Roadwise States Ohio Driving lessons BAC limits & chemical tests Ohio driving lesson · Insurance, OVI & Penalties
BAC limits & chemical tests A 3-minute lesson from the Ohio course. Read the rules and examples, follow the handbook page references, and check your understanding before you move on.
Read time 3 minutes
Course unit Insurance, OVI & Penalties
Checkpoint questions 6
Source pages 28 Ohio calls impaired driving OVI — operating a vehicle while impaired. The legal limit depends on who you are, and refusing a chemical test brings its own automatic suspension.
OVI Operating a vehicle while impaired — driving under the influence of alcohol and/or drugs.
Handbook p. 28 ↗ Know the rule
If stopped for suspected OVI (or physical control of a vehicle while under the influence), the officer will conduct sobriety tests and request a chemical test of alcohol and/or drug content.
Handbook p. 28 ↗ Know the rule
Evidence of impairment comes from the officer's physical findings and a blood, breath, plasma or urine test.
Handbook p. 28 ↗ Administrative License Suspension (ALS) A license suspension that begins immediately when, after an OVI arrest, you test over the limit or refuse a chemical test.
Handbook p. 28 ↗ Know the rule
Test over the limit: if you consent to a test within two hours of arrest and your BAC is .08 or higher, the officer takes your license, a sworn statement goes to the BMV, and a suspension of up to five years begins immediately.
Handbook p. 28 ↗ Know the rule
You have the right to an independent chemical test at your own expense.
Handbook p. 28 ↗ Know the rule
Test refusal: if you refuse a test within two hours of arrest, the officer takes your license, and the BMV must impose a suspension of one to five years, starting immediately.
Handbook p. 28 ↗ Know the rule
A refusal suspension stands even if you are later acquitted of the OVI charge.
Handbook p. 28 ↗ Put it into practice
A 19-year-old has two beers and blows .03%. That's under .08, but it's over the .02% limit for drivers under 21, so it's illegal.
A useful reminder Refusing the test doesn't help: the refusal suspension (1–5 years) stays even if you win the OVI case.
Check your understanding Read the question, decide on an answer, then open it to check the explanation. These are Roadwise study questions based on the source handbook.
What is the illegal BAC limit for a driver 21 or older in Ohio? .04% .02% .08% .10% Answer: .08%
The illegal BAC limit for drivers 21 and older is .08% or higher.
Handbook p. 28 ↗ What is the illegal BAC limit for a commercial driver in Ohio? .08% .02% .00% .04% Answer: .04%
Commercial drivers face a stricter illegal BAC limit of .04% or higher.
Handbook p. 28 ↗ What is the illegal BAC limit for a driver under 21 in Ohio? .02% .08% .04% .00% Answer: .02%
Drivers under 21 face the strictest illegal BAC limit of .02% or higher.
Handbook p. 28 ↗ Within how many hours of arrest must a chemical test be taken for the results to trigger an Administrative License Suspension? 1 hour 2 hours 4 hours 6 hours Answer: 2 hours
A chemical test must be given within two hours of the arrest for the ALS process described in the handbook to apply.
Handbook p. 28 ↗ What happens if you refuse a chemical test after being arrested for suspected OVI? Nothing happens without a conviction You receive a warning only The officer confiscates your license and the BMV imposes a suspension You must retake the driving test to keep your license Answer: The officer confiscates your license and the BMV imposes a suspension
Refusing a chemical test results in license confiscation and a mandatory BMV suspension.
Handbook p. 28 ↗ A 19-year-old drives with a BAC of .03%. Is this illegal under Ohio's under-21 BAC law? No, .03% is below the adult .08% limit No, the under-21 limit is .04% It depends on the driver's weight Yes — over the .02% under-21 limit Answer: Yes — over the .02% under-21 limit
Drivers under 21 face a .02% BAC limit, so .03% exceeds it even though it's below the adult .08% threshold.
Handbook p. 28 ↗ Previous lesson Insurance & financial responsibility Next lesson ALS suspensions, OVUAC & repeat OVI More in Insurance, OVI & Penalties About the source Roadwise’s Ohio course uses the driver handbook edition supplied with this study pack. This lesson cites source pages 28. The linked PDF is a third-party mirror of the handbook, rather than a government-hosted page.
Open the handbook source PDF · View the source edition
For current application requirements, fees, appointments, and the format that applies to your age or license type, check Ohio’s BMV. Roadwise provides study material and does not issue permits or licenses.