Ohio Senate unanimously approves OVI marijuana testing update, hospital naloxone requirement, memorial highway and COSI license plate

The Ohio Senate on Oct. 7, 2025, passed multiple pieces of legislation by unanimous roll call, including a change to how marijuana-impaired driving is proved in OVI prosecutions, a requirement that hospitals provide opioid reversal drugs and information at discharge under certain conditions, a highway designation honoring a fallen Army captain, and a specialty license plate to benefit COSI (Center of Science and Industry) in Columbus.

Why it matters: The measures affect criminal-justice evidence standards on impaired driving, hospital discharge procedures for patients showing signs of opioid use disorder, and state recognition/funding for local institutions. Each measure passed with a recorded roll call showing 27 yeas and 0 nays.

Senate action and debate

Senate Bill 55 (OVI evidence for marijuana). Senator Manning, sponsor of substitute Senate Bill 55, described the bill as an update to Ohio’s OVI statutes to improve how marijuana impairment is evaluated in driving cases, saying the bill responds to scientific developments about active metabolites and their relation to recent use. The bill creates inferences based on specified thresholds (the sponsor described draft thresholds of about 25 nanograms for urine and 5 nanograms for oral fluid for an active metabolite) and retains a per se blood level for marijuana where blood testing is available. Senator Hicks Hudson spoke in support, saying the…