About Us

The American Registry of Radiologic Technologists (ARRT) is the world’s largest organization offering credentials in medical imaging, interventional procedures, and radiation therapy. We certify and register technologists in a range of disciplines by overseeing and administering education, ethics, and examination requirements.

We also advocate for safety and advancement in radiological sciences professions by supporting initiatives such as the Image Gently™ Alliance and by contributing to industry research studies

Learn more about us.

Our Mission

Our mission is to promote high standards of patient care by recognizing qualified individuals in medical imaging, interventional procedures, and radiation therapy. Learn more about how we support our mission

Equation For Excellence

Education + Ethics + Examination = The ARRT Equation for Excellence. Learn more about the three components to our equation and how they help prepare technologists to provide high quality patient care. 


On our governance page, you can download our governing documents, which will guide your certification and registration with ARRT. You can also learn more about our Board of Trustees. The Board governs our organization and creates our policies.


At ARRT, we're proud of our history. After our founding in 1922, we awarded our first credential that same year. Learn more about our growth and evolution. 

Our Logo

Learn more about our logo, its symbolism, and restrictions on using it.