What is the key difference between DUI and DWI?

The distinction between DUI (Driving Under the Influence) and DWI (Driving While Intoxicated or Driving While Impaired) is primarily based on the substances involved in the offense. DUI encompasses a broader range and refers to operating a vehicle while impaired by either drugs or alcohol. This means that a driver can be charged with DUI if they are under the influence of any substance that affects their ability to drive safely, which can include illegal drugs, prescription medications, or a combination of substances.

On the other hand, DWI more specifically refers to impairment due to alcohol consumption. This means that someone charged with DWI has a blood alcohol concentration (BAC) that exceeds the legal limit, indicating significant impairment solely from alcohol.

This distinction is essential for understanding laws related to impaired driving, as the consequences and penalties can differ significantly based on the specific charges. Understanding the terms accurately helps in grasping how different jurisdictions may apply these labels and their associated legal ramifications.