National Parks Stewardship Act

National Parks Stewardship Act - Directs the Secretary of the Interior to prohibit activities incompatible with conservation and preservation of national park resources, including action that degrades or destroys natural, cultural, or historical resources. Requires the Secretary to ensure that each artifact, document, record, and report in the permanent possession of the National Park Service (NPS) is housed, secured, maintained, organized, and made available to researchers.

Requires the Secretary of the Interior: (1) to report to Congress on national park units that face the most serious impacts on resources from proposed actions or occurrences outside unit boundaries; and (2) acting through the Director of the National Park Service, to study and report to Congress on the natural and cultural marine resources in national park units.

Requires the Secretary to report to Congress on the use of nonappropriated fund instrumentalities for the benefit of the National Park System.

Authorizes the collection of fees for admission to or for use of an area, site, project, facility, visitor center, equipment, or service under the jurisdiction of the NPS, Fish and Wildlife Service, Bureau of Land Management, Bureau of Reclamation, and Forest Service.

Authorizes challenge cost-share agreements to carry out NPS projects that are mutually beneficial to the Secretary and the cooperator and enhance NPS activities or services.

Directs the Secretary to establish a pilot Professionals for Parks Program.

Requires the Director of the Office of Personnel Management to report to Congress on qualifications for national park management positions.