A BAC of 0.08% must be obtained within how many hours of arrest for a possible OVI?

• A. 2
• B. 3
• C. 4
• D. 5

Answer: (B)

The key idea is that a BAC reading used to support an OVI charge must reflect the driver's level of intoxication at the time of driving, not later. Alcohol is metabolized and cleared from the bloodstream over time, so waiting too long to test can lower the BAC even if impairment was present when the motorist was behind the wheel. To preserve the link between impairment and the 0.08% per se limit, a BAC measurement of 0.08% or higher needs to be obtained within a limited window after the arrest. In Ohio, that window is three hours. Testing within three hours helps ensure the result accurately represents the driver’s condition at the time of operation; testing after that window may produce a reading that doesn’t reliably reflect impairment at the time of driving.