We commemorate the anniversaries of many laws that have shaped the National Park Service and the system of units we manage.
- June 8, 1906: Antiquities Act
- August 25, 1916: National Park Service Act
- August 10, 1933: Reorganization
- August 21, 1935: Historic Sites Act
- June 23, 1936: Park, Parkway, and Recreation Area Study Act
- September 3, 1964: Wilderness Act
- September 3, 1964: Land and Water Conservation Fund Act of 1965
- October 15, 1966: National Historic Preservation Act
- October 2, 1968: National Trails System Act
- October 2, 1968: Wild and Scenic Rivers Act
- December 2, 1980: Alaska National Interests Lands Conservation Act (ANILCA)
Last updated: June 13, 2017