Arizona

To get a learners license you must:
Have a minimum age of 15, 6 months1
Before getting a license or restricted license you must:
Have a mandatory holding period of 6 months
Have a minimum supervised driving time of 30 hours, 10 of which must be at night (none with driver education)
Have a minimum age of 16
Restrictions during intermediate or restricted license stage:
Nighttime restrictions midnight-5 a.m. secondary enforcement
Passenger restrictions (family members excepted unless otherwise noted) no more than 1 passenger younger than 18 secondary enforcement
Minimum age at which restrictions may be lifted:
Nighttime restrictions 6 months or until age 18, whichever occurs first (min. age: 16, 6 mos.)
Passenger restrictions 6 months or until age 18, whichever occurs first (min. age: 16, 6 mos.)

1In Arizona, a driver education instructor can authorize an enrolled student who is 15 to drive only while supervised by the authorizing instructor.