Three Attempt Rule

All exam candidates will be subject to a three attempt rule. A candidate who has failed the exam on the third attempt will not be eligible for examination for two calendar years. A "no show" or withdrawal for any exam administration will not be counted as an attempt.

After a failed exam, applicants will sit for the two successive exams based on the eligibility criteria for which they were approved. If the exam is offered more than once in any calendar year, candidates may sit for each administration.

After the two-year waiting period, the candidate may submit an application for examination. Applicants applying following the two-year waiting period will apply as a new candidate and must meet prevailing eligibility requirements.


Routes of Eligibility - 2015 and 2016

All applicants must meet the specific eligibility criteria as stated.

Route 1 applicants must meet the following requirement:

  • Hold a Bachelor's Degree
  • Graduation from a Medical Dosimetry JRCERT accredited program of at least 12 months.

Please be mindful that the criteria for exam candidates to meet the Route 1 eligibility criteria is graduation from a JRCERT accredited program. Programs with pending JRCERT applications may not be approved by applicants' graduation dates.


Route 2 applicants must meet the following requirements:

  • Have a minimum of a Bachelor of Science or Bachelor of Applied Science Degree. Graduation from schools outside the U.S. or Canada will require foreign equivalency evaluation from EITHER The Foundation for International Services, Inc. (FIS), OR the International Education Research Foundation (IERF). Foreign equivalency documentation from any other organization will not be considered.


  • Completed at least 36 months (or 35 hours per week full time employment equivalent of 5,460 hours) clinical medical dosimetry experience* before the application deadline, under the direction of a certified medical dosimetrist or a medical physicist.


  • Completed 24 CE credits approved by the MDCB** during your 36 months (or 35 hours per week full time equivalent) clinical experience. The proof of completion must display the MDCB course reference number.


Eligibility For 2017


Effective for 2017, all United States candidates will be required to have a Bachelor's Degree and have graduated from a formal dosimetry program accredited by JRCERT .

International candidates (including Canada), not graduates of a JRCERT accredited program, will be required to: 

  • Hold a Bachelor of Science degree in Radiation Therapy, Radiation Science or Radiography. Foreign equivalency evaluation from EITHER The Foundation for International Services, Inc. (FIS), OR the International Education Research Foundation (IERF) is required. Foreign equivalency documentation from any other organization will not be considered. Canadian applicants will not be required to submit foreign equivalency evaluation.
  • Have achieved a minimum grade of C or 70-79% in Anatomy and/or Physiology, Brachytherapy, Clinical Lab, Computer Technology, Cross-sectional Anatomy, Radiation Oncology, Radiation Physics, Radiobiology
    and Treatment Planning.
  • Completed 1,000 clinical curriculum hours in treatment planning during Bachelor of Science degree course of study.


All re-applicants will be required to submit 8 "new" continuing education credits for each re-application attempt. Credits submitted:

  • Cannot be previously submitted for the original application or subsequent re-application.
  • Must have been completed within the three year period preceding the application deadline.
  • Can be from a review course.


*Clinical medical dosimetry experience is defined as full-time paid employment in a medical setting creating clinically deliverable treatment plans for radiation oncology patients under the direction of a physicist or CMD. This does not include corporate/vendor experience. The clinical experience must NOT be concurrent with the dosimetry schooling.

The MDCB is the sole and only judge of each candidate's qualifications to sit for the MDCB Certification Exam. In consideration of a candidate's application, the individual's moral, ethical and professional standing will be reviewed and assessed by the board. The board may make inquiry of the persons named in the application and of such persons as the board deems appropriate with respect to moral, ethical and professional standing.

**MDCB approved activities can be determined by an Activity Search at https://mdcb.learningbuilder.com.