A clinical nurse specialist must have completed a master’s degree in a clinical specialty and be a registered professional nurse. The National League of Nursing accredits educational programs in nursing and provides a testing service to evaluate student nursing competence but it does not certify nurses. The American Nurses Association identifies requirements for certification and offers examinations for certification in many areas of nursing., such as medical surgical nursing. These certification (credentialing) demonstrates that the nurse has the knowledge and the ability to provide high quality nursing care in the area of her certification. A graduate of an associate degree program is not a clinical nurse specialist: however, she is prepared to provide bed side nursing with a high degree of knowledge and skill. She must successfully complete the licensing examination to become a registered professional nurse.