Ohio
GHSA maintains data on state laws surrounding a number of highway safety issues. Below is information regarding laws in the state of Ohio. For more information, consult the State Highway Safety Office.
Helmets required for riders under 18 or who have been licensed for less than one year as well as for all passengers when the operator is required to wear a helmet. Universal helmet law repealed 1978.
4 years
None
Decriminalized and legal for medical use
THC per se (2 ng)
Per se >0 for some drugs
70
70
65
65
70
70
0.17
90 days
After 15 days
Mandatory for repeat convictions
No
No
Under 4 yrs or under 40 lbs in child safety seat, following manufacturer instructions
4-8 yrs, over 40 lbs and under 4'9" tall in booster seat, following manufacturer instructions
8-15 yrs
First 12 months, no more than 1 unless supervised
Nighttime driving: 18 years Driving with passengers: 17 years
15 / 6
6
50 (10)
16
Age 16: Midnight - 6 a.m. Age 17: 1 a.m. - 5 a.m. (secondary enforcement)
Secondary
8 and over
8-14 yrs: All (primary enforcement) 15 and over: Front
Yes. Primary law.
No
Drivers under 18. Primary law.
All drivers. Primary law.
Statewide; not permitted on interstates when operated by townships
Permitted by state law and city ordinance
Statewide
Permitted by state law
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Motorcycle Helmet Laws: Ohio
Motorcycle Helmet Required?
Helmets required for riders under 18 or who have been licensed for less than one year as well as for all passengers when the operator is required to wear a helmet. Universal helmet law repealed 1978.
Mature Driver Laws: Ohio
Length of Regular Renewal Cycle
4 years
Drug-Impaired Driving Laws: Ohio
DUID Zero Tolerance or Per se Laws for Some Drugs
Per se >0 for some drugs.
Speed Limit Laws: Ohio
Rural Interstates: Cars (MPH)
70
Alcohol Impaired Driving Laws: Ohio
Ignition Interlocks
Mandatory for repeat convictions
Child Passenger Safety Laws: Ohio
Child Restraint Required
Under 4 yrs or under 40 lbs in child safety seat, following manufacturer instructions
4-8 yrs, over 40 lbs and under 4'9" tall in booster seat, following manufacturer instructions
Teen and Novice Drivers: Ohio
Full Privilege Minimum Age
Nighttime driving: 18 years
Driving with passengers: 17 years
Seat Belt Laws: Ohio
Type of Law
Secondary