Congress passed the National Parks Air Tour Management Act of 2000 (NPATMA) to regulate commercial air tour operations over units of the National Park System. The Federal Aviation Administration (FAA) and the National Park Service (NPS) are jointly developing the Air Tour Management Plans (ATMP) required by this Act, with support from the U.S. Department of Transportation, John A. Volpe National Transportation Systems Center (Volpe Center). Approximately 100 park units will require an ATMP.