IR/DR Certification

What the IR/DR Certification Actually Is

IR/DR is the American Board of Radiology's certification in Interventional Radiology/Diagnostic Radiology. It is the credential for physicians who train in image-guided, minimally invasive procedures and who also carry diagnostic radiology competence. If you are still sorting out terminology, our explainers on what IR/DR is and what IR/DR stands for cover the basics. This article focuses on the credential's structure: what you sit, in what order, what each part tests, and how to plan around it.

One clarification matters before anything else. The ABR certification described here is the only meaning of IR/DR on this site. Other credentials share the abbreviation, and their fees, dates, and exam formats do not apply to you. Every fact below traces to ABR's published guidance for the 2026 cycle.

The Three Gates: Core, Computer-Based, and Oral

Think of the credential as three sequential gates. Each is scored on its own, so passing one does not carry weight into another.

The Core figures belong to the prerequisite exam and should not be added to the Certifying Exam lines. The scored versus unscored question split is not specified in the guides for either multiple-choice exam. For a deeper look at the difficulty of the whole sequence, see how hard the IR/DR exam is.

The Ten Content Areas, Mapped to Their Sources

The ten areas used on this site come from three separate ABR documents. They are not ten unified, percentage-weighted blueprint domains, and ABR does not publish weights for them. The count of ten simply tallies the supplied module, the computer-based preparation headings, and the oral categories. Our complete guide to the IR/DR content areas goes deeper on each one.

Domain 1: the required Essentials module

Domains 2-6: the computer-based preparation headings

These five headings reproduce the top-level structure of ABR's IR/DR Certifying Exam computer-based component study guide. The guide describes possible topics rather than exhaustive coverage.

Domains 7-10: the four oral categories

These are the four actual oral-exam categories in ABR's oral component study guide. Its case examples and appendix are explicitly nonexhaustive.

The prerequisite Core exam has its own, separate scope. ABR's certification page lists breast imaging, cardiovascular imaging, computed tomography, gastrointestinal imaging, genitourinary imaging, interventional radiology, magnetic resonance imaging, musculoskeletal radiology, neuroradiology, noninterpretive skills, nuclear radiology, pediatric radiology, physics, radiography/fluoroscopy, thoracic radiology, ultrasound, and radioisotope safety content. These are listed practice topics, not a verified weighted blueprint, and within-domain percentages from the Core domain documents must not be treated as percentages of the Certifying Exam. Noninterpretive skills and radioisotope safety content also apply to certifying preparation.

Inside the Computer-Based Component

The computer-based certifying component runs as a remote, proctored session. Multiple-choice questions predominate, and ABR also describes image-location and drag-and-drop formats, so practice with image-based items rather than text-only recall.

• Environment: closed book, one monitor, a side-view webcam, and live or recorded monitoring.
• Calculator: a software calculator is supplied; personal calculators are prohibited.
• Break rule: previously viewed questions are locked after a break, so resolve flagged items before you step away.
• Delivery: ABR remote delivery and monitoring with myABR registration. The current guides do not establish a Pearson VUE or PSI testing-center arrangement.

With 178 questions in 3 hours 13 minutes, you have roughly a minute per item on average. Build your pacing around the actual clock rather than a guess, and use our practice test platform to rehearse image-heavy questions under timed conditions.

Inside the Oral Component

The oral component is the most distinctive part of IR/DR certification. Four separate examiner-led 30-minute case periods assess image interpretation, image-guided procedures, and periprocedural management. Active assessment totals 2 hours, and ABR says to plan for up to 3 hours 10 minutes including check-in and breaks. A fixed number of cases or questions is not disclosed.

It is closed book, with remote webcam monitoring and no personal calculator. Unlike some exams, IR oral does not offer a conditional pass.

Who Can Sit: Pathways and Prerequisites

ABR's certification page describes two main routes. The integrated pathway requires a clinical year plus a five-year accredited IR residency. The independent pathway follows DR residency with two years of IR training, potentially reduced to one with approved ESIR. Alternative and international-medical-graduate pathways have their own published rules.

Across routes, you need to pass Core, have verified training, hold medical licensure, and maintain professional standing. Certification eligibility lasts six full calendar years after training; that is an eligibility window, not the validity period of the certificate. Our IR/DR requirements guide walks through qualification step by step.

Fee Mechanics in USD

ABR publishes these initial certification fees, with no member/nonmember split:

Fees are nonrefundable, though ABR's published rescheduling credit rules apply. DR-certified candidates exempt from the computer-based component would not incur that line item. See the full IR/DR certification cost breakdown for planning, and our exam dates guide for scheduling and deadlines.

Scoring and What the Pass Rates Mean

ABR uses criterion-referenced standards. Each certifying component is scored as a whole and separately, and both must be passed when both are required. A numerical IR/DR-specific pass mark is not established by the sources reviewed here. The 350 figure on ABR's general scoring page is an illustrative example, not a verified IR/DR cutoff, so treat any claim of an exact passing score with caution. Our passing score article keeps this distinction explicit.

ABR's certification page reports a 2026 first-time oral pass rate of 88% among 219 examinees, with 2025 at 88% among 190. It separately reports a 2026 Core first-time resident pass rate of 93% among 1,598. These are different components and cohorts, not an overall credential pass rate, and a separate computer-based certifying pass rate was not found. Read them as component snapshots rather than a prediction of your own odds. More context is in our pass rate analysis.

The 2029 Transition

Everything above applies to the retrieved 2026 guidance. ABR's IR/DR Certifying Exam Process Update announces a DR Oral plus IR Oral process beginning in 2029 and an end to the current computer-based component after 2028. Do not apply that future structure to a 2026 attempt. The update has sections dated March 10 and December 12, 2025, and the later one changes timing discussed in the earlier one, so read them together. If you are planning a multi-year timeline, confirm the current schedule on ABR's announcements page before committing.

Keeping the Certificate: Continuing Certification

IR/DR certification is continuous and subject to ABR Continuing Certification, not a fixed five- or ten-year initial certificate. Requirements include:

• Unrestricted medical licensure.
• At least 75 Category 1 CME credits per rolling three years.
• The five-year assessment requirement, met through OLA or a Continuing Certification exam.
• One PQI project or qualifying activity per rolling three years.

Newly certified diplomates first meet the CME and PQI requirements in year four. The annual IR/DR Continuing Certification fee is $340.

Career Value and Earnings Context

Interventional radiologists work in academic medical centers, hospitals, and private practices, and certification is generally a gateway to credentialing and privileges. For a concrete earnings reference, a UC Davis Interventional Radiologist posting (JPF07749, opened September 21, 2026) lists $525,000-$575,000. That is one employer's position range, not a national average or a measured premium attributable to certification. Treat it as a single data point and see our salary guide, ROI analysis, and IR/DR jobs overview for a fuller picture.

Sequencing Your Preparation

Use the structure of the exam itself to order your work. Starting from the component you sit first, here is one way to map the ten areas to a schedule:

If you are DR-certified, compress the first weeks and spend most of your time on oral rehearsal. For broader planning, our IR/DR study guide and one-page cheat sheet complement this schedule.

Frequently Asked Questions