Maintenance of Certification for Radiation Oncology

Maintenance of Certification

Last verified on March 27, 2023


A brochure on MOC is available here.


Maintenance of Certification (MOC) is an integral part of the quality movement in healthcare. Patients, your physician peers, and your colleagues all value MOC because it demonstrates your support for continuous quality improvement, professional development, and quality patient care. The ABR believes in the value of Maintenance of Certification. Therefore, all ABR volunteers, including governors and trustees, are required to participate in MOC.

In 2012, the ABR implemented a new MOC process, known as Continuing Certification, for all participating MOC diplomates. The Continuing Certification method uses an annual review in March to evaluate all four MOC parts and fees and render MOC participation status. The four parts of MOC are:

Part 1: Professionalism and Professional Standing
Part 2: Lifelong Learning and Self-Assessment
Part 3: Assessment of Knowledge, Judgment, and Skills
Part 4: Improvement in Medical Practice

Certification status and MOC participation are reported publicly on the ABMS website as well as on the Verify Board Certification Status section of the ABR website.


Who Participates in MOC?

Diplomates who hold TIME-LIMITED certificates, and those with CONTINUOUS certificates issued in 2012 and thereafter, are automatically enrolled in the MOC program when they attain initial certification and may start participating immediately.

Diplomates who hold LIFETIME certificates may voluntarily enroll in the program to begin the MOC process. Enrollment can be completed by logging in to myABR.


Diplomates with Subspecialty Certification

Diplomates with a SUBSPECIALTY certificate in hospice & palliative medicine or pain medicine are automatically enrolled in the MOC program and should start participating immediately.
Diplomates may fulfill the MOC requirements to maintain their certifications in both radiation oncology and one or more subspecialty certificate areas with a single MOC program. Multiple MOC efforts are not necessary, and fees remain the same.