Medical Laboratory Scientist, CLS, MT, MLT, Histologist, Cytologist, Pathologist:
(ASCP) The American Society for Clinical Pathology
(AMT) American Medical Technologist
(AAB) American Association of Bio Analysts
What states require licensure to work:
California, Hawaii, Florida, New York, North Dakota, Tennessee, Louisiana, Nevada, West Virginia, Montana, Georgia, and Puerto Rico.