National Park Centennial Challenge Fund Act - Establishes in the Treasury the National Park Centennial Challenge Fund (the Challenge Fund) which shall consist of qualified donations transferred from the Donations to the National Park Service account and amounts appropriated from the general fund of the Treasury, in accordance with this Act.
Makes available all amounts deposited in the Challenge Fund to the Secretary of the Interior for signature projects and programs under this Act (projects and programs identified by the Director of the National Park Service (NPS) as those that will help prepare the national parks for another century of conservation, preservation, and enjoyment).
Requires the Secretary, acting through the Director, to develop a list of signature projects and programs eligible for funding from the Challenge Fund. Requires that such list be submitted to the President and specified congressional committees.