Founded in 1931, the American Association of Nurse Anesthetists (AANA) is the professional association representing more than 50,000 Certified Registered Nurse Anesthetists (CRNAs) and student nurse anesthetists nationwide (or approximately 90 percent of all U.S. nurse anesthetists). The AANA promulgates education and practice standards and guidelines, and affords consultation to both private and governmental entities regarding nurse anesthetists and their practice. The AANA staff is headquartered in Park Ridge, Ill., with a federal government affairs office in Washington, D.C. Please note that not everyone listed under the heading ïformer employeesÍ is or was actually employed by the AANA, but instead may be or may have been a volunteer committee member or other staff advisor.