Graduated driver licensing (GDL) is a system used to gradually expose teens to the driving experience and phase them into full driving privileges.

GDL has been proven effective at reducing teen drivers' high crash rates by 20 percent to 40 percent. According to The Allstate Foundation’s “License to Save” report, if all states implemented comprehensive graduated driver licensing laws, an estimated 2,000 lives and $13.6 billion could be saved per year.

The GDL concept arose in the early 1970s and was based on three key factors in teen-driver crashes:

  1. Nighttime driving
  2. The presence of other teens in the car
  3. The youth and inexperience of the driver