For every state and D.C., the Institute has estimated the effects of strengthening or weakening
5 key GDL provisions: permit age, practice driving hours, license age, and night driving and passenger
restrictions. The projections are based on research showing what
matters most when it comes to preventing fatal crashes and collision claims among teen drivers.
This calculator uses the results of that research to show how changes to state provisions might
affect collision claims and fatal crash rates among young drivers. To get started, select a
state from the list below:
Choose your state:
Best GDL provisions by state as of May 2012
Permit age of 16:
65 supervised practice hours:
Licensing age of 17:
8 p.m. night driving restriction:
No teen passengers: