Subspecialties for Diagnostic Radiology

Requirements and Registration

Last verified on July 1, 2022


You must successfully complete one year of training in a nuclear radiology fellowship program or one year of training in a nuclear medicine residency program accredited by the ACGME or the RCPSC (Canada). Alternatively, with prior ABR approval, you may successfully complete the ABR alternate pathway or the 16-month pathway in nuclear radiology. Diplomates who successfully completed their training before 2019 will have 10 calendar years or until December 31, 2024, whichever comes first, to obtain certification. Those who complete their training in 2019 or later will have six calendar years.
Please comply with the following requirements:
  • The program director must document the successful completion of nuclear radiology fellowship training, nuclear medicine residency training, alternate pathway, or 16-month pathway during the candidate's diagnostic radiology residency.
  • You must provide evidence of a current state medical license with a future expiration date.
  • Before submitting a subspecialty application, you must pay any outstanding ABR fees in full.



The standard application window for the Nuclear Radiology Subspecialty Exam is July 1 through September 30. The application form is available here.

Note: Candidates taking the September 2022 Diagnostic Radiology (DR) or Interventional Radiology/Diagnostic Radiology (IR/DR) Certifying Exam can apply for the January 2023 Nuclear Radiology Subspecialty Exam. The application will be held for review/processing once the DR and IR/DR Certifying results are available.


Alternate Pathways to Subspecialty Certification

To view the alternate pathway, click here.

To view the 16-month pathway, click here.


Recognition and MOC


Recognition of Successful Diplomates

Successful ABR diplomates are awarded a continuous ABR subspecialty certificate in nuclear radiology.

Maintenance of Certification

Continuous subspecialty certification in nuclear radiology is contingent upon meeting the requirements of the ABR’s Maintenance of Certification (MOC) program. For MOC program details, please see the MOC page.
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