July 15, 2025 | DUI Collision

When it comes to impaired driving, the legal terminology can be confusing. Acronyms like DUI, DWI, and DWAI often appear interchangeable, but they can carry different meanings depending on the jurisdiction. Each term reflects a specific charge that may come with different legal standards, penalties, and long-term consequences. Understanding the distinctions between these terms is helpful if you’ve been charged with a crime or want to stay informed about your rights and responsibilities behind the wheel. Continue reading to learn these distinctions.
What is a DUI?
DUI, which stands for “Driving Under the Influence,” is one of the most commonly used terms for impaired driving. It generally refers to operating a motor vehicle while under the influence of alcohol, drugs, or both. Tennessee uses the term DUI to refer to intoxicated driving charges. In Tennessee (and in most states), a person is considered legally intoxicated if their blood alcohol concentration (BAC) is 0.08% or higher. However, you can still be charged with DUI even if your BAC is below the legal limit, especially if drugs are impairing your ability to drive safely.
What is a DWI?
DWI stands for “Driving While Intoxicated” or “Driving While Impaired,” depending on the state. In some jurisdictions, DWI and DUI are used interchangeably. In others, DWI might indicate a higher level of intoxication or apply specifically to alcohol-related offenses. Understanding the specific definition of DWI in your state is important, as penalties and legal implications can vary significantly.
What is a DWAI?
DWAI stands for “Driving While Ability Impaired.” This term is used in a few states, such as New York and Colorado. It typically refers to situations where a driver’s ability to operate a vehicle is impaired to a noticeable degree but not necessarily to the level of legal intoxication. In New York, for instance, a DWAI charge may apply if a driver’s BAC is between 0.05% and 0.07%. Although the level of impairment is considered less severe than DUI or DWI, a DWAI is still a serious offense that can carry fines, license points, and even jail time.
Penalties for a DUI in Tennessee
DUI in Tennessee is a serious offense with steep consequences that become more severe with each subsequent conviction. Penalties include jail time, heavy fines, license revocation, mandatory treatment, and the installation of ignition interlock devices.
First-Time DUI Offense
First-time DUI charges may come with the following penalties:
- Jail time: 48 hours to 11 months and 29 days.
- Fines of up to $1,500
- License revocation of up to 1 year
- Ignition Interlock Device (IID).
Other requirements may include mandatory drug and alcohol treatment and restitution if the offense resulted in any injuries or property damage to others.
Second DUI Offense
A second-time DUI offense may result in:
- Jail time between 45 days to 11 months and 29 days.
- Fines up to $3,500.
- License revocation for 2 years.
- Vehicle forfeiture
Mandatory installation of an ignition interlock device and participation in a drug or alcohol treatment program may also be required.
Third and Subsequent DUI Offenses
A third DUI charge may result in the following penalties:
- Jail time between 120 days to 1 year, with the possibility of longer incarceration.
- Fines up to $15,000.
- License revocation for up to 8 years.
- Vehicle forfeiture
- IID and treatment
Tennessee law imposes enhanced penalties for DUI-related car accidents involving injury or death.
Contact the Nashville DUI Accident Lawyers at Minner Vines Injury Lawyers, PLLC for Help Today
If you’ve been injured in an accident with a drunk driver, you could be entitled to compensation through a personal injury claim. You may be able to recover money from the at-fault driver for your medical bills, lost income, and other damages.
Contact Minner Vines Injury Lawyers, PLLC to schedule a free consultation with a Nashville DUI accident attorney.
If you’ve been injured in an accident in Lexington or Bowling Green, please contact our car accident lawyers at Minner Vines Injury Lawyers, PLLC for a free case evaluation.
Minner Vines Injury Lawyers, PLLC – Lexington, KY Office
325 W Main St #210, Lexington, KY 40507 (859) 550-2900
Minner Vines Injury Lawyers, PLLC -Bowling Green, KY Office
814 State St. suite 100, Bowling Green, KY, 42101 (270) 517-2014
Minner Vines Injury Lawyers, PLLC – Nashville Office
49 Music Square W #504, Nashville, TN 37203 (615) 676-7060