For long gun registrations a person needs to apply and receive a Long Gun Permit to Acquire from the county PD records department. That would entail background check (both criminal and medical/mental clearance) and fingerprinting (Rap Back fee is $42 in Maui). For handgun permits, a Hawaii State certified handgun safety course or hunters safety course completion certificate is require in addition to the background check mentioned previously. Guns entering the state needs to be held by a FFL dealer until all firearm registration requirements are met. When requirements are met, you can go back to the FFL dealer, show the dealer your permit(s), pay them the FFL transfer fees, then you can finalize registration by bringing your firearms to the county PD records department. Good luck.