- How the RRT Is Actually Earned in 2026
- The 2025 Pass-Rate Data, Cohort by Cohort
- Why You Cannot Multiply These Rates Together
- What the TMC Tests and Where Candidates Struggle
- What the CSE Tests and Why Its Rates Differ
- Retake Rules and the Cost of a Miss
- The 2027 Transition and What It Means for These Numbers
- Sequencing Prep Around the Data
- Frequently Asked Questions
- Calendar-2025 TMC high-cut pass rates were 68.2% for new candidates and 29.4% for repeaters.
- CSE pass rates in 2025 were 63.6% for new candidates and 53.0% for repeaters.
- These are separate cohorts, so no single combined RRT pass probability can be derived from them.
- NBRC reported 5,196 RRT credentials awarded in 2025 across 11,086 TMC and 9,004 CSE administrations.
How the RRT Is Actually Earned in 2026
Before any pass-rate figure means anything, you need to know what the figure measures. The Registered Respiratory Therapist credential is awarded by the National Board for Respiratory Care (NBRC), and in 2026 it is not earned by a single examination. The current route requires a high cut score on the Therapist Multiple-Choice Examination (TMC), followed by a passing result on the Clinical Simulation Examination (CSE). Passing the TMC alone does not award the RRT.
That two-step structure is the reason "what is the RRT pass rate?" has no single clean answer. NBRC reports results by examination and by candidate cohort, and each number answers a different question. This article walks through the 2025 data, explains what each figure does and does not tell you, and connects the numbers to the actual content you will face. For the full path to eligibility, see our guide to RRT requirements, eligibility, and prerequisites.
The 2025 Pass-Rate Data, Cohort by Cohort
The most recent complete data comes from NBRC's 2025 Examinations in Review info sheet, which reports calendar-2025 results. Here is what it shows for the RRT pathway:
| Examination / Outcome | New Candidates | Repeat Candidates |
|---|---|---|
| TMC, high cut score (RRT-eligible) | 68.2% | 29.4% |
| TMC, low cut score (CRT-level) | 78.5% | 48.9% |
| CSE pass rate | 63.6% | 53.0% |
Reported activity volumes for the year were 11,086 TMC administrations, 9,004 CSE administrations, and 5,196 RRT credentials awarded.
Reading the TMC rows
The TMC has two cut scores. The low cut score leads to CRT-level credentialing; the high cut score is the one that makes you eligible for the CSE and, ultimately, the RRT. For new candidates, the gap between the 78.5% low-cut rate and the 68.2% high-cut rate tells you that a meaningful slice of first-time candidates clear the lower bar but not the higher one. For repeat candidates, the high-cut rate of 29.4% is strikingly low next to the 68.2% for first-timers.
Reading the CSE rows
The CSE figures sit closer together: 63.6% for new candidates and 53.0% for repeaters. The retake penalty exists but is much milder than on the TMC high cut. Only candidates who already achieved the TMC high cut can sit the CSE, so this population has already cleared one significant filter.
Numeric cut scores for the current exams are not something we can state with confidence. For what is and is not known about scoring, see our breakdown of the RRT passing score.
Why You Cannot Multiply These Rates Together
The tempting shortcut is to multiply 68.2% by 63.6% and announce an "overall RRT pass rate" of about 43%. Do not do this, and be skeptical of any source that does. The reasons are structural:
- The cohorts are different people. The calendar-2025 TMC results include candidates who never intended to pursue the RRT, such as those aiming for CRT-level credentialing, plus repeaters at various stages.
- CSE candidates are pre-filtered. Everyone sitting the CSE already earned the TMC high cut, so the CSE rate is conditional on success elsewhere.
- Timing does not line up. A candidate who passed the TMC in 2024 may have sat the CSE in 2025, and vice versa. Calendar-year rates do not follow a single class through the pipeline.
- Attempts are counted, not people. The activity totals are administrations, not unique candidates.
For a candid look at how these numbers translate into felt difficulty, read our companion piece on how hard the RRT exam really is.
What the TMC Tests and Where Candidates Struggle
The TMC's content outline (effective January 2020 through December 31, 2026) is organized under three official exam-objective headings. The scored-item allocations are specific, and they tell you where the exam's weight actually sits:
Domain 1: Patient Data (50 scored items)
Gathering, evaluating, and interpreting information about the patient: chart review, clinical findings, laboratory and diagnostic data, and hemodynamic and ventilatory measurements.
- Interpreting blood gases and pulmonary function results accurately
- Recognizing what data is missing and what is worth obtaining next
- Connecting imaging and bedside findings to a clinical picture
Domain 2: Troubleshooting and Quality Control of Devices, and Infection Control (20 scored items)
The smallest TMC allocation, but not a safe place to cut corners. It covers verifying that equipment functions properly, diagnosing malfunctions, and preventing cross-contamination.
- Ventilator and monitoring-device alarms and their likely causes
- Calibration and quality-control procedures
- Infection-control practices relevant to respiratory equipment
Domain 3: Initiation and Modification of Interventions (70 scored items)
The largest TMC allocation by far: 70 of the 140 scored items. This is where therapeutic decisions live, from airway management to ventilator adjustment to medication selection.
- Starting, adjusting, and weaning ventilatory support
- Aerosolized and systemic medication decisions
- Airway clearance, oxygen therapy, and emergency interventions
Those allocations are counts of scored items, not percentages we have computed on the issuer's behalf. What the counts do establish is that Interventions carries the most scored items on the TMC, and that Patient Data carries more than twice the weight of Troubleshooting and Infection Control. Note also that the 20 pretest items are unscored, and you cannot tell which ones they are, so every question deserves full effort.
Why do repeaters fare so poorly on the high cut? One plausible reading, offered as interpretation rather than data, is that many repeaters are already near the margin and that the high cut demands consistent performance in application-level questions rather than recall. If you are retaking, the useful move is to diagnose which of the three headings cost you points, not to reread everything. Our complete guide to the RRT exam domains maps each heading to specific study targets.
What the CSE Tests and Why Its Rates Differ
The CSE is a different instrument. Instead of 140 independent questions, you work through 20 scored interactive patient problems (plus two pretest problems), and each problem can contain multiple sections and choices. The Candidate Handbook (2026 edition) specifies a single CSE score summed across the examination. It does not set separate pass thresholds for information gathering and decision making, which matters if you had heard the older folklore about passing each component separately.
The CSE's official exam-objective headings repeat the same themes as the TMC, with deliberate wording differences:
- Domain 4: Patient Data, the CSE counterpart to Domain 1
- Domain 5: Troubleshooting and Quality Control of Equipment, and Infection Control, which says "Equipment" where the TMC heading says "Devices"
- Domain 6: Initiation and Modification of Interventions, the counterpart to Domain 3
Six is simply the heading count across the two assessments. It is not an official combined six-domain examination, and no combined TMC/CSE domain weights exist.
How the scored CSE cases are assembled
The 20 scored problems are drawn from defined assembly groups:
| Case Group | Scored Problems |
|---|---|
| Adult Chronic Airways Disease | 7 |
| Adult Medical or Surgical | 5 |
| Adult Cardiovascular | 2 |
| Pediatric | 2 |
| Neonatal | 2 |
| Adult Trauma | 1 |
| Adult Neurological or Neuromuscular | 1 |
These are case-assembly groups, not additional domain lines. Still, the distribution has a practical implication: 12 of 20 scored problems are adult chronic airways or adult medical/surgical, so COPD, asthma, and perioperative scenarios deserve disproportionate rehearsal. The pediatric and neonatal groups total four problems, which is few but enough to sink a borderline score if you ignore them entirely.
The CSE's lower retake penalty (53.0% for repeaters versus 63.6% for new candidates) may reflect the nature of the exam: problem-solving skill in structured scenarios can improve noticeably with deliberate practice, in a way that closing a knowledge gap across 140 TMC items may not.
Retake Rules and the Cost of a Miss
Pass rates only matter if you understand the consequences of a miss. The rules that govern repeating are specific:
- Three initial attempts are permitted on each examination without the subsequent-attempt waiting interval.
- Later attempts require a 120-day wait between attempts.
- Fees: the TMC costs USD 190 for a new candidate and USD 150 for a repeat; the CSE costs USD 200 whether new or repeat.
A standard first pass through both examinations totals USD 390, or USD 350 for eligible AARC members using the prescribed application process for the one-time USD 40 first-CSE discount. That total excludes education, preparation materials, membership, and licensure. Every TMC retake adds USD 150; every CSE retake adds USD 200. Given that only 29.4% of TMC high-cut repeaters passed in 2025, the financial case for preparing thoroughly the first time is strong. Our full RRT certification cost breakdown covers the complete picture, and the ROI analysis weighs those costs against the credential's career value.
The 2027 Transition and What It Means for These Numbers
The 2025 data describes a pathway that is being retired. NBRC is introducing a single Respiratory Therapy Examination effective January 2027: 185 multiple-choice questions (160 scored, 25 pretest) over four hours, priced at USD 360 for new candidates and USD 300 for repeat candidates. Lower and higher cut scores on that exam lead directly to CRT and RRT respectively. Applications opened October 1, 2026, with first examination availability on January 4, 2027.
The key transition dates for the current pathway:
- TMC applications close December 15, 2026, and TMC testing ends December 31, 2026.
- The CSE remains available through December 31, 2027, but only for the eligible transition cohort.
- The CRT-to-registry admission policy expires December 31, 2026.
One caution: issuer wording about achieving the TMC high cut "prior to December 31, 2026" conflicts with the announced final testing date. Whether a result earned on December 31 qualifies you for the transition cohort needs confirmation directly from NBRC before you rely on a last-day attempt. Conditional legacy routes, such as the CRT-experience pathways and the CSRT route, are likewise not automatically carried into the 2027 pathway.
For candidates, the implication is that the 2025 TMC and CSE rates are the best available evidence about the current exams, but they are not a forecast for the 2027 single-exam format. Do not assume the new exam will produce the same pass rates, and do not blend the future outline into your TMC/CSE preparation. Check current scheduling in our RRT exam dates and deadlines guide.
Sequencing Prep Around the Data
If the pass-rate data points to anything actionable, it is this: the TMC high cut is the gatekeeper, and repeaters struggle most there. Here is a sequence that aims preparation at where the weight and the failures concentrate, assuming a candidate still testing under the current pathway:
Interventions first (TMC Domain 3)
- It carries 70 of 140 scored items, so start where the points are
- Drill ventilator initiation, modification, and weaning logic
- Review aerosol, oxygen, and airway management decisions
Patient Data (TMC Domain 1)
- Blood gas interpretation and pulmonary function analysis
- Hemodynamic and imaging data in clinical context
Troubleshooting and Infection Control (Domain 2)
- Alarm causes, calibration, and quality-control steps
- Infection-control practices for respiratory equipment
CSE scenario work
- Prioritize adult chronic airways and adult medical/surgical cases
- Practice sequential decision making, not isolated recall
For a fuller plan, see our RRT study guide, and keep the RRT cheat sheet nearby for quick-reference review. When you are ready to test yourself against exam-style items, our RRT practice tests let you measure progress by content area, and you can start from the main practice test site at any point.
Key Takeaway
The pass-rate data rewards first-attempt preparation. With a 68.2% new-candidate TMC high-cut rate versus 29.4% for repeaters, the biggest lever you control is arriving ready the first time rather than planning to learn from a failed attempt.
Frequently Asked Questions
There is no single combined figure. NBRC reported separate cohort rates: TMC high cut was 68.2% for new and 29.4% for repeat candidates, and the CSE was 63.6% for new and 53.0% for repeat candidates. These cannot be multiplied into one overall probability.
No. In the current 2026 pathway, the TMC high cut score makes you eligible for the CSE, and you must then pass the CSE to be awarded the RRT. A low cut score on the TMC leads to CRT-level credentialing instead.
The data does not state a cause. Repeaters are a self-selected group who did not succeed previously, and the high cut score is demanding, so a lower rate is expected. Targeted remediation on your weakest heading is more effective than rereading everything.
Three initial attempts per examination are permitted without the subsequent-attempt waiting interval. After that, a 120-day wait applies between attempts. TMC retakes cost USD 150 and CSE retakes cost USD 200.
Not necessarily. The 2027 exam is a single 185-question format with different structure and fees, so the 2025 TMC and CSE cohort rates should not be treated as predictions for it. Check NBRC's resources page for transition details, and see our pass rate hub for updates.