American Society for Clinical Pathology (ASCP) 2100 W. Harrison Street Chicago, IL 60612-3798 Phone (312) 738-1336 http://www.ascp.org | National Certifying Agency for Laboratory Personnel (NCA) P.O. Box 15945-289 Lenexa, KS, 66285 Phone (913) 438-5110 http://www.nca-info.org |