Ohio

To get a learners license you must:
Have a minimum age of 15, 6 months
Before getting a license or restricted license you must:
Have a mandatory holding period of 6 months
Have a minimum supervised driving time of 50 hours, 10 of which must be at night
Have a minimum age of 161
Restrictions during intermediate or restricted license stage:
Nighttime restrictions midnight-6 a.m. (first 12 months), 1 a.m.-5 a.m. (second 12 months) secondary enforcement (effective 01/01/17)
Passenger restrictions (family members excepted unless otherwise noted) first 12 months—no more than 1 passenger (effective 01/01/17)
Minimum age at which restrictions may be lifted:
Nighttime restrictions 24 months (min. age: 18) (effective 01/01/17)
Passenger restrictions 12 months (min. age: 17) (effective 01/01/17)

1In Ohio, driver education is required of license applicants younger than 18. Applicants who are 18 and older and who have failed the road test must complete an abbreviated driver training course.