Under Florida driving under the influence (DUI) laws, those under 21 who drink and drive can face immediate administrative penalties. Florida’s zero tolerance policy & laws mean that nearly any registerable amount of alcohol can lead to the loss of a driver’s license, and higher alcohol blood levels or serious impairment can lead to criminal charges.
It’s important to understand how these laws work and how to protect your child’s future.
Understanding Florida’s Zero Tolerance Policy
Under Florida’s Zero Tolerance Law, it is against the law for someone younger than 21 to have a blood alcohol level (BAL) of 0.02% or higher and drive a motor vehicle. The typical BAL limit is 0.08% for most drivers on the road.
A law enforcement officer can detain a driver if the officer has probable cause to believe the driver is under 21 and under the influence of alcohol, or if the driver has any BAL or breath alcohol level in a test. After detainment, the officer can request a chemical blood or breath test to determine alcohol level.
In 2025, alcohol-only impaired crashes led to 276 fatalities and 2,741 injuries. The Zero Tolerance Law exists to discourage underage drinking and driving, given the significant danger it poses to everyone on the road.
The Consequences of the Zero Tolerance Law
A violation of the Zero Tolerance Law is not a traffic violation or a criminal offense, and the detainment is not the same as an arrest. However, there are still penalties, including the suspension of a driver’s license:
- First offense results in a six-month suspension
- First offense and refusal to submit to a breath test results in a one-year suspension
- Second offense results in a one-year suspension
- Second offense and breath test refusal results in an 18-month suspension
There are other potential penalties, too. For drivers with a blood-alcohol level of 0.05% or higher, they are required to take a substance abuse course and evaluation. The suspension of their driver’s license remains in place until the course is complete.
What Can You Do About a License Suspension?
A license suspension is automatic after a violation of the Zero Tolerance Law, but the suspension can still be contested within 10 days of the detainment and notice of suspension. A formal or informal hearing can be requested during this window. The driver also secures a temporary permit during those 10 days, 12 hours after the notice of suspension. It’s crucial to act quickly during this time to protect a driver’s license.
DUI Charges Under 21
Those under 21 could still face criminal charges for driving impaired. A DUI offense occurs when a person is driving or in physical control of a vehicle, and:
- The driver’s normal faculties are impaired by alcoholic beverages.
- The driver has a BAL of 0.08% or higher.
- The driver has a breath alcohol level of 0.08 per 210 liters of breath.
A driver is not required to be over the 0.08% BAL limit if there is proof that they were impaired.
If an underage driver meets the qualifications of a DUI offense, they can be charged with the criminal offense and all the same penalties as someone over 21. There were 24,246 arrests and 30,814 charges for DUIs in Florida in 2025. Of those offenses, 541 arrests and 693 charges impacted individuals aged 17 to 20.
A first-time DUI offense can result in penalties like:
- Between $500 and $1,000 in fines
- Up to six months imprisonment
A second offense can lead to more substantial penalties and the required installation of an ignition interlock device in a vehicle.
FAQs
What Is the Zero-Tolerance Law in Florida?
The Zero-Tolerance Law in Florida means that drivers under the age of 21 who have a blood alcohol level of 0.02% or higher face the immediate administrative action of a license suspension for six months. Repeat offenses lead to longer license suspensions. The penalties under this law are not infractions or criminal charges, but an underage driver could still be charged under DUI laws if their blood alcohol level was high enough or their driving was impaired.
How Much Can You Drink Before You Are Over the Legal Limit if You Are Under 21 in Florida?
If you are under 21, you are over the legal limit for driving in Florida if you have a blood alcohol level of 0.02% or higher. How much you can drink before you reach this level depends on how quickly you are drinking, the number of drinks you have, the percentage alcohol in each drink, your weight, and how much food you had prior to drinking.
What Is the Primary Purpose of Florida’s Zero Tolerance Law for Drivers Under 21?
The primary purpose of Florida’s Zero Tolerance Law for drivers under 21 is to prevent underage drivers from drinking and driving. Driving impaired can lead to serious collisions and often fatalities, and underage drinking can impact a person’s growth. The law exists to discourage both things. Alcohol possession is not legal for those under 21, and any level of impairment from a controlled substance is not legal for any driver, no matter their age.
Why Should You Hire a DUI Lawyer After a Zero-Tolerance Offense in Florida?
You should hire a DUI lawyer after a zero-tolerance offense in Florida because an attorney can help protect your child’s rights. They can help advocate for your child and challenge the license suspension. An attorney understands the administrative processes in these cases and can help you understand the options. They can also provide a defense if your child is being criminally charged for a DUI.
Manage Zero Tolerance Violations With a Florida DUI Attorney
If your child has been detained for Zero Tolerance Law violations or is facing DUI charges, an attorney can help. An experienced lawyer can challenge the license suspension and determine if there was probable cause to detain your child. Having legal representation can help you understand what options your child has.
At Atlas Defense Law, we have over two decades of legal experience and have handled over 50 criminal trials, including cases in the 20th Judicial Circuit Court in Lee County. We also have significant experience in juvenile cases, so we understand how overwhelming they can be for parents. Contact our team today.


