At what blood alcohol concentration (BAC) level is it illegal for drivers under 21 to operate a vehicle in Indiana?

In Indiana, the legal limit for blood alcohol concentration (BAC) for drivers under the age of 21 is indeed set at 0.01% BAC. This is established under Indiana's zero-tolerance policy, which is designed to deter underage drinking and driving. This means that even the presence of a small amount of alcohol in the bloodstream is enough for a driver under 21 to be charged with a DUI offense. This strict regulation reflects the state’s commitment to improving road safety and minimizing risks associated with underage drinking.

The other BAC levels mentioned, such as 0.04%, 0.08%, and 0.10%, pertain to different categories of drivers and situations. For example, a BAC of 0.08% is the legal limit for drivers aged 21 and older, while 0.04% is a specific limit for commercial drivers. The zero-tolerance stance for those under 21 is intentionally set low to prevent any alcohol consumption before driving, reinforcing the message that young drivers should not drink and drive at all.