certification in nursing, one of two processes in which a professional organization formally recognizes the competence of a nurse to practice a subspecialty of nursing. One process, certification for excellence, bases recognition on professional achievement, advanced education, and superior performance. The second process, entry level certification, bases recognition on advanced education in a program approved by the certifying organization. Criteria vary according to the particular requirements of the professional organization but always require current licensure as a registered nurse and usually include an examination and certain educational or practice requirements. Submission and evaluation of documented clinical practice and a statement of a philosophy of practice may also be required by some professional organizations.
