Membership is limited to Certified Registered Nurse Anesthetists (CRNAs) who are members of the American Association of Nurse Anesthetists (AANA). The American Association of Nurse Anesthetists is the sole professional association of the nation's nurse anesthetists. Founded in 1931, the AANA has issued educational and practice standards and guidelines, developed and implemented a certification and mandatory re-certification program, and developed a nationally recognized program for accreditation of nurse anesthesia educational programs. The AANA is actively involved in the development of federal and state health care policy and offers consultation and other data sources regarding CRNA practice to both public and private entities. More detailed information on the practice of nurse anesthesia can be obtained by requesting a copy of the White Paper available from the American Association of Nurse Anesthetists, 222 South Prospect Ave, Park Ridge, Illinois, 60068-4001. Phone: 847-692-7050. Fax: 847-692-6968.