This report reviews the Department of the Interior's fiscal year 2000 performance report and fiscal year 2002 performance report plan required by the Government Performance and Results Act. Specifically, GAO discusses Interior's progress in achieving the following four outcomes: (1) maintaining the health of federally managed land, water, and renewable resources; (2) ensuring visitors' satisfaction with the availability, accessibility, diversity, and quality of national parks; (3) meeting the federal government's responsibility to preserve and protect Indian trust lands and resources; and (4) ensuring the safe and environmentally sound development of mineral resources. GAO could not judge the agency's progress in promoting the health of federally managed land, water, and renewable resources because the goals Interior has reported do not foster a broad or departmentwide approach to measuring progress. Although the Park Service's strategies for continuing to meet and exceed its visitor satisfaction and visitor education goals appear clear and reasonable, the agency's fiscal year 2002 performance plan lacks information on the strategic human capital management strategies to achieve this outcome. GAO cannot judge the Bureau of Indian Affairs' progress in protecting Indian trust lands and resources because the annual goals it has established are output-related and do not assess progress toward the outcome. The Minerals Management Service has had mixed results in meetings its mineral development goals. Its goals for meeting its fiscal year 2002 goals seem reasonable.