"To protect all of Wakan Tanka's Creations for Future Generations"The Oglala Sioux Tribe adopted its Constitution and  By-Laws by referendum vote on December 10, 1935, in accordance with Section 16 of the Indian Reorganization Act of 1934.Since then the Fish and Wildlife Code has provided an orderly system for Tribal management of fish, wildlife and natural resources for the Pine Ridge Indian Reservation through the control, regulation, and enforcement of hunting, trapping, fishing, and recreational activities. It has undergone changes and updates and the most recent was in 2010 (Ordinance No. 10-11). Since its original Charter in 1973, OSPRA has taken the lead role in protecting and preserving the natural and biological resources of the Tribe.