In short
Graduated Driver License — a phased licensing system used in most US states for new drivers.
A Graduated Driver License (GDL) is a US licensing system that grants driving privileges in stages: a learner's permit, then a provisional or intermediate license with restrictions (no driving at night, no teen passengers), then a full unrestricted license.
GDL programs are used by most US states for new drivers under 18 to reduce crash risk.
Related terms