What is the range of a driver's BAC to be considered as a DUI?

A blood alcohol concentration (BAC) level within the range of .03 to .099% is significant in the context of driving under the influence (DUI) regulations. This range is often associated with a legal threshold that varies by jurisdiction, but many states consider a BAC below .08% to be below the legal limit for impaired driving. However, it remains significant because these lower BAC levels can still impair driving abilities and may result in a DUI charge, particularly if the driver exhibits any signs of impairment or if they are operating a commercial vehicle.

The importance of this range is also reflected in how law enforcement conducts evaluations of drivers suspected of being under the influence. While .08% is commonly the legal limit for many drivers, some states apply lower thresholds for certain categories of drivers, such as those under the legal drinking age or commercial drivers, who may face DUI charges at levels below .08%.

This distinction is crucial for understanding the nuances of DUI laws and the impact that even low levels of alcohol can have on driving performance and legal repercussions.