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Comprehensive Graduated Driver Licensing (GDL)

General Statistics

  • States with comprehensive GDL programs in place report as much as a 40 percent drop in the number of fatal crashes among 16-year-old drivers.1
  • Although three components of GDL separately contribute to reduced crash rates (extended learner permit period, nighttime driving restrictions, and passenger restrictions) , GDL programs that combine all three may result in the highest crash reductions among 16-year-old drivers.2,3
  • Nearly all states have some components of GDL law in place to help protect teens from serious accidents during the first several months of driving.
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Source:

1. Shope JT. Graduated Driver Licensing: Review of Evaluation Results since 2002. Journal of Safety Research. 2007; 38(2):165–176.

2.  Chen L, Baker SP, Li G. Graduated Driver Licensing Programs and Fatal Crashes of 16-year-old drivers. Pediatrics. 2006;188:56-62).

3. Williams AF. Contribution of the Components of Graduated Licensing to Crash Reductions. Journal of Safety Research. 2007; 38:177-184.

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