Cannabis DUI Laws in Ohio

Ohio (OH)Per Se THC Limit

This state sets a specific THC blood concentration limit. Drivers at or above this level are legally considered impaired.

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DUI Law Details

THC Limit

2 ng/mL blood

legal threshold

Testing Method

Blood, urine, field sobriety

authorized methods

Implied Consent

Yes

required for licensed drivers

First Offense Penalty

3 days to 6 months in jail, fines $375-$1,075, 1-year to 3-year license suspension

Test Refusal Penalty

1-year license suspension

Overview

Ohio has a per se THC limit of 2 nanograms per milliliter of blood (or 10 ng/mL for urine and 35 ng/mL for urine metabolites). This is one of the lower THC limits in the country, tied with Nevada's blood limit. Ohio voters approved recreational cannabis in 2023.

Ohio's OVI (Operating a Vehicle Impaired) statute treats cannabis DUI similarly to alcohol DUI. The low per se limit means that even light cannabis users may exceed the threshold. Ohio uses blood and urine testing to measure THC levels.

Key Facts

•Per se limit: 2 ng/mL THC in blood
•Also 10 ng/mL urine or 35 ng/mL urine metabolite limits
•Recreational cannabis approved by voters in 2023
•First offense carries 3 days to 6 months in jail
•1-year license suspension for test refusal
•OVI charge applies to cannabis impairment

Frequently Asked Questions

What is Ohio's THC driving limit?+

Ohio has a per se limit of 2 ng/mL of THC in blood, 10 ng/mL in urine, or 35 ng/mL of THC metabolites in urine.

What is OVI in Ohio?+

OVI (Operating a Vehicle Impaired) is Ohio's term for driving under the influence. It covers both alcohol and drug impairment, including cannabis.

What are the penalties for a first cannabis OVI in Ohio?+

A first offense carries 3 days to 6 months in jail (or a 3-day driver intervention program), fines of $375-$1,075, and a 1-year to 3-year license suspension.

Has Ohio changed its THC limits since legalization?+

As of the current date, Ohio has maintained its pre-existing per se THC limits despite voter approval of recreational cannabis.

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Disclaimer: The information on this page is provided for educational and informational purposes only and does not constitute legal advice. Cannabis remains illegal under US federal law. Ohio DUI laws and regulations are subject to change and may vary by local jurisdiction. THC limits, penalties, and testing methods described here are based on publicly available information and may not reflect the most current regulations. Always verify current laws with official Ohio state resources and consult with a qualified attorney for legal guidance. Cannabismarketcap does not guarantee the accuracy or completeness of any information presented.