All permit or probationary (formerly provisional) drivers under age 21 IN New Jersey must display a reflectorized decal on each license plate (front/back) of any motor vehicle they operate (P.L. 2009, c.37-Kyleigh's Law, eff. May 1, 2010). Drivers under 21 subject to New Jersey's Graduated Driver License (GDL) requirements: Special learner's permit, Examination permit and Probationary (formerly Provisional) license. Decals must be displayed for road test of drivers under age 21. One decal must be displayed on the upper left corner of the front license plate and one on the upper left corner of the rear license plate.Failure to display the decals during operation of a vehicle by a learner's permit, an examination permit or probationary license holder, who is subject to the GDL requirements, is a violation subject to a $100 fine. See N.J.S.A. 39:3-13.8.