California Desert Protection Act of 1994
The California Desert Protection Act of 1994 is a federal law (Pub. L. 103–433) sponsored by Senator Dianne Feinstein, passed by the United States Congress on October 8, 1994, and signed into effect by President Bill Clinton on October 31 of the same year, that established three separate National Park System units in California's Mojave Desert: Death Valley National Park, Joshua Tree National Park, and Mojave National Preserve.
Source: Wikipedia — California Desert Protection Act of 1994 (CC BY-SA 4.0)