Which Comes First, the Book or the Road? You both will find it helpful to review this chapter, and any other materials you can find before actually letting the new driver get behind the wheel. People under the age of eighteen) must have a learner permit for 180 days and qualify under the GDL program before they can be road tested. This requirement involves book learning before getting on the road and a minimum amount of supervised on the road learning before getting a license to drive solo. This is a good principle for people of any age who are just learning to drive.