Recommended Minimum GDL ProvisionsGraduated Driver Licensing (GDL) programs are a proven strategy to prevent teen driver crashes. Research shows that most teen crashes involve "rookie" mistakes. Teens need time to gain driving experience under low-risk conditions and with minimum distractions. That's why GDL provisions are in place—to reduce teen driver crash risk by limiting their exposure to certain hazards, including distractions such as passengers and cell phones. Based on new and existing research,here are the recommended minimum GDL provisions:
All but one state in the U.S. has a three-phase GDL program in place. No state, however, currently has all the minimum provisions as described above under law.