If you drive in Georgia, you may encounter driving under the influence (DUI) charges in several distinct forms. Each form can rely on a type of proof that shapes your situation on the road. Officers may evaluate test results, observe your behavior or consider a combination of both. By reviewing these categories, you develop a more informed perspective on what you could face.
DUI per se
Georgia law sets per se blood alcohol concentration (BAC) limits by driver type. If you are 21 or older, the limit is .08 BAC within the last three hours after driving or operating a vehicle. For commercial drivers operating a commercial vehicle, the limit is .04 BAC.
If you are under 21, Georgia’s zero-tolerance limit is .02 BAC within three hours. In a per se case, a BAC at or above those levels can meet the alcohol element of the DUI without needing proof of impairment or unsafe driving.
DUI less safe
This category emphasizes observed impairment. Officers may cite you when signs indicate reduced control. Officers often look for certain signs of impairment, such as:
- Crossing lanes
- Slurring speech
- Displaying poor field test results
- Losing focus
Together, these signs may indicate a connection between your condition and unsafe driving, even with a lower BAC reading.
Drug-related DUI
This category addresses impairment from drugs. It may involve prescriptions, over-the-counter items or illegal substances. Toxic vapors also fall under Georgia law. Officers may also note signs that drugs reduced your safe control, and tests can support those observations when available.
Combination DUI
This category involves cases where alcohol and drugs act together. Even small amounts may interact and create stronger impairment than either alone. Officers may review the mix of substances and record the effect on balance, focus and reaction time.
Looking deeper into Georgia DUI charges
These DUI categories show that Georgia law may take into account alcohol levels, observed actions or combined effects. Each type describes risks tied to impaired control. By reviewing these forms, you gain a clearer view of the ways charges may arise.
You may also consider reaching out to a DUI attorney if you ever face such charges. Support from a professional can help you understand your rights and take informed steps.

