About

Founded in 1969 and based in Aliso Viejo, Calif., the American Association of Critical-Care Nurses (AACN) is the largest specialty nursing organization in the world. AACN joins together more than 500,000 acute and critical care nurses and claims more than 235 chapters worldwide. The organization’s vision is to create a healthcare system driven by the needs of patients and their families in which acute and critical care nurses make their optimal contribution.