Minnesota takes a firm stance on underage drinking and driving—one that goes beyond the standard DWI laws that apply to adults. If you are under 21 and drive after consuming any amount of alcohol, you can face criminal penalties and lose your driving privileges under the state’s zero-tolerance framework. For parents and young drivers alike, understanding these laws is critical.
At Sieben Edmunds Miller, we represent young people and their families facing underage DWI charges throughout Minnesota. This guide explains the law, the consequences, and what options may be available.
Minnesota’s Zero Tolerance Law
Minnesota Statute § 169A.33 establishes a zero-tolerance policy for underage drinking and driving. Under this law, it is a misdemeanor for any person under the age of 21 to operate a motor vehicle after consuming alcohol, if there is any physical evidence of alcohol consumption present in the body. Unlike the standard DWI law that requires a BAC of 0.08 percent or higher, the underage law applies at any detectable level of alcohol. Blowing a 0.01 percent on a breathalyzer is enough for an underage driver to be charged.
This law is sometimes informally called the Not-A-Drop law, reflecting the state’s absolute prohibition on underage drivers having any alcohol in their system. The law exists alongside the standard DWI statute—meaning that an underage driver who exceeds a 0.08 BAC can be charged with both the standard DWI and the underage drinking and driving offense.
Underage DWI vs. Standard DWI: How the Laws Differ
The most significant difference between the underage zero-tolerance law and the standard DWI law is the BAC threshold. For adults over 21, the legal limit is 0.08 percent. For anyone under 21, any measurable amount is sufficient for a charge under the zero-tolerance law.
Another important distinction involves how these offenses are prosecuted and what happens to the driving record. A violation of the underage drinking and driving law, so long as it does not also violate the standard DWI statute, cannot be used as an enhancing factor for any subsequent DWI violation. This means a zero-tolerance offense alone will not count as a prior DWI for purposes of elevating a future charge to a higher degree or increasing license revocation times under the 20-year lookback enacted in 2025.
However, if the underage driver’s BAC is 0.08 or above, they are subject to the standard DWI law, and that conviction can count as a prior DWI for enhancement purposes in future cases.
Penalties for Underage Drinking and Driving
A conviction under Minnesota’s underage drinking and driving law carries the following consequences:
- Criminal penalty: A misdemeanor, punishable by up to 90 days in jail and a fine of up to $1,000.
- License suspension: 30 days for a first offense, or 180 days if the driver has a prior qualified impaired driving incident on their record.
- Impact on instruction permit or provisional license eligibility: A conviction restricts the driver’s ability to obtain an instruction permit, provisional license, or standard driver’s license.
For drivers between the ages of 16 and 17, offenses under the zero-tolerance law are prosecuted in juvenile court and are classified as major traffic offenses. Juvenile cases carry their own procedures and potential consequences, and having an attorney experienced in juvenile DWI matters is important.
When the Standard DWI Law Applies to Underage Drivers
An underage driver whose BAC is 0.08 percent or higher will be charged under the same DWI statute that applies to adult drivers. This means facing the four-degree classification system, with the potential for misdemeanor, gross misdemeanor, or felony charges depending on aggravating factors and prior history. For a young person, the long-term consequences of a DWI conviction—including impacts on college applications, professional licensing, and employment—can be severe.
The same aggravating factors that apply to adult DWIs also apply to underage drivers charged under the standard statute: a BAC of 0.16 percent or higher, a prior qualifying DWI incident, or having a child under age 16 in the vehicle.
Administrative Consequences and Driving Privileges
In addition to criminal penalties, an underage DWI conviction results in administrative action by the Department of Public Safety. A young driver’s license can be revoked for 90 days on a first offense, with the ability to apply for a limited license after the initial waiting period in some cases. Repeat offenders face significantly longer revocation periods.
For underage drivers who are still in the learning permit or provisional license stage, a DWI conviction can delay or prevent them from moving to the next stage of licensure. The state’s graduated licensing program has specific requirements, and DWI convictions can set those back significantly.
Defenses Available to Underage Drivers
Despite the low BAC threshold under the zero-tolerance law, there are still defenses available to underage drivers facing these charges. The same constitutional protections that apply to adult DWI defendants apply to minors: the traffic stop must have been lawful, the arrest must have been supported by probable cause, and any chemical testing must have been conducted in accordance with proper procedures.
Additionally, there may be questions about whether the physical evidence of alcohol consumption meets the legal standard, particularly in cases involving very low readings on testing devices that are subject to margin-of-error concerns.
Talk to a DWI Attorney Right Away
A DWI charge—even a zero-tolerance charge—is a serious matter for a young person, with consequences that can follow them for years. At Sieben Edmunds Miller, we understand what is at stake for young clients and their families. We approach every underage DWI case with the same thoroughness and commitment we bring to adult cases. Contact us to discuss your situation.
Frequently Asked Questions About Underage Drinking and Driving
What happens if a driver is charged with an underage DUI under Minnesota’s zero-tolerance law?
The driver faces a misdemeanor charge with penalties including up to 90 days in jail, a $1,000 fine, and a 30-day license suspension for a first offense. Drivers between 16 and 17 are prosecuted in juvenile court. A conviction also restricts eligibility for a provisional license or standard license.
How do zero-tolerance laws apply to teen drinking and driving cases in Minnesota?
Under Minnesota Statute § 169A.33, any measurable amount of alcohol in the body of a driver under 21 is enough for a charge. The law applies even at very low BAC levels where impairment might not be apparent. The zero-tolerance threshold is substantially lower than the 0.08 percent limit that applies to adult drivers.
What are the legal consequences of underage drinking and driving in Minnesota?
Consequences include criminal penalties (misdemeanor), license suspension, and restrictions on the ability to advance through Minnesota’s graduated licensing program. If the driver’s BAC is 0.08 percent or higher, they can also be charged under the standard DWI statute, which carries more severe penalties.
What penalties can teens face for an underage DWI conviction in Minnesota?
Teens 16 to 17 are prosecuted in juvenile court and face juvenile adjudication, which includes potential probation, community service, and license restrictions. Teens 18 to 20 are prosecuted in adult court and face adult criminal penalties. All underage offenders face license suspension and restrictions on future licensing eligibility.
How do underage drinking and driving laws differ from adult DUI laws in Minnesota?
The key difference is the BAC threshold: any detectable amount for drivers under 21 versus 0.08 percent for adults. Additionally, a zero-tolerance conviction alone (without a standard DWI) cannot be used to enhance future DWI charges. Drivers 16 to 17 are processed in juvenile court, while drivers 18 to 20 face adult court proceedings.
