Georgia enforces a strict zero-tolerance approach to underage drinking and driving. Drivers under the age of 21 are subject to a blood alcohol concentration (BAC) limit far lower than the standard legal limit for adults, and the consequences of a DUI conviction for a young driver extend well beyond criminal penalties to affect driving privileges, educational opportunities, and future employment. Understanding Georgia’s underage DUI law is critical for young drivers and their families.

The 0.02 BAC Threshold Under O.C.G.A. § 40-6-391(k)

Under O.C.G.A. § 40-6-391(k), it is unlawful for any person under the age of 21 to drive or be in actual physical control of any moving vehicle while their BAC is 0.02 grams or more. At 0.02, the legal limit for underage drivers is one-quarter of the 0.08 BAC limit that applies to adult drivers over 21. This threshold is so low that a single standard drink—a 12-ounce beer, a 5-ounce glass of wine, or a 1.5-ounce shot of distilled spirits—may be sufficient to put an underage driver above the legal limit, depending on their body weight, metabolism, and the speed at which the alcohol was consumed.

The 0.02 threshold is sometimes described as a “zero tolerance” standard. While it technically permits a trace amount of alcohol, the practical effect is that any detectable level of alcohol consumption puts an underage driver at serious legal risk. Georgia’s legislature deliberately set this threshold at the minimum detectable level to reflect the state’s policy that underage individuals should not be consuming alcohol at all, let alone driving after doing so.

How an Underage DUI Differs from a Standard DUI Charge

An underage driver can be charged under the standard DUI statute—O.C.G.A. § 40-6-391(a)—if their BAC reaches 0.08 or above, or if they are impaired to the extent that they are a less safe driver regardless of their BAC. The 0.02 provision under subsection (k) operates as an additional and lower threshold that applies exclusively to drivers under 21. A young driver with a BAC between 0.02 and 0.079 would be charged under subsection (k) rather than the standard DUI statute, while a driver at 0.08 or above could be charged under both provisions.

Because the “less safe” DUI standard under O.C.G.A. § 40-6-391(a)(1) does not require any specific BAC reading, an underage driver who blows below 0.02 but exhibits signs of impairment may still be charged with DUI under the less-safe standard. Law enforcement officers are trained to observe and document physical signs of impairment—slurred speech, bloodshot eyes, poor performance on field sobriety tests—that may support a DUI charge independent of any chemical test result.

Criminal Penalties for Underage DUI

A first-offense underage DUI in Georgia is a misdemeanor. Upon conviction, the court may impose a fine of up to $300, a jail sentence of up to 12 months (though incarceration for a first offense is uncommon), and mandatory completion of a DUI Alcohol or Drug Use Risk Reduction Program (commonly known as DUI School). Community service may also be required. The defendant may be placed on probation for up to 12 months.

A second DUI conviction within ten years carries increased penalties including higher mandatory fines, a longer mandatory jail term, extended community service requirements, and mandatory clinical evaluation and treatment if substance use issues are identified.

License Suspension Consequences

The license consequences for an underage DUI conviction can be as damaging as the criminal penalties themselves. Under O.C.G.A. § 40-5-57.1, conviction of an underage DUI results in a six-month license suspension for a first offense. A second offense within five years results in a 12-month suspension. During a suspension, the driver is ineligible for a limited driving permit in most circumstances.

Separate from the criminal court process, Georgia’s administrative license suspension (ALS) process may result in a license suspension before any criminal conviction. Under O.C.G.A. § 40-5-67.1, a driver who fails a chemical test—meaning a BAC at or above the applicable legal limit—faces an administrative suspension unless a timely appeal is filed with the Office of State Administrative Hearings (OSAH) within 30 days of the arrest. This administrative process is independent of the criminal case and must be addressed separately.

Collateral Consequences for Young Drivers

For young drivers, the collateral consequences of a DUI conviction can be especially far-reaching. Many colleges and universities require disclosure of criminal convictions in their applications and may revoke admissions or scholarships upon learning of a DUI conviction. Federal financial aid programs may be affected if the conviction is drug-related. Professional licensing boards—for nursing, teaching, law, and other regulated professions—routinely conduct background checks and may deny licensure based on a criminal history.

Because the consequences of an underage DUI conviction compound over time and can affect the trajectory of a young person’s life, early and aggressive legal defense is essential. In appropriate cases, first-time offenders may be eligible for Georgia’s First Offender Act under O.C.G.A. § 42-8-60, which allows a plea to be entered without an adjudication of guilt and permits the record to be sealed upon successful completion of probation. Whether this option is available depends on the specific facts of the case and any prior criminal history.