MOC Marketplace

Get answers to your MOC-related questions and easy access to ACR learning activities that help fulfill MOC requirements. The MOC Marketplace is your gateway to the resources, references and recommendations you need to navigate through the ABR Maintenance of Certification process. 

Maintenance of Certification — Who, What and Why?

Each of the 24 specialty boards has implemented an MOC program as evidence of a lifelong commitment to continuous competency in a chosen specialty area. All of the boards — including the ABR — are guided by a four-part MOC structure:

  1. Professional Standing (proof of valid license)
  2. Lifelong Learning and Self-assessment
  3. Cognitive Expertise (board examination)
  4. Practice Quality Improvement
MOC demonstrates to your colleagues, peers, patients, and the general public your commitment to maintenance of competency, lifelong learning and quality improvement — throughout your professional career.

Who is required to enroll in MOC?

ABR-certified diplomates who hold a time-limited certificate or a continuous certificate  issued in 2012 or later with no ‘valid-through’ date are automatically enrolled in MOC. Visit the ABR website for more information.

Continuous certification simplifies the recertification process by linking valid certification to the fulfillment of MOC requirements. This eliminates the former 10-year cycle, making ongoing certification now contingent upon satisfaction of the four-part MOC structure:

  1. Professional Standing (proof of valid license)
  2. Lifelong Learning and Self-assessment
  3. Cognitive Expertise (board examination)
  4. Practice Quality Improvement

Diplomates who hold lifetime certificates  are strongly encouraged but are not required to demonstrate an ongoing commitment to lifelong learning by participating voluntarily.

Visit the ABR for details on certification, recertification and dual certification.

How ACR Can Help
ACR has a robust platform of need- and evidence-based learning activities designed to enhance your knowledge, improve performance, and help satisfy Part II and Part IV requirements for recertification.

Annual MOC Attestation

Diplomates should complete their annual MOC attestations between January 1 and March 1 each year. The ABR will check the attestations of all diplomates on March 2 to determine each individual’s MOC public reporting status.

Diplomates only need to attest to the fact that they have met each of the requirements for Parts 1, 2 and 4 of MOC. Detailed data is no longer required. However, participants should keep records of completion for all MOC activities in the event they are randomly selected for an audit. Attestation along with an instructional video are located within your myABRaccount.


The information below is designed to provide answers to your questions regardingPart II: Lifelong Learning and Self-assessment and Part IV: Practice Quality Improvement.

What are ABR’s requirements for Part II MOC: Lifelong Learning and Self-Assessment?

At a minimum, 75 AMA PRA Category 1 Credits™ (CME) are required for recertification every three years. Twenty-five of those CME Credits must meet the criteria for Part II, self-assessment.

Previously, self-assessment credits could only be earned with an ABR pre-qualified self-assessment module (SAM). SAMs are comprised of both live and enduring* activities.

Beginning January 1, 2013, the ABR expanded the criteria for the required 25 self-assessment credits to also include credits earned through CME-certified enduring activities.*

Under this new umbrella of Part II MOC self-assessment, to satisfy the Part II requirement, diplomates can use CME credits earned from enduring activities as SA-CME, and/or SAM Credit that has been prequalified by the ABR, from both live and enduring activities.

*Enduring activities include online, print and/or CD/DVD programs.

What is the difference between SAM Credit and SA-CME?

Although both SA-CME and SAM Credit count toward the MOC Part II requirement, there are differences:

SA-CME applies only to enduring materials and journal articles claimed for CME (AMA PRA Category 1 Credit™) beginning January 1, 2012.

CME Credits awarded for each of the ACR enduring activities highlighted below are also designated SA-CME , so the CME Credits you earn also are counted toward the requirements for MOC Part II: Lifelong Learning and Self-assessment:

Case in Point







JACR CME Articles







Lung Cancer Screening



SAM Credit (Self-assessment Modules)

A SAM is a self-assessment activity that is prequalified for SAM Credit by the ABR, or by ACR, an ABR Deemed Status Provider.

ACR activities that are currently pre-qualified as SAMs include:

Education Center


Is SA-CME Credit retroactive?

Yes. CME Credits earned for enduring materials that were claimed on January 1, 2012, and later, also may be counted as SA-CME toward the MOC Part II requirement for self-assessment.

I need proof of my participation. How is my SA-CME Credit recorded?

You may use your ACR AMA PRA Category 1™ CME Credit award certificate as documentation of your participation in an ACR enduring activity. ACR CME activities that meet the ABR SA-CME Credit guidelines include the following language in the activity description and on the credit award certificate:

Credits awarded for this enduring activity are designated “SA-CME” by the American Board of Radiology (ABR) and qualify toward fulfilling requirements for Maintenance of Certification (MOC) Part II: Lifelong Learning and Self-assessment.

The ACR recently completed technical modifications for the CME Gateway feed to display SA-CME. You may contact the ABR with questions regarding your myABR transcript.

What are ABR’s requirements for Part IV MOC: Practice Quality Improvement (PQI)?

With the implementation of Continuous Certification and its annual look-back approach, diplomates must have completed at least one PQI Project or Participatory Quality Improvement Activity in the previous three years at each annual look-back. A PQI Project or Activity may be conducted repeatedly or continuously to meet PQI requirements. Please visit the ABR website for more information regarding Part IV MOC requirements.

What is the difference between PQI Projects and Participatory Quality Improvement Activities?

A Participatory Quality Improvement Activity is an activity which a diplomate is already performing as part of their practices or voluntary professional efforts that may be reasonably expected to contribute directly to, or increase likelihood of advancement or improvement of quality and/or safety in health care. In 2015 the ABR defined 16 appropriate Participatory Quality Improvement Activities.

A Practice Quality Improvement (PQI) Project is a framework to facilitate improvement of medical care and/or its delivery for an individual, group or institution. ABR diplomates must select a PQI project that is relevant to their practice, is achievable in a practice setting, produces measurable results that are suitable for repeated measurements, and is able to effect quality improvement. Any methodology or algorithm for project design leading to improvement in diplomates’ practices will be accepted.

How does the ACR facilitate MOC Part IV requirements?

Participation in several ACR National Radiology Data Registries (NRDR) may be used as the basis for an ABR PQI project:




CT Colonography Registry

Dose Index Registry

General Radiology Improvement Database

National Mammography Database

Where can I find more information on MOC?