BD (ARRT) - Bone Densitometry RT

  • $225
  • Renews annually


In Person


Clients have an increased risk of low bone density with age. For clients at risk for osteoporosis, Radiologic Technologists (RT) perform bone density scans to determine bone health. These diagnostic tests guide the treatment plans for physicians.

The radiologic technologist who performs dual-energy X-ray absorptiometry (DEXA) testing may be eligible for the American Registry of Radiologic Technologists (ARRT) certification in Bone Densitometry (BD).

There are three pathways to apply for the various ARRT certifications. The application process and related fees are dependent on the application pathway chosen by the RT. For the BD certification, the post-primary eligibility pathway is required.


The application fee is $225 and $450 if using NMTCB as a supporting category.

Reapplication: $200


The post-primary certification requires the following prerequisites:

  • ARRT certification in a recognized supporting category. This includes radiography or nuclear medicine.

  • Completion of 16 hours of education within the 2 years before application. At least one credit hour must be in each category below:

    • Patient Care

    • Image Production

    • Procedures

  • Completion of 125 of the ARRT listed Mandatory Procedures, which includes DEXA scans and 3 elective procedures. These procedures must be verified by a certified RT, supervisor, or physician.

  • Review of the ARRT Standards of Ethics

Applications are submitted through the ARRT online account created by the candidate.


RTs will be required to update their certification annually. The deadline is the last day of the applicant’s month of birth. Renewal is available on the ARRT website.

Rt’s are required to record their continuing education every two years as part of their annual renewal process. After obtaining the initial credential, the two-year period ends on the last day of the birth month two years after certification.

The ARRT provides a detailed handbook on the requirements for continuing education.

Renewal Fees

  • First discipline: $30

  • Renewal with additional AART certifications: $15

  • Renewing without a supporting category (NMTCB, ARDMS): first post-primary discipline $45 and additional disciplines $15

Other Resources

Related Certifications

The radiologic technologist seeking additional certifications in their specialty may be interested in reviewing the following credentials offered by the ARRT:

  • Computed Tomography (CT): RTs working with clients in hospitals or imaging centers provide CT scans for injuries or disease diagnoses.

  • Magnetic Resonance Imaging (MR): Working with radiologists to ensure quality imaging durian MRI scans and related procedures.

  • Radiation Therapy (T): Administering a therapeutic dose of radiation to treat disease such as cancer.

The Medical Dosimetrist Certification Board (MDCB) offers the Certified Medical Dosimetrist (CMD) certification.

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Frequently asked questions

What are the types of skills tested on the BD certification exam??

The exam utilizes a task inventory to guide the content presented on the exam. To review, see the BD Task Inventory.

Can I substitute work experience for the education requirements?

The ARRT® doesn't allow for work experience to qualify as a substitute for the educational prerequisites. 

How do I know that my school is ARRT approved?

The ARRT provides a search tool on its website to assist applicants in verifying their school approval.

What are some certifications I can pursue after obtaining BD (ARRT) certification?

You can pursue Computed Tomography RT (CT-ARRT), Magnetic Resonance Imaging RT (MR-ARRT) or Radiation Therapy RT (T-ARRT), among others.

Can I earn a Bone Densitometry RT (BD) online?

No you can't earn a Bone Densitometry RT (BD) online.

What organization offers the Bone Densitometry RT (BD)?

The American Registry of Radiologic Technologists (ARRT) offers the Bone Densitometry RT (BD).

What other certifications does the ARRT offer besides the Bone Densitometry RT (BD)?

The American Registry of Radiologic Technologists (ARRT) also offers the following:

  • Breast Sonography RT (BS)

  • Cardiac-Interventional Radiography RT (CI)

  • Computed Tomography RT (CT)

  • Magnetic Resonance Imaging RT (MR)

  • Mammography RT (M)

  • Vascular-Interventional Radiography RT (VI)

  • Vascular Sonography RT (VS)

What other certifications should I consider after getting the Bone Densitometry RT (BD)?

After obtaining the Bone Densitometry RT (BD), you might also pursue the Certified Medical Dosimetrist (CMD).