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RTBD Exam Dates 2026: Testing Windows, Deadlines & Scheduling

TL;DR
  • The ARRT Bone Densitometry exam is delivered at Pearson VUE centers, so you schedule your own appointment after ARRT approves your application.
  • Your 16 structured education hours and 125 mandatory clinical procedures must fall inside the same 24-month qualifying window.
  • The current content specifications apply through December 31, 2026; a replacement with 19/19/37 allocations takes effect January 1, 2027.
  • The exam has 105 questions and 105 testing minutes inside a 125-minute appointment; a passing score is 75 on the 1-99 scale.

How RTBD Scheduling Actually Works

Candidates searching for "RTBD exam dates 2026" often expect a published calendar of fixed sittings, like a college entrance test with a handful of national dates. The Registered Technologist - Bone Densitometry credential from the American Registry of Radiologic Technologists (ARRT) does not work that way. It is a computer-based postprimary examination delivered through Pearson VUE testing centers, and the practical scheduling sequence looks like this:

  1. Confirm eligibility. You need a current supporting credential in Radiography, Nuclear Medicine Technology or Radiation Therapy, plus compliance with ARRT's ethics requirements.
  2. Complete the education and clinical requirements inside the qualifying 24-month window.
  3. Submit your application and fee to ARRT.
  4. Receive approval and your instructions for scheduling.
  5. Book your appointment with Pearson VUE at a testing center, choosing a date and time that suits your preparation.

The date that matters most, then, is not a date ARRT hands you. It is the date you choose after approval. That makes your personal timeline, rather than a national calendar, the real "exam schedule." For a full breakdown of who qualifies, see our guide to RTBD requirements, eligibility and prerequisites.

Identity check: On this site, RTBD refers to the ARRT postprimary Bone Densitometry (BD) credential. It is not the ISCD CBDT certification and not a state Bone Densitometry Equipment Operator examination. Those programs have their own scheduling rules, so do not apply anything from this article to them.

Why There Is No Fixed 2026 Exam Calendar

Because the exam is administered at Pearson VUE centers, availability depends on the center near you rather than on a national exam day. Several practical consequences follow:

  • Seat availability varies by location and season. Centers in smaller markets may have fewer open appointments, so booking early after approval is sensible.
  • Your appointment is yours to move. Rescheduling and cancellation terms are set out by ARRT and Pearson VUE; read the current policy in the ARRT handbook before you commit to a date.
  • Your eligibility period matters more than the calendar. After ARRT approves you, there is a defined period in which you must test. Confirm the current length of that period in the 2026 Postprimary Eligibility Pathway Handbook rather than relying on memory or forum posts.

We deliberately do not list specific appointment dates here, because any list published by a third party would be out of date quickly. The authoritative references are the ARRT Bone Densitometry credential page at arrt.org and your Pearson VUE scheduling portal.

The Timeline Before You Can Book: Education and Clinical Windows

The most common scheduling mistake is not about the exam date at all. It is miscounting the 24-month qualifying window that governs your prerequisites. Both of the following must be completed within the 24 months before you apply:

Structured Education: 16 Approved Hours

You need 16 hours of ARRT-approved structured education in bone densitometry, completed within 24 months before application.

  • At least one credit must fall in each of the three major categories: Patient Care, Image Production and Procedures.
  • The requirements document's boilerplate mentions Safety, but its table and the examination blueprint use three major categories. Do not plan around a fourth "Safety" category.
  • Keep certificates of completion; you will need them for your application.

Clinical Experience: 125 Mandatory Procedures

Clinical experience must also fall within the qualifying 24-month window, and the scanning must be performed physically onsite.

  • 25 daily quality-control activities
  • 50 lumbar-spine scans
  • 50 femur scans
  • At least three elective activity types, each completed at its specified repetitions. This is not simply three extra scans.

Because the clock runs on a rolling 24-month basis, a candidate who completes education early but delays clinical work can find the education aging out. Plan the two requirements together, and consider sequencing your clinical logging so the final procedures are signed off shortly before you apply. Our RTBD training overview covers how education and hands-on experience fit together.

Document revision note: The clinical experience requirements document carries revision v2026.07.22. Always download the current version from the ARRT Bone Densitometry credential page before logging procedures, so you are tracking the activities the current document actually requires.

The December 31, 2026 Content Specification Boundary

For anyone planning a test date in 2026, the most important calendar fact is a version boundary. The Bone Densitometry Examination Content Specifications (board approved July 2021, effective July 1, 2022, v2021.07.28) apply through December 31, 2026. A replacement set of content specifications takes effect January 1, 2027.

ItemApplies Through Dec 31, 2026Effective Jan 1, 2027
Patient Care scored questions1719
Image Production scored questions2019
Procedures scored questions3837
Topic coverageCurrent specificationsRevised topics

Both versions describe the same three major categories, but the allocations shift and some topics change. The practical rule: study from the specification version that matches the year you will actually sit. If your appointment is in 2026, use the 2022-effective specifications; if you are pushing into January 2027 or later, study the replacement. Do not blend the two while preparing.

Key Takeaway

If your preparation is running late in the fall, decide deliberately which content specification you are testing under. A test taken on December 30, 2026 and one taken on January 2, 2027 are written against different blueprints. Check your appointment date against the version boundary before you begin your final review.

For a domain-by-domain look at what each category covers, read our complete guide to the three RTBD content areas.

Fees, Reapplication and Attempt Limits

Scheduling and money are linked, because a failed attempt triggers a new fee and a new waiting decision. The figures below come from ARRT's published fee schedule as verified for this article:

ItemAmount
Application/exam fee (standard)$225 USD
Application/exam fee using NMTCB Nuclear Medicine Technology as the supporting credential$450 USD
Reapplication after an unsuccessful attempt$200
Annual ARRT registration renewal$65 (regardless of number of ARRT credentials)

Candidates are permitted three examination attempts within three years before they must requalify. That structure rewards patient scheduling: a rushed first attempt that fails consumes one of your three and costs $200 to retry. For the complete cost picture, including education and renewal, see our RTBD certification cost breakdown.

Why the three-attempt rule shapes your date: The three attempts must fit inside a three-year span. If you plan to test early and retake quickly, build in enough review time between sittings, and track the three-year window from your first attempt. Confirm the exact waiting-period rules in the current ARRT handbook before scheduling a retake.

Test-Day Logistics: 125 Minutes, 105 Questions

Knowing what the appointment looks like helps you pick a realistic time slot and manage your pacing. The format details:

  • Total questions: 105, made up of 75 scored questions and 30 unscored pilot questions. You will not know which are which.
  • Testing time: 105 minutes. This is distinct from the full 125-minute appointment, which includes check-in and administrative steps.
  • Format: primarily one-best-answer multiple choice, with other item formats permitted by the handbook possible.
  • Closed book: no notes or references.
  • Calculators: you may not bring a personal calculator, but test-center-supplied and on-screen calculator options are available.

The 75 scored questions are allocated across the three domains as 17 for Patient Care, 20 for Image Production and 38 for Procedures. Procedures is the largest category, which is why many candidates give it the most calendar time. Those counts describe the current blueprint; they should not be read as official percentages.

Domain 3: Procedures (38 scored questions)

The heaviest-weighted category rewards candidates who have genuinely worked with bone densitometry equipment and can reason through scan acquisition and analysis.

  • Scan acquisition and patient positioning for common skeletal sites
  • Analysis and reporting steps that follow acquisition
  • Quality-control routines that mirror your 25 daily QC activities

Pick an appointment time when you are mentally sharp. Because the test is 105 minutes of continuous focus after check-in, many candidates prefer morning slots, but the right choice is the one that matches your own energy. For help judging your readiness before you book, our article on how hard the RTBD exam really is sets expectations.

Building a Backward Planning Calendar

Since there are no fixed national sittings, the cleanest way to set a date is to work backward from the point you want to be certified. Use the timeline below as a template, tying each phase to a specific RTBD content area rather than generic review.

Weeks 1-2

Domain 3: Procedures

  • Start with the largest block of scored questions (38)
  • Review acquisition, positioning and analysis workflows against your logged clinical cases
  • Reread the official content specifications for 2026
Weeks 3-4

Domain 2: Image Production

  • Cover the 20 scored-question category: equipment, technique and quality control
  • Tie QC concepts to your daily QC activity logs
Week 5

Domain 1: Patient Care

  • Review the 17 scored-question category: patient communication, safety and ethics-adjacent topics
Week 6

Timed practice and gap review

  • Take full-length timed sets that mimic the 105-minute format
  • Revisit your weakest domain first

Procedures leads the schedule because it is the largest category and because it benefits most from repeated exposure. Patient Care is shortest in scored questions, but do not skip it: its questions can be quick points if you have reviewed the material. Our RTBD study guide expands this sequence, and the RTBD cheat sheet gives you a one-page review for the final days.

To gauge readiness before you pay for an appointment, run a full practice set on the RTBD practice test site. If your scores are not consistent, push the booking date rather than test early and spend a reapplication fee.

After the Exam: Scores, Renewal and CQR

Scheduling does not end when you leave the test center. Understanding what follows helps you plan the months after your appointment.

Scoring

The passing score is 75 on ARRT's 1-99 scaled-score system. That is a scaled score, not 75% correct, so do not translate it into a raw-percentage target. For a deeper explanation, see our article on the RTBD passing score. ARRT's Annual Exam Report - 2025 recorded a 66.7% first-time pass rate among 303 candidates; that is an observed 2025 cohort rather than a forecast for 2026. More context is in our RTBD pass rate analysis.

Maintaining the credential

  • Annual renewal: $65 per year, regardless of how many ARRT credentials you hold.
  • Continuing education: ordinarily 24 approved CE credits per two-year biennium.
  • Continuing Qualifications Requirements (CQR): credentials earned on or after January 1, 2011 require CQR every ten years.

Once certified, you can weigh the payoff using our RTBD salary guide and ROI analysis, or explore RTBD jobs in imaging departments, outpatient clinics and physician practices that perform DXA scanning.

Frequently Asked Questions

Is there a fixed list of RTBD exam dates for 2026?

No. The ARRT Bone Densitometry exam is delivered through Pearson VUE testing centers, and you choose your appointment after ARRT approves your application. Availability depends on your local center, so check the Pearson VUE scheduling portal for open slots.

What happens to the exam on January 1, 2027?

A replacement set of content specifications takes effect on January 1, 2027, changing the scored-question allocations to 19 for Patient Care, 19 for Image Production and 37 for Procedures, along with some topic changes. The current specifications apply through December 31, 2026. Study the version that matches your test date.

How long is the appointment versus the exam itself?

The appointment is 125 minutes, but actual testing time is 105 minutes for 105 questions. The extra time covers check-in and administrative steps. Of the 105 questions, 75 are scored and 30 are unscored pilots.

How many times can I retake the exam?

ARRT permits three examination attempts within three years before you must requalify. Reapplication after an unsuccessful attempt costs $200, so scheduling when you are well prepared is more economical than testing early.

Do my education and clinical hours expire?

Both the 16 structured education hours and the 125 mandatory clinical procedures must fall within the 24-month window before you apply. If you wait too long, earlier items can age out of the qualifying period, so coordinate the two requirements and apply promptly once both are complete.

For a broader introduction to the credential itself, start with what RTBD certification is, then return here to set your schedule.

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