What is the main difference between DUI and DWI?

The distinction between DUI (Driving Under the Influence) and DWI (Driving While Intoxicated or Driving While Impaired) often revolves around the specifics of impairment and intoxication. The main difference highlighted in the correct answer focuses on the definitions of impairment versus intoxication.

When referring to DUI, it typically encompasses a broader category of driving under any influence, whether that be from alcohol or drugs, where an individual may experience impairment in their ability to operate a vehicle. Impairment can occur at various levels, some of which may not necessarily reach the threshold of intoxication characterized by a specific blood alcohol concentration (BAC).

DWI, on the other hand, usually refers to being intoxicated, which often indicates a higher level of impairment due to alcohol or drugs that significantly affects one's ability to drive safely. This term often denotes a clearer-cut legal standard of being above a certain BAC limit.

Understanding this distinction is crucial for interpreting the laws governing driving offenses. Laws can vary by state, but this foundational difference between impairment and intoxication is central to the enforcement and penalties surrounding these offenses.