Question: Why does graduated driver licensing improve driving proficiency?
Answer: Placing limits on teen mobility may reduce driving exposure, but driving proficiency can be improved through measures that emphasize getting teens behind the wheel to practice. These components encourage the intermediate licensee to make safe driving decisions while driving to reduce risk. They include:
- multi-level instruction coupled with multi-level testing (giving inexperienced drivers the opportunity to first learn then practice the basics before moving on to learning and practicing more advanced skills)
- parental guidance
- driver improvement courses
- and delayed re-testing after failure.

