Timeline of major U.S. environmental and occupational health regulation
1916 – National Park Service Organic Act created the National Park Service. 1918 – Migratory Bird Treaty Act creates protections for migratory birds.
1916 – National Park Service Organic Act created the National Park Service. 1918 – Migratory Bird Treaty Act creates protections for migratory birds.
1916 – National Park Service Organic Act created the National Park Service. 1918 – Migratory Bird Treaty Act creates protections for migratory birds.
Source: Wikipedia "Timeline of major U.S. environmental and occupational health regulation" · CC BY-SA 4.0
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