1. Wisconsin State Laboratory of Hygiene, Madison, WI
2. Division of Public Health Partnerships, Centers for Disease Control and Prevention, Atlanta, GA
3. City of Milwaukee Health Department, Public Health Laboratories, Milwaukee, WI
4. New Hampshire Public Health Laboratories, Concord, NH
5. Public Health Laboratory, Minnesota Department of Public Health, St. Paul, MN
6. University of Vermont, Department of Medical Laboratory and Radiation Sciences, Burlington, VT
7. Laboratory Systems and Standards, Association of Public Health Laboratories, Silver Spring, MD