The American College of Radiology® (ACR®) continues to actively oppose imaging supervision or interpretation by non-physician providers. In 2002, to meet growing demand for imaging exams and optimize radiologist workload, the ACR began working with the American Society of Radiologic Technologists, American Registry of Radiologic Technologists (ARRT) and Society of Radiology Practitioners Assistants (now the Society for Radiology Physician Extenders) to create the Registered Radiologist Assistant (RRA) profession. The ACR continues to work with these organizations to ensure that these extenders work as part of a radiologist-led team.