The numbers at a glance
Permit age
16
Earliest age you can apply for a learner permit in New Jersey.
Hold time
180 days
Minimum days you must hold the permit before the next stage.
Supervised hours
50
Total behind-the-wheel hours required, with 10 at night.
Supervisor age
21+
Minimum age of the licensed adult supervising your practice.
Top highway speed
65 mph
Maximum posted limit on rural interstates in New Jersey.
Full license at
18
18 (after 1 year on probationary license with no violations).
The four rules that show up on the test
Most state permit exams include at least one question about each of the four rules below. They're also the rules police are most likely to enforce against new drivers in your first year.
- Night-driving curfewProbationary license holders may not drive between 11:01 p.m. and 5 a.m..
- Passenger limitProbationary license holders may carry no more than 1 non-household passenger.
- Cell phone ruleAll cell phone use (handheld and hands-free) banned for permit and probationary license holders; red decal required on plates.
- Supervised practiceYou must complete 50 hours of supervised driving (10 at night) with a licensed driver age 21 or older before taking the road test.
Why GDL laws exist
Every U.S. state has some form of Graduated Driver License (GDL) program because crash data is unambiguous: the first six months of independent driving are the most dangerous time in a driver's life. The Insurance Institute for Highway Safety (IIHS) estimates that strong GDL laws — meaning a learner stage of at least six months, a night curfew, and a passenger limit — have cut fatal teen-driver crashes by roughly 30% in states that adopted them.
The New Jersey permit test will ask you to recognize these rules even before you start driving on your own. Memorize the night curfew time, the supervisor age, and the passenger limit; those are the three details state DMV exams ask about most often.
How the practice questions cover GDL
About 4 to 6 of the 25-50 questions on a typical state permit exam test GDL details directly. We've sprinkled New Jersey-specific GDL questions throughout the Traffic Laws and Safe Driving Practices drills.
Official sources
Always verify these numbers with an official source before testing — small details (especially night-curfew start times and passenger exemptions) get amended every few years.