Certified Bone Densitometry Technologist (CBDT®)

Certified Bone Densitometry Technologist (CBDT®) is a professional certification accredited by the National Commission for Certifying Agencies (NCCA) in the field of bone densitometry for technologists who perform bone densitometry scans. The CBDT® credential signifies that an individual has passed an examination that has been designed to meet established certification industry standards and best practices. The CBDT® Exam is offered at computer-based PSI locations worldwide and paper and pencil at designated ISCD pre-selected sites. The ISCD CBDT® examination consists of multiple-choice questions based on 5 Content Outline domains.

The CBDT® examination will have a total of 150 multiple choice questions, 125 scored and 25 pretest questions. Of the 125 scored questions, 25 will be case-based multiple choice questions. Candidates will have three and a half hours to complete the examination.


Any technologist who performs human bone densitometry scans and meets the eligibility requirements as specified in the CBDT® Handbook & Application.

What you need to know before applying for the exam:

  • All communication with candidates will be handled via e-mail only.
  • The name on your application MUST match your ID.
  • The application MUST be complete with registration fee and a signature from the candidate’s supervisor.
  • The candidate will also be required to read the following statements and agreements in full and digitally sign their agreement to all statements listed within the document.
  • Once the candidate’s application has been reviewed and accepted, candidates will be sent an eligibility confirmation through email from PSI (schedule@goamp.com). After receiving the eligibility confirmation email, the candidate is responsible for contacting PSI to schedule their appointment.
  • Approval for paper and pencil exams will be sent directly from ISCD.

Examination Results – Candidates will be notified in writing with a pass/fail score within four weeks following the date of the examination. No results will be provided by telephone, fax, or email. Scores are released ONLY to the individual candidate.

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