This report describes the mission and activities of Performance Track, its members' achievements to date, and the goals for the future of the program. In the less than three years since it was launched, Performance Track has: -Grown to include over 300 members, from among the more than 400 that have applied; -Enlisted broad corporate support from such leaders as Johnson & Johnson, IBM, 3M, International Paper, Lockheed Martin, and Rockwell Collins; -Engaged 19 trade, professional, and environmental organizations in the Performance Track Network; -Improved environmental management systems at member facilities through site visits; -Advanced environmental performance measurement; -Created a learning community of members, government, associations, and prospective members; -Strengthened links among federal and state performance-based excellence programs; and -Developed proposals for regulatory and policy changes that allow for better environmental and business performance.