggravating factors (such as an accident, injury, or reckless driving), you may face both CVC 23140(a) administrative penalties and separate criminal DUI charges under CVC 23152 or CVC 23153.
Because these situations can become complex and carry serious consequences, you should strongly consider consulting a licensed attorney if you face multiple charges or criminal DUI allegations.
What to Check on Your Citation
When you receive a citation for CVC 23140(a), carefully review the following:
- Your age at the time of the violation: This law only applies to drivers under 21
- The BAC reading: Confirm the reported BAC level and the time it was measured
- The date and time of the stop: Note when the stop occurred and when the test was administered
- The officer's name and badge number: You may need this information for your defense
- The court date and location: Missing your court date can result in additional penalties, including a warrant
- Whether you received a temporary license: The pink temporary license is valid for 30 days
Keep all paperwork in a safe place. You will need it for your DMV hearing and any court proceedings.
Evidence to Gather
Building a strong defense requires collecting evidence as soon as possible. Consider gathering:
- Witness statements: If passengers or bystanders observed the stop, their accounts may be helpful
- Photos or video: Document the location, road conditions, lighting, and any relevant circumstances
- Receipts and records: If you consumed food, beverages, or medication before driving, keep receipts and packaging
- Medical records: Certain medical conditions or medications can affect BAC readings or cause symptoms that mimic intoxication
- Calibration and maintenance records: PAS devices must be regularly calibrated and maintained; these records can be requested
- Your own timeline: Write down everything you remember about the stop, including what you ate, drank, and did before driving
The sooner you collect this evidence, the more accurate and useful it will be.
Your Options Before Paying
Paying the fine is essentially an admission of guilt. Before you pay, understand your options:
1. Request a DMV Administrative Hearing
You have 10 days to request a hearing to contest the license suspension. At this hearing, you can challenge:
- Whether the officer had reasonable cause to stop you
- Whether the officer had reasonable cause to believe you were under 21 and had been drinking
- Whether you were properly advised of your rights and the consequences of testing
- Whether the PAS device was functioning properly and the test was administered correctly
- Whether your BAC was actually 0.01% or higher at the time you were driving
The DMV hearing is separate from any court case. You can win the DMV hearing and still face court penalties, or vice versa.
2. Contest the Citation in Court
You can plead not guilty and request a trial. California allows Trial by Written Declaration for many traffic violations, but given the complexity and consequences of CVC 23140(a), an in-person hearing may be more appropriate.
At trial, the prosecution must prove:
- You were driving a vehicle
- You were under 21 years old
- Your BAC was 0.01% or higher
If any element cannot be proven, you may prevail.
3. Negotiate or Seek a Reduction
In some cases, it may be possible to negotiate with the prosecutor for a reduced charge or alternative penalties. This depends on the specific facts of your case, your prior record, and local court policies.
4. Consult a Licensed Attorney
Because CVC 23140(a) violations can lead to license suspension, insurance increases, and potential impacts on college admissions or employment, consulting with a DUI attorney is often worthwhile. An attorney can:
- Review the evidence and identify weaknesses in the prosecution's case
- Represent you at the DMV hearing and in court
- Negotiate on your behalf
- Advise you on the best strategy for your situation
Important: If your case involves criminal DUI charges, a suspended license, or other high-risk factors, you should strongly consider seeking licensed legal advice. ClerkHero may not handle all case types, especially those involving criminal charges or complex legal issues.
Common Defenses to CVC 23140(a)
Several defenses may apply depending on the facts of your case:
Inaccurate BAC Test
PAS devices can produce inaccurate readings due to:
- Improper calibration or maintenance
- Mouth alcohol contamination (from mouthwash, breath spray, or recent drinking)
- Residual alcohol in the mouth from food or beverages
- Interference from certain substances or medical conditions
- Operator error
If the test was not administered correctly or the device was not properly maintained, the results may be unreliable.
Rising Blood Alcohol
Alcohol takes time to absorb into your bloodstream. Your BAC may have been below 0.01% while you were actually driving but rose above that level by the time you were tested. This is known as the "rising blood alcohol" defense.
No Probable Cause for the Stop
The officer must have a valid legal reason to stop your vehicle. If the stop was unlawful, any evidence obtained afterward may be inadmissible.
You Were Not Driving
The law requires that you were driving or in actual physical control of the vehicle. If you were a passenger, or if the vehicle was parked and you were not in control, you may have a defense.
Lack of Evidence
The prosecution must prove every element of the violation. If there is insufficient evidence that your BAC was 0.01% or higher, or that you were under 21, the case may be dismissed.
Impact on Insurance and Your Record
A CVC 23140(a) violation will appear on your DMV driving record for 10 years. Insurance companies review your driving record when setting rates, and a violation can cause your premiums to increase significantly.
Some drivers see their rates double or triple. The increase typically lasts for three to five years, though it can vary by insurer.
While CVC 23140(a) is not a criminal conviction, the license suspension and the violation itself are visible to:
- Insurance companies
- Colleges and universities
- Employers who review driving records
- Scholarship programs
- Military recruiters
Some college applications ask about disciplinary actions or license suspensions. You may need to disclose the violation and explain the circumstances.
Traffic School and Trial by Written Declaration
Traffic school is generally not available for CVC 23140(a) violations. Traffic school is typically an option for minor moving violations, not alcohol-related offenses.
Trial by Written Declaration is a process that allows you to contest certain traffic tickets by mail without appearing in court. However, given the seriousness of CVC 23140(a) and the need for a DMV hearing, this option may not be practical or available for this violation. Consult with a legal professional to determine the best approach.
DMV Points
CVC 23140(a) does not add points to your driving record in the traditional sense. However, the one-year license suspension has a significant impact on your driving privileges.
If you are also convicted of other violations (such as a standard DUI under CVC 23152), those convictions will add points and carry additional penalties.
Steps to Take After Receiving a CVC 23140(a) Citation
- Read your citation carefully and note all deadlines, especially the 10-day DMV hearing request deadline.
- Request a DMV hearing immediately to preserve your right to contest the suspension.
- Gather evidence as described above.
- Do not discuss your case on social media or with anyone other than your attorney.
- Consider consulting a licensed DUI attorney, especially if you face additional charges or have questions about your rights.
- Attend all required hearings and court dates. Missing a date can result in additional penalties and a warrant for your arrest.
- Explore your options before simply paying the fine and accepting the penalties.
What Happens If You Do Nothing
If you do not request a DMV hearing within 10 days, the license suspension will take effect automatically 30 days after the violation. If you do not appear in court or respond to the citation, the court may:
- Issue a warrant for your arrest
- Suspend your license
- Add additional fines and fees
- Report a failure to appear, which can have serious consequences
Ignoring the citation will not make it go away. Taking action promptly gives you the best chance of a favorable outcome.
Final Thoughts
A CVC 23140(a) citation is serious, but it is not the end of the road. Many drivers successfully contest these violations or minimize the consequences by taking prompt, informed action.
Understand your rights, gather evidence, meet all deadlines, and consider professional legal guidance. Whether you choose to fight the citation or accept responsibility, make sure you fully understand the consequences and your options.
If your case involves criminal charges, a suspended license, or other complicating factors, seeking licensed legal advice is strongly recommended. ClerkHero may not handle all case types, particularly those involving criminal DUI charges or high-risk situations.
Taking the right steps now can protect your driving privileges, your record, and your future.
Decision point
Is it worth challenging this ticket?
Compare paying now against checking your available options, including points and insurance risk.
Common defenses
Defense ideas to review if written declaration is available
Every ticket is different. These issues can help you organize facts, evidence, and questions before deciding whether to pay, correct the issue, or check eligibility.
Defense 1
The PAS device was not properly calibrated or maintained, leading to an inaccurate BAC reading.
Defense 2
Mouth alcohol from mouthwash, breath spray, food, or recent drinking contaminated the test results.
Defense 3
Your BAC was below 0.01% while driving but rose to that level by the time the test was administered (rising blood alcohol defense).
Defense 4
The officer lacked probable cause to stop your vehicle or to request a BAC test.
Defense 5
You were not actually driving or in physical control of the vehicle at the time of the alleged violation.
Defense 6
The test was improperly administered or the officer did not follow proper procedures, making the results unreliable.
More resources for CVC 23140(a)
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Frequently asked questions about CVC 23140(a)
What is the BAC limit for drivers under 21 in California?
California Vehicle Code 23140 sets a zero-tolerance limit of 0.01% BAC or higher for drivers under 21. This is far lower than the 0.08% limit for adults and means even a small amount of alcohol can trigger a violation. The law applies to any detectable alcohol in your system, which can result from a single drink, mouthwash, or certain medications. Officers typically use preliminary alcohol screening (PAS) devices during the stop to measure BAC on the spot.
What are the penalties for a CVC 23140 violation?
A first offense under CVC 23140 results in a one-year driver's license suspension by the DMV, not a criminal conviction. There is no jail time, but you may face a $100 base fine plus penalty assessments that can total $197 to $229 or more, depending on your county. If you're under 18, the suspension lasts one year or until you turn 18, whichever is longer. This is an administrative action separate from any criminal DUI charges that might also be filed if your BAC was higher or other factors were present.
Can I challenge the license suspension after an Under 21 DUI?
Yes, you have 10 days from the date of arrest to request a DMV administrative hearing to contest the suspension. At this hearing, you can challenge whether the officer had reasonable cause to stop you, whether the PAS test was properly administered, and whether the results were accurate. Common defenses include rising blood alcohol (you weren't over the limit while driving), mouth alcohol contamination, or device calibration errors. Missing the 10-day deadline means the suspension takes effect automatically, so acting quickly is critical.
Will an Under 21 DUI affect my insurance or college applications?
A CVC 23140(a) violation appears on your DMV driving record and will likely cause your insurance rates to increase significantly, sometimes doubling or tripling for several years. While it's not a criminal conviction, the license suspension is visible to colleges, employers, and scholarship programs that review driving records. Some colleges ask about disciplinary actions or license suspensions on applications, and you may need to disclose it. The violation stays on your driving record for 10 years, though the suspension itself ends after one year if you complete all requirements.
More FAQs about CVC 23140(a)
Can I get a DUI if I only had one drink?
Yes. For drivers under 21, even a small amount of alcohol can lead to a violation because the legal limit is 0.01% BAC. A single drink, or even mouthwash or certain medications containing alcohol, can put you over this threshold. The zero-tolerance law is designed to prohibit any measurable alcohol in your system while driving. If you are stopped and test at or above 0.01%, you can be cited under CVC 23140(a) regardless of how little you consumed.
What if I wasn't driving but was in the car with alcohol in my system?
You can still receive a citation if the officer believes you were in actual physical control of the vehicle, even if it was parked. Factors such as whether the engine was running, where you were sitting, and whether you had the keys can influence this determination. However, if you were clearly a passenger and not in control of the vehicle, you may have a valid defense. The specific facts matter, so document the circumstances and consider consulting an attorney.
Should I talk to a lawyer about my CVC 23140(a) citation?
It's often a good idea to consult with a licensed DUI attorney, especially given the consequences of license suspension and potential insurance increases. An attorney can review the evidence, identify weaknesses in the case, represent you at the DMV hearing and in court, and advise you on the best strategy. If your case involves criminal DUI charges, a suspended license, or other high-risk factors, seeking legal advice is strongly recommended. ClerkHero may not handle all case types, particularly those involving criminal charges.
Can I refuse the BAC test if I'm under 21?
Refusing a preliminary alcohol screening (PAS) test when you are under 21 can result in automatic penalties, including a one-year license suspension under California's implied consent law. The consequences of refusal are often similar to or worse than the consequences of testing over the limit. Before refusing, understand that refusal does not prevent the DMV from suspending your license and may be used against you in court. If you have already refused, consult an attorney immediately to understand your options.
What should I do first after getting a CVC 23140(a) ticket?
Your first priority is to request a DMV administrative hearing within 10 days of the violation date. This preserves your right to contest the license suspension. Next, carefully review your citation for accuracy and note all deadlines. Gather evidence such as witness statements, receipts, photos, and any documentation related to what you consumed before driving. Consider consulting a licensed attorney to discuss your options and build a defense. Do not ignore the citation or miss any court dates, as this will result in additional penalties.
What is VC 23140(a)?
VC 23140(a) is another way California courts and citations may refer to CVC 23140(a) for Under 21 DUI. VC means Vehicle Code, while CVC means California Vehicle Code.
Is VC 23140(a) the same as CVC 23140(a)?
Yes. On California traffic tickets, VC and CVC can refer to the same California Vehicle Code section. VC23140(a) is the compact version of VC 23140(a).
Can I fight a VC 23140(a) ticket?
You may be able to contest it depending on the facts, evidence, and court process. ClerkHero can help eligible California drivers prepare self-help documents for review.
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Official sources
ClerkHero uses official California court and DMV resources where available.
- California Courts Form TR-205
Official Trial by Written Declaration form used for eligible California traffic infractions.
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- Tuolumne County Traffic Court fee example