In this title:
((1)) ** .—** The term “Director” means the Director of the National Park Service.
((2)) ** .—** The term “National Park System” means the areas of land and water described in .
((3)) ** .—** The term “Secretary” means the Secretary of the Interior.
((4)) ** .—** The term “Service” means the National Park Service.
((5)) ** .—** The term “System” means the National Park System.
((6)) ** .—** The term “System unit” means one of the areas described in .
