South Carolina does not have a state licensure law for clinical laboratory personnel, including phlebotomists.  There are several agencies that offer national certification examinations.  Most employers prefer to hire phlebotomists who have passed a recognized national examination.

American Society for Clinical Pathology (ASCP)
http://www.ascp.org/

American Society for Clinical Laboratory Science (ASCLS)
http://www.ascls.org/

American Society of Phlebotomy Technicians
http://www.aspt.org/

American Medical Technologists (AMT)
http://www.amt1.com/

National Accrediting Agency for Clinical Laboratory Sciences
http://www.naacls.org/

National Healthcareer Association (NHA)
http://www.nha2000.com/

National Phlebotomy Association (NPA)
http://www.scpt.com/NationalPhlebotomyAssociation.html