NJ is no fault.
Here's an article that attempts to answer your question:
http://www.newswise.com/p/articles/view/30499/
Basically, No fault guarantees that your insurance company will pay your damages, up to a limit specified in your policy, and no matter who's at fault.
States include: DC, FL, HI, KS, KY, Mass, MI, MN, NJ, NY, ND, PA, UT