DUI vs. DWI What’s the Difference

Answer:

In Georgia, the only legally recognized charge for impaired driving is DUI — driving under the influence — codified at O.C.G.A. § 40-6-391. Georgia does not use the term DWI (driving while intoxicated), which is terminology adopted by states such as Texas, New York, and North Carolina. While both terms address similar conduct, Georgia’s DUI statute requires proof that the driver was under the influence of alcohol or drugs — a broader standard that does not require traditional intoxication. Georgia DUI charges can be prosecuted under two distinct theories: DUI per se, based on a chemical test result at or above the statutory BAC threshold (0.08 for most drivers, 0.04 for commercial drivers, 0.02 for drivers under 21), or DUI less safe, based on evidence that alcohol or drug consumption rendered the driver less safe to operate a vehicle — which requires no BAC threshold and can be charged even without a chemical test.

The terms DUI and DWI are often used interchangeably in everyday conversation, but they carry different legal meanings depending on the jurisdiction, and in Georgia, only one of these terms has legal significance. Understanding the distinction — and how Georgia’s DUI law is structured — is important context for anyone navigating an impaired driving charge in the state.

Georgia Uses DUI, Not DWI

In Georgia, the applicable charge for impaired driving is DUI — driving under the influence — as codified at O.C.G.A. § 40-6-391. Georgia does not use the term DWI (driving while intoxicated or driving while impaired), which is the terminology adopted by a number of other states, including Texas, New York, and North Carolina. While the underlying conduct being addressed is similar across jurisdictions, the specific language of the statute matters because it defines what the prosecution must prove to obtain a conviction.

The term intoxicated, as used in DWI statutes in other states, connotes a particular degree of impairment — a common understanding being that intoxication implies visible, substantial impairment. The Georgia DUI statute does not require the prosecution to prove intoxication in this colloquial sense. Instead, it requires proof that the driver was under the influence of alcohol or drugs, which is a broader and in some respects a lower standard than traditional intoxication.

DUI Per Se: The Chemical Test Standard

Georgia law recognizes two distinct theories under which a DUI charge can be prosecuted. The first is DUI per se, governed by O.C.G.A. § 40-6-391(a)(5). Under this theory, the prosecution does not need to prove that the driver was actually impaired — only that the driver’s blood alcohol concentration (BAC) met or exceeded the statutory threshold at the time of driving.

For drivers age 21 and over operating non-commercial vehicles, the per se BAC limit is 0.08 grams per 100 milliliters of blood or 0.08 grams per 210 liters of breath. For commercial vehicle operators, the limit is 0.04 under O.C.G.A. § 40-6-391(a)(6). For drivers under 21, Georgia operates under a zero-tolerance policy — a BAC of 0.02 or above is sufficient for a DUI per se conviction under O.C.G.A. § 40-6-391(k).

DUI per se charges are driven by the chemical test result, and defense in these cases typically focuses on the reliability and admissibility of the test — whether the breath testing instrument was properly calibrated and maintained, whether the blood draw was conducted by a qualified person following proper procedures, and whether the chain of custody for any blood or urine sample was properly maintained.

DUI Less Safe: The Impairment Standard

The second theory under which DUI is prosecuted in Georgia is DUI less safe, found at O.C.G.A. § 40-6-391(a)(1) through (a)(4). This theory requires the prosecution to prove not only that the driver consumed alcohol or drugs, but that the consumption rendered the driver a less safe driver. The less safe standard does not require proof that the BAC exceeded any particular threshold — a driver can be convicted of DUI less safe even if their BAC was below 0.08, or even if no chemical test was performed.

DUI less safe cases are more heavily dependent on the observations of the arresting officer — the manner of driving, performance on field sobriety tests, and the officer’s subjective assessment of the driver’s condition. Because of this reliance on officer testimony, video evidence from dashcams and bodycams is particularly valuable in less safe cases. If the video contradicts the officer’s account of impaired driving or poor field sobriety test performance, it can significantly undermine the prosecution’s case.

Drug-Based DUI in Georgia

Georgia’s DUI statute also applies to impairment caused by drugs — both illegal substances and legally prescribed medications. Under O.C.G.A. § 40-6-391(a)(2), a person may be convicted of DUI if they are under the influence of any drug to the extent that it is less safe to drive. For marijuana specifically, O.C.G.A. § 40-6-391(a)(3) provides that a person may be convicted if there is any amount of marijuana or a controlled substance present in their blood or urine, subject to the prescription drug exception discussed in a separate provision.

Drug-based DUI cases frequently involve Drug Recognition Expert (DRE) testimony — a specialized protocol in which officers trained to identify drug impairment evaluate the suspect through a 12-step assessment. DRE testimony is subject to challenge on foundational and reliability grounds, and defense attorneys should be prepared to scrutinize both the officer’s DRE certification and the methodology of the evaluation.

Penalties Under Georgia’s DUI Framework

Whether charged as DUI per se or DUI less safe, the penalties in Georgia are the same for a given offense level. A first DUI conviction within ten years is a misdemeanor, carrying a minimum of 24 hours and up to 12 months in jail (with the jail sentence typically suspended in part), a fine of $300 to $1,000 plus surcharges, mandatory community service, completion of DUI school (risk reduction program), and a 12-month license suspension with limited driving privileges available after 120 days. Subsequent convictions within a ten-year period carry escalating mandatory minimums, higher fines, and longer suspension periods, culminating in the felony classification for a fourth conviction within ten years under O.C.G.A. § 40-6-391(c)(4).

If you’re DUI charges in the Gainesville area, this video answers a common question — but every case is different. For legal guidance, visit our Gainesville GA DUI Attorney page to learn how we can help.

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