DWI, or Driving While Intoxicated, refers to the legal offense of operating a vehicle under the influence of alcohol or drugs. Each state has specific blood alcohol concentration (BAC) limits, typically set at 0.08% for adults. Penalties for a DWI can include fines, license suspension, and even jail time, depending on the severity of the offense and whether it is a repeat violation. The effects of alcohol on driving ability can impair judgment, coordination, and reaction times, increasing the risk of accidents. Law enforcement uses various methods, such as breathalyzer tests, to determine a driver's level of intoxication. Public awareness campaigns aim to reduce DWI incidents and promote safe driving practices.