Guys:
NJ is 1 hour 'law', 9 hrs NEC update (2005 now), (2x5 hr classes) and 24 hrs of 'trade related courses'. Instructors are State Approved, as are the courses. This is a mandatory thing every Lic. renewal period (3 yrs)
Costs vary, depending on the Instructor(s), and if you are a member of an association they are affiliated with.
I had a flyer here somewhere, think it was about $500, but Walrus's numbers are in the ballpark.
BTW, Inspectors also require 3x8 hr seminars, plus 3x8 hrs for Sub-Code, and I think 3x8 hrs more for CO. The DCA sponsors these seminars (State (Rutgers/DCA) run) and all it costs is TIME.
John
