American Registry of Radiologic Technologist
www.arrt.org/
American Society of Radiologic Technologist
www.asrt.org/
California Department of Health Services Radiologic Health Branch
www.cdph.ca.gov/programs/Pages/RadiologicHealthBranch.aspx
Radiological Society of North America
www.rsna.org/
California Society of Radiologic Technologists
www.csrt.org/
U.S. Department of Health and Human Services
www.os.dhhs.gov/
Association of Educators in Radiological Sciences
www.aers.org/