BMV Practice Test 2025 - Free BMV Practice Questions and Study Guide

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What is the legal limit for Blood Alcohol Concentration (BAC) for drivers over 21 in most states?

0.08%.

The legal limit for Blood Alcohol Concentration (BAC) for drivers who are over 21 in most states is 0.08%. This threshold has been established as a standard to determine impairment while driving; a BAC of 0.08% indicates a level of intoxication that significantly affects cognitive and motor skills necessary for safe driving. Above this limit, drivers are considered legally impaired, which can lead to penalties like fines, license suspension, or even jail time.

Setting the legal limit at 0.08% aims to reduce the number of alcohol-related accidents and promote safer driving practices. Different limits for other groups, such as commercial drivers or underage individuals, reflect the increased responsibilities or risks associated with those categories. Understanding this limit is vital for responsible drinking and driving habits.

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0.05%.

0.10%.

0.12%.

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