

At The Law Offices of Frances Prizzia, our Orange County DUI attorney knows that implied consent laws are serious for every driver in California. Driving is a privilege, not a right, and refusing a breathalyzer test or other chemical test can lead to severe penalties. What happens if a driver refuses a blood or breath test? This guide explains the implied consent law, penalties for refusing a BAC test, administrative license suspension, and how we can help protect your driver’s license and legal rights.
Implied consent laws, as outlined in California Vehicle Code Section 23612, establish a legal agreement between the state and the driver. By obtaining a driver’s license, a person consents to submit to chemical breath tests, blood tests, urine tests, or preliminary alcohol screening tests if arrested for DUI.
The purpose is to ensure law enforcement officers can measure a driver’s blood alcohol concentration or THC concentration quickly and reliably. Refusing a chemical test triggers BAC test refusal penalties, which may include administrative license revocation or suspension. At The Law Offices of Frances Prizzia, we help drivers understand their rights and obligations under the implied consent law and prepare for hearings with a hearing officer when needed.
The state’s primary goal is to maintain road safety and prevent accidents caused by impaired drivers. Implied consent laws allow law enforcement to collect evidence when officers have probable cause to believe a driver’s alcohol concentration or THC concentration exceeds the legal limit. This law discourages refusal of chemical breath tests or blood draws.
It also ensures that officers can obtain accurate breathalyzer test results, preliminary breath tests, or warrantless blood tests. By enforcing compliance, the law helps reduce crashes and protect motorists, passengers, and pedestrians.
Implied consent applies after a lawful arrest by a peace officer who has probable cause to suspect that a driver is under the influence of alcohol or drugs. It does not apply to preliminary roadside screenings, such as preliminary alcohol screening tests or field sobriety checks. The law comes into effect when officers request blood or breath tests as part of DUI investigations.
Drivers who refuse chemical breath tests, blood tests, or urine tests face administrative license suspension and other penalties. Knowing the exact point when implied consent applies is critical to protecting your driver’s license, especially if you hold a non-resident driver’s license or have an ignition interlock driver’s license.

At The Law Offices of Frances Prizzia, we understand that refusing a breathalyzer test is considered a separate offense from a DUI. Even if the driver is never convicted of DUI, refusal triggers automatic penalties from the DMV. These penalties often include administrative license suspension and other requirements for license reinstatement.
The offense applies to all drivers, including those with a non-resident driver’s license or an ignition interlock driver’s license. It is essential to act promptly and understand the implied consent notice and the steps to protect your driver’s license.
Key consequences of refusing a breathalyzer test include:
Refusing a chemical breath test usually results in an automatic suspension. A first refusal typically results in a one-year suspension, while subsequent refusals may lead to longer suspensions. This is an administrative action taken by the DMV, separate from any criminal case. We help drivers meet their license reinstatement requirements and explore options, such as an ignition interlock device, if needed.
If a driver is later convicted of DUI, the refusal can lead to stricter penalties. This may include mandatory jail time, longer DUI programs, and higher fines. Breath alcohol tests or blood alcohol content results become key evidence. We guide clients on how refusal affects both regular and ignition interlock driver’s licenses to minimize the long-term impact on their driving privileges.
Refusal of a breathalyzer test triggers a separate administrative process at the DMV. Drivers have only 10 days from receiving the implied consent notice to request a DMV hearing. Missing this deadline usually means that the license suspension will start automatically.
A hearing officer reviews the case, including whether law enforcement officers followed proper procedures for blood or breath tests. We represent clients in these hearings, ensuring all license reinstatement requirements are addressed and exploring defenses to reduce or remove administrative license suspension. Quick action is essential to protect the driver’s license and prevent long-term restrictions.

At The Law Offices of Frances Prizzia, we know that deciding whether to refuse a breathalyzer test is complicated. Refusal may sometimes weaken the prosecution’s evidence if BAC results are unavailable. On the other hand, refusal triggers automatic penalties, including administrative license suspension, and can be used against the driver in court.
This applies to all drivers, including those with a non-resident driver’s license or an ignition interlock driver's license. There is no one-size-fits-all answer, and the best decision depends on the specific situation, legal strategy, and the particular facts of the case.
Key strategic points to consider:
Even if a driver is accused of refusing a chemical breath test, the allegation can sometimes be challenged. At The Law Offices of Frances Prizzia, we review the arrest, implied consent notice, and BAC test procedures. An experienced attorney can identify flaws in how law enforcement enforced the implied consent law.
If the peace officer lacked legal justification for the stop or arrest, the implied consent law may not apply. Without probable cause, the request for blood or breath tests can be challenged. This can affect both administrative license suspension and criminal DUI charges.
We review the officer’s report and questioning to determine if the arrest was valid. Drivers with a non-resident driver’s license or a regular driver’s license may benefit from this defense to protect their privileges.
Another defense occurs if the law enforcement officer failed to advise the driver of the consequences of refusal correctly. Drivers must be informed of the penalties for refusing a BAC test and the rules governing administrative license suspension. A driver may also be excused if they are unable to understand the warning due to a medical condition.
We carefully examine the implied consent notice and officer statements. This defense can help maintain the driver’s license or eligibility for an ignition interlock driver's license.

Fighting a breathalyzer refusal charge involves two separate battles: the DMV process and criminal court. At The Law Offices of Frances Prizzia, we guide drivers through both, ensuring all deadlines and requirements are met. An attorney can build a strong defense, challenge improper procedures, and protect your driver’s license.
We also assist with options such as an ignition interlock driver's license or a non-resident driver’s license. Having legal representation is critical to protect long-term driving privileges and avoid unnecessary penalties.
Can I refuse a preliminary roadside breath test?
Yes, the handheld preliminary alcohol screening (PAS) test is generally voluntary. Exceptions apply if you are under 21 or currently on DUI probation. We explain the consequences and your options in these situations.
What if I have a medical condition that prevents me from taking a breath test?
You must inform the law enforcement officer immediately. They should offer an alternative, such as a blood test. A valid medical reason can serve as a defense to a refusal charge, which we help present.
How long do I have to contact a lawyer after a DUI arrest?
You have only 10 days from the arrest to request a DMV hearing to save your driver’s license. Contacting a lawyer promptly is crucial to meet administrative deadlines and protect your rights.
Can I change my mind after initially refusing?
It is possible to agree to a test after initially refusing to do so. However, the officer is not required to wait. Acting quickly may reduce penalties, but the initial refusal may still be considered a violation.
Does implied consent apply to blood tests as well?
A: Yes, implied consent applies to both breath and blood tests. Refusing a blood test after a lawful arrest triggers the same administrative license suspension and penalties as a breathalyzer refusal.
What is the difference between a DMV suspension and a court suspension?
A DMV suspension is administrative and relates to the refusal itself. A court suspension happens if you are convicted of DUI. Both can apply simultaneously, and we assist drivers in navigating each process carefully.

Refusing a breathalyzer test can have severe and immediate consequences for your driver’s license. The 10-day deadline to request a DMV hearing is critical. At The Law Offices of Frances Prizzia, we guide you through both DMV and court processes to protect your license and long-term driving privileges. Do not risk your future by handling this alone. Contact us today for a free and confidential case evaluation, and we will begin building a defense strategy immediately.

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