Final answer:
A BAC level above 0.08% will result in more severe penalties. This is the standard for DUI, with higher BAC levels leading to greater impairment and more serious consequences.
Step-by-step explanation:
A BAC level above 0.08% will result in more severe penalties. In the United States, the standard legal limit for driving under the influence (DUI) is a blood alcohol concentration (BAC) of 0.08%. At this level, the individual is deemed impaired, and it is illegal to drive. Penalties become more severe as the BAC increases due to the greater risk of harm posed by more significant impairment. Acute intoxication occurs at higher levels, unconsciousness can ensue around 0.30% BAC, and death might occur at approximately 0.50% BAC. The Breathalyzer, a device used by law enforcement, measures the ethanol concentration in breath, which corresponds to the BAC.