A driver between the ages of 18 and 21 may use a cell phone while driving:

In the state of Arkansas, it is against the law for a driver under the age of 18 to make a phone call while operating a vehicle, except in the event of an emergency. A driver between the ages of 18 and 21 may use a cell phone while driving if they are using a hands-free device. It is important to remember that the use of any cell phone is a dangerous distraction to a person operating a motor vehicle.