Colorado

To get a learners license you must:
Have a minimum age of 151
Before getting a license or restricted license you must:
Have a mandatory holding period of 12 months
Have a minimum supervised driving time of 50 hours, 10 of which must be at night
Have a minimum age of 16
Restrictions during intermediate or restricted license stage:
Nighttime restrictions midnight-5 a.m.; duration 12 months secondary enforcement
Passenger restrictions (family members excepted unless otherwise noted) no passengers younger than 21; duration: first 6 months; no more than 1 passenger younger than 21; duration: second 6 months secondary enforcement
Minimum age at which restrictions may be lifted:
Nighttime restrictions 17
Passenger restrictions 17

1In Colorado, the minimum permit age varies. Fifteen year-olds who are enrolled in driver education may apply for an instruction permit. Their supervising driver must be a parent, stepparent, grandparent, guardian, or driving instructor. At age 15, 6 months, driver education is no longer required, but applicants for this permit must have completed a four hour driver awareness program. At 16, young drivers may apply for a permit that allows driving while supervised by a licensed driver age 21 or older.