This report was greatly enhanced by input from participants at the workshop and public committee meetings held as part of this study: Ludmilla Aristilde, E. Scott Bair, Anthony R. Berger, Gor- don E. Brown, Jr., Herbert T. Buxton, Margaret Cavanaugh, Rachael Craig, Ellen Marie Douglas, Barbara L. Dutrow, Jonathan E. Ericson, Rodney C. Ewing, Robert B. Finkelman, Charles P. Gerba, Charles G. Groat, Linda . Gundersen, Mickey Gunter, Stephen C. Guptill, John A. Haynes, Ri- chard J. Jackson, Michael Jerrett, K. Bruce Jones, Ann Marie Kimball, P. Patrick Leahy, Louise S. Maranda, Perry L. McCarty, Catherine Pham, Geoffrey S. Plumlee, Donald Rice, Joshua P. Rosenthal, Carol H. Rubin, Harold H
