Abstract
This research aimed to consider about the Personal Watercraft use management on Japanese National Park Areas, referring to the U.S. National Park Service Cases and their surroundings. NPS has prohibited the PWC use in their areas except some National Park unit. The Personal Watercraft Industry Association claimed that the regulations were unreasonable and unsupported by evidence and arbitrary, but these trends were supported with the NPS missions. There are not only PWC use regulations, but strong enforcement of boating and navigation law and mandatory boating safety education for PWC users. They were necessity for Japanese PWC users.