ARRT CT
ARRT Computed Tomography (CT) Certification and Registration Examination
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ExploreAbout this exam
ARRT certification and registration in Computed Tomography (CT) is a postprimary credential. ARRT states its purpose is to recognize individuals qualified to perform the role of a computed tomographer. It is aimed at technologists who already hold ARRT credentials in an approved supporting discipline - in some cases that supporting credential is earned through another organization, such as a Nuclear Medicine Technology credential from the NMTCB - and candidates pursue it through ARRT's postprimary eligibility pathway. The work itself spans the whole body: some patients are being evaluated for disease or an acute condition, others arrive in an emergency so physicians can gauge the extent of injury, and the technologist balances image quality against radiation dose while informing and calming anxious patients. The exam draws on the topics listed in ARRT's CT Examination Content Specifications, while the CT Task Inventory describes the job responsibilities typically required of technologists working in CT; clinical experience and structured education requirements apply as well. To prepare, read all four discipline documents early, build an outline directly from the content specifications, then download the postprimary eligibility pathway application handbook before applying. This page is an independent study resource and is not affiliated with or endorsed by ARRT.
What you'll study
About ARRT CT preparation
Who is eligible to sit for the ARRT CT exam?
CT is a postprimary discipline, so you first need ARRT certification and registration in an approved supporting discipline. In some cases that supporting credential can come from another organization. ARRT directs CT candidates to its postprimary eligibility pathway, where education, ethics, and examination requirements are detailed.
What content does the CT exam cover?
ARRT publishes Examination Content Specifications that outline the topics appearing on its CT exams. Use that document as your authoritative outline rather than a third-party review book, since ARRT periodically revises it - the version currently posted is labeled through August 31, 2026, indicating a scheduled revision cycle.
How many questions are on the exam, how long is it, and what score do I need to pass?
Those figures are not stated on the ARRT CT page reviewed here, so we do not publish them. Download the postprimary eligibility pathway application handbook, which covers the application and exam process, or contact ARRT directly at 651.687.0048 and choose the option for earning an ARRT credential.
What is the difference between the four CT discipline documents?
Clinical Experience Requirements state the type and quantity of procedures you must complete. Structured Education Requirements cover the education activity requirements. Examination Content Specifications outline exam topics. The Task Inventory lists the job responsibilities typically required of technologists working in CT. Read all four early in your preparation.
Which version of the requirements applies to me right now?
The Clinical Experience Requirements, Structured Education Requirements, Examination Content Specifications, and Task Inventory currently posted are all labeled through August 31, 2026. ARRT also posts a revised Structured Education Requirements document effective September 1, 2026, so confirm which version governs your application timeline before you submit.
How do I actually apply?
Start by downloading the postprimary eligibility pathway application handbook from the ARRT CT page. It walks through the detailed steps of the process. If questions come up about eligibility, requirements, or applying, ARRT directs candidates to call 651.687.0048 and select the option for earning an ARRT credential.
I hold an NMTCB Nuclear Medicine Technology credential but am not an R.T. Can I still pursue CT?
Yes. ARRT states that if you are not already an R.T. but hold a Nuclear Medicine Technology credential from the Nuclear Medicine Technology Certification Board, you should complete and submit an online account access form to get started toward an ARRT CT credential.
In what order should I study?
Start with the Examination Content Specifications and turn each listed topic into an outline, then read the Task Inventory to see how those topics appear in daily practice. Layer in procedure and patient-care material as you go, and keep the clinical experience and structured education documents nearby so paperwork does not stall your application.
What are the most common ways candidates get tripped out of the exam?
Two recurring problems: studying from an outdated copy of the content specifications, and treating CT as pure physics while neglecting patient care and dose management - areas ARRT's own description of the role emphasizes. Build your plan from the current documents and revisit the specifications late in review to catch gaps.
What about exam fees, retake policy, and score reporting?
Those specifics are not stated on the ARRT CT page used for this page, so we do not quote figures. ARRT maintains a separate Application Fees page and publishes handbooks covering the process; contact ARRT at 651.687.0048 for current, authoritative answers.