The American Registry for Diagnostic Medical Sonography (ARDMS), incorporated in June 1975, is an independent nonprofit organization that administers examinations and awards credentials in the areas of diagnostic medical sonography, diagnostic cardiac sonography, vascular technology,physicians’ vascular interpretation, musculoskeletal sonography and midwifery ultrasound. ARDMS has over 90,000 certified individuals in the U.S., Canada and throughout the world. ARDMS provides certifications, resources, and career information to healthcare practitioners and students practicing medical sonography.