• Certifications
  • CT (ARRT) - Computed Tomography RT

    • $250
    • Renews annually


    In Person


    Certified Computed Tomographers (CTs) work in imaging centers and hospitals to scan body parts. Scanned images help physicians assess and diagnose acute conditions or diseases. CT professionals balance image quality with radiation dose and help relax and educate anxious patients.

    Computed Tomorgraph (CT) certification is granted by the American Registry of Radiologic Technologists (ARRT).

    • Requires AART credential

    • Cost: $225

    • If using NMTCB as supporting category: $450

    • Updated certification standards January 1, 2020

    Course Format

    Test Format

    There are 165 graded questions based on these general categories:

    • Patient Care (22 questions)

    • Safety (20 questions)

    • Image Production (55 questions)

    • Imaging Procedures (68 questions)

    All ARRT board exams are computer-based. A tutorial at the start of the CT (AART) exam helps test-takers familiarize themselves with the question formats and testing process. 


    To earn CT certification, candidates must follow the ARRT Standards of Ethics, meet education and experience requirements, and successfully pass a computerized exam. A prerequisite certification in Radiography, Nuclear Medicine Technology, or Radiation therapy is required to become certified in CT. Technologists must also be registered with their state when they apply for the exam.

    Steps to taking the CT-AART Exam for certification:

    1. Complete a technologist education program in radiography, nuclear medicine, or radiation therapy.

    2. Become licensed in your state. 

    3. Take the AART specialty exam to become certified in your setting. 

    4. Earn an ARRT primary credential in radiography, nuclear medicine, or radiation therapy.

    5. Complete 16 hours of specialized education in CT.

    6. Complete and submit documentation of 125 procedures to validate your clinical experience.

    When these steps are completed, CT (AART) candidates must wait for an email approval to test.


    Those who don't pass the exam may retest. The re-examination fee is $200.


    ARRT requires renewal annually. Renewal costs $30 for your first discipline and $15 for any additional disciplines. Renewal is completed online.

    Must complete the Continuing Qualifications Requirements (CQRs) within three years of certification. It identifies gaps in learning and creates a long-term educational plan. CEs are required every two years.

    Renewal Fees

    • First discipline: $30

    • Renewal with additional AART certifications: $15

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

    Other Resources

    As a prerequisite to become ARRT certification and registration in CT, candidates must hold ARRT credentials in an appropriate corresponding supporting discipline. Therefore, they must already hold certification in Radiography (R), Nuclear Medicine Technology (N), or Radiation Therapy (T). In some cases, applicants may earn their supporting credential through another organization.

    The ARRT offers resources for exam candidates, including:

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    Frequently asked questions

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

    You can pursue Nuclear Medicine Technology RT (N-ARRT), Radiography RT (R-ARRT) or Radiation Therapy RT (T-ARRT), among others.

    Can I earn a CT (ARRT) online?

    No you can't earn a CT (ARRT) online.

    What organization offers the Computed Tomography RT (CT)?

    The American Registry of Radiologic Technologists (ARRT) offers the Computed Tomography RT (CT).

    What other certifications does the ARRT offer besides the Computed Tomography RT (CT)?

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

    • Bone Densitometry RT (BD)

    • 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)