Ohio has several laws in place to protect drivers from drunk driving. A person can be arrested for an “Operating a Vehicle Under the Influence,” or OVI if their blood alcohol concentration (BAC) is .08% or higher. An OVI is a drunk driving conviction where the BAC is above the legal alcohol limit, rendering the driver legally impaired. The legal drinking limit in Ohio is as follows: Standard, non-commercial drivers: 0.08% BAC Commercial drivers: 0.04% BAC Drivers under 21: 0.02% BAC Penalties, Fines, & Suspension