Before revision: The categories of protected areas in Spain under Law 4/1989 are not based on higher or lower levels of protection, but on functions and characteristics: Parks : "natural areas, little transformed by human exploitation and occupation, that, for reason of the beauty of their landscapes, the representativeness of their ecosystems or their flora, fauna or geomorphological formations, possesses ecological, aesthetic, educational and scientific value, whose conservation merits preferential attention.
After revision: The categories of protected areas in Spain under Law 4/1989 are not based on higher or lower levels of protection, but on functions and characteristics: National parks : "natural areas, little transformed by human exploitation and occupation, that, for reason of the beauty of their landscapes, the representativeness of their ecosystems or their flora, fauna or geomorphological formations, possesses ecological, aesthetic, educational and scientific value, whose conservation merits preferential attention.