Maintenance of Certification

As a professional in the field of radiation oncology, the American Board of Radiology (ABR) requires you to participate with their maintenance of certification (MOC) program to facilitate professional development and quality care.

The ABR uses the MOC program to test six essential competencies developed in residency training: medical knowledge, patient care and procedural skills, interpersonal and communication skills, professionalism, practice-based learning and improvement, and systems-based practice. MOC uses four parts to evaluate these, and you must attest to meeting the requirements of each of these parts to the ABR. This must be done by March 1 each year.

The Four Parts of MOC

Part 1 – Evidence of Professional Standing

This part requires valid, unrestricted licensure in all states of practice. Any state board action against a license to the ABR must be reported within 60 days.

Part 2 – Lifelong Learning and Self-Assessment

A minimum of 75 AMA Category 1 CME credits is required every three years. At least 25 of these must be Self-Assessment CME (SA-CME). In addition to ABR-prequalified SAMs, the ABR will count all AMA Category 1 CME activities in “enduring materials” (including web-based and print) and “journal-based CME” formats toward the SA-CME requirement. You can fulfill this requirement through ACRO by attending ACRO’s Annual Meeting, the Hawaii Meeting, taking 50% discounted UCSD courses for ACRO members, or attending ACRO’s Annual Meeting virtually via live streaming.

Part 3 – Cognitive Expertise

This part requires a passing score on the MOC exam or an ABR initial certification exam (primary or subspecialty). The MOC exam is computer based and allows each participant to self-select two clinical modules based on his or her practice areas. The third module includes general radiation oncology and non-clinical skills content. The exam may be taken any time it is offered, including multiple times if necessary. Exam fees are covered by payment of MOC annual fees, so no additional exam fee is charged at the time of registration.

Part 4 – Practice Quality Improvement (PQI)

To satisfy Part 4, radiation oncologists must complete at least one Practice Quality Improvement (PQI) Project OR Participatory Quality Improvement Activity every three years. A PQI project or activity may be conducted repeatedly or continuously and may include an individual only, a group, or an institutional multidisciplinary collaboration. The ABR honors each diplomate’s privilege to choose PQI activities or projects that are pertinent to his or her practice. Being involved in the accreditation process for your radiation oncology practice counts as a PQI credit if your practice is reviewed by ACRO Accreditation. Additionally, you can download ACRO’s ABR approved PQI Template. For a full list of ABR approved PQI projects, you can visit their website here.

To help make this process as painless as possible, the ABR published a brochure to explain this in more detail. You can view this


Watch ACRO’s video with Dr. Paul Wallner and Lisa Kachnic of the ABR on Maintenance of Certification and changes on the horizon.


If you have any questions or concerns about the MOC process, you can contact ACRO by emailing or calling (206) 956-3650.