In North Carolina boats are registered with the North Carolina Wildlife Commission. Here is there website:
http://www.ncwildlife.org/License/Ve...tling_Info.htm
As far as the trailer is concerned it is registered with the North Carolina Department of Motor Vehicles. The dreaded licenses plate agancy. Here is their website:
http://www.ncdot.org/dmv/vehicle_services/
Good luck and just to let ya know I work for the other half of NCDMV that everyone thinks is dreaded also: The Drivers License Office.