Make sure you are aware that a "boat license" is not the same as a Boating Safety Certificate.
The boat license, a long running money making scam perpetuated by the NJMVC, ONLY entitles you to operate a power vessel on non-tidal fresh water. That's it.
A boating safety certificate is required for anyone operating a power vessel (including electric motors!) who was born after 1949. A boating license is not required for electric power less than 1hp.
Next year, regardless of age, everyone will have to have the certificate to operate anything with a motor.
Boating safety certificate classes used to be free for the most part but now most private and even public entities charge $60- $75 for the class.
Here is the NJSP FAQ page which explains a lot of this.
http://www.njsp.org/maritime/faq.html
and the MVC page:
http://www.state.nj.us/mvc/Licenses/Motorboat.htm
Enjoy NJ!