National Parks Capital Improvements Act of 1996 : hearing before the Subcommittee on Parks, Historic Preservation, and Recreation of the Committee on Energy and Natural Resources, United States Senate, One Hundred Fourth Congress, second session, on S. 1695 to authorize the Secretary of the Interior to assess up to $2 per person visiting the Grand Canyon or other national park to secure bonds for capital improvements to the park and for other purposes, September 12, 1996.