Regional Act No. 91 on soil conservation.
The present Regional Act, in compliance with the provisions contained in Act No. 183 of 1989 and Act No. 36 of 1994: (a) lays down rules governing the establishment of basins; (b) provides for the delimitation of areas of soil protection; (c) defines the procedures to be followed to adopt river basin plans; (d) aims at the protection and preservation of water resources.