1. Center for Food Safety and Applied Nutrition, Office of Plant and Dairy Foods, HFS-336, U.S. Food and Drug Administration, 5100 Paint Branch Parkway, College Park, Maryland 20740-3835; Office of Regulatory Affairs, Pacific Regional Laboratory-Southwest, HFR-PA260, U.S. Food and Drug Administration, 19701 Fairchild, Irvine, California 92612-2506; and Southeast Regional Laboratory, HFR-SE660, U.S. Food and Drug Administration, 60 Eighth Street N.E., Atlanta, Georgia 30309-3959