To get a learners permit you must
Have a minimum age of 15, 6 months
Before getting an intermediate or restricted license you must
Have your permit for 6 months
Complete minimum supervised driving of 50 hours, 10 of which must be at night
Have a minimum age of 161
Restrictions during intermediate or restricted license stage
Nighttime restriction 10 p.m.-5 a.m. secondary enforcement
Passenger limit (family members excepted unless otherwise noted) no passengers younger than 18 secondary enforcement
Minimum age at which restrictions may be lifted
Nighttime restriction until age 18 (min. age: 18)
Passenger restriction 6 months or until age 18, whichever occurs first (min. age: 16, 6 mos.)

1In Nevada, driver education is required of all license applicants younger than 18 unless there is no driver education program offered within a 30-mile radius of the applicant's residence.