- RRT-ACCS Exam Overview: Format, Fees, and Eligibility
- Domain Breakdown: Where the Points Actually Live
- Respiratory Critical Care: The Larger Domain
- General Critical Care: The Second Domain
- Question Style and On-Screen Tools
- A Domain-Weighted Study Timeline
- Attempt Rules, Retakes, and the 180-Day Wait
- After You Pass: Keeping the Credential Current
- Who Hires RRT-ACCS Credential Holders
- Frequently Asked Questions
- The exam has 170 questions (150 scored, 20 pretest) in 240 minutes, delivered on PSI's linear-on-the-fly platform.
- Respiratory Critical Care carries 80 scored items versus 70 for General Critical Care under the August 2026 outline - study it first.
- You need the RRT credential for at least one year before you're even eligible to apply.
- New-applicant fee is $300 ($260 with the one-time AARC member discount); reapplicants pay $250.
RRT-ACCS Exam Overview: Format, Fees, and Eligibility
The RRT-ACCS (Adult Critical Care Specialty) credential is administered by the National Board for Respiratory Care (NBRC) and delivered at PSI test centers. It's a distinct specialty exam built for respiratory therapists who already work - or want to work - in adult ICUs, and it should not be confused with any other certification that happens to share the same letters. If you're still mapping out what this credential actually covers before committing to a study plan, the RRT-ACCS Exam Domains 2026 guide is a good companion to this one.
Before you register, confirm eligibility: candidates must hold the RRT credential for at least one year prior to applying. This isn't a stepping-stone exam for new therapists - it assumes a base of clinical experience. A full breakdown of prerequisites lives in the RRT-ACCS Requirements guide.
On cost: new applicants pay $300. Reapplicants (those retaking the exam) pay $250. AARC members get a one-time $40 discount on their first application when redeemed correctly through the AARC application link, bringing that initial fee to $260. This discount does not apply to reapplication fees. For a line-by-line pricing breakdown, see the RRT-ACCS Certification Cost guide.
Domain Breakdown: Where the Points Actually Live
The current Detailed Content Outline, effective August 2026, organizes the exam into exactly two content areas. Unlike credentials with five or six subdomains, RRT-ACCS concentrates everything into two dense categories, which changes how you should allocate study time.
| Domain | Scored Items | Relative Weight |
|---|---|---|
| Respiratory Critical Care | 80 | Larger domain |
| General Critical Care | 70 | Second domain |
That 80-versus-70 split isn't dramatic, but it's meaningful when you're deciding where to spend limited review hours. Respiratory Critical Care is the heavier domain and deserves the first - and longest - block of your study calendar. For the full item-by-item breakdown of subtopics inside each domain, read the RRT-ACCS Exam Domains 2026 guide.
Key Takeaway
Don't split your study time 50/50 between domains. Respiratory Critical Care has more scored items than General Critical Care, so it should get proportionally more of your review calendar and more of your practice-question repetitions.
Respiratory Critical Care: The Larger Domain
Domain 1: Respiratory Critical Care
This domain tests your ability to manage the pulmonary side of critically ill adult patients - the bread-and-butter clinical reasoning that separates a floor therapist from an ICU specialist. With 80 of the 150 scored items, it's the single biggest lever on your final raw score.
- Advanced mechanical ventilation strategies and waveform interpretation in complex, non-textbook cases
- Airway management and rescue techniques in unstable or difficult-airway patients
- Oxygenation and ventilation troubleshooting when standard interventions fail
- Weaning and extubation readiness assessment under ICU-specific complications
Because this domain outweighs the other, candidates who under-invest here are the ones most likely to fall short on exam day. If you're trying to gauge how tough this domain feels relative to your current clinical experience, the How Hard Is the RRT-ACCS Exam guide walks through difficulty factors in more depth.
General Critical Care: The Second Domain
Domain 2: General Critical Care
This domain covers the broader ICU picture beyond the lungs - hemodynamics, multi-system complications, and the interdisciplinary judgment calls that come with managing critically ill adults alongside intensivists and nursing staff. It carries 70 scored items.
- Hemodynamic monitoring and interpretation across multiple organ systems
- Recognition and management of shock states and multi-organ dysfunction
- Pharmacologic and nutritional considerations specific to critical illness
- Interprofessional communication and care coordination in the ICU setting
Even though it's the smaller of the two domains, General Critical Care still accounts for nearly half the scored content - treating it as an afterthought is a common mistake among candidates who assume the exam is "mostly ventilators."
Question Style and On-Screen Tools
All 170 items are multiple-choice, and you won't know which 20 are the unscored pretest questions, so every item deserves full attention. The test is closed-book at the PSI center - no notes, no reference sheets. An on-screen calculator is provided within the testing software; personal calculators are not permitted. Plan your pacing carefully, because breaks do not stop the clock - the 240-minute timer keeps running whether you're at your workstation or away from it.
Passing is determined by comparing your raw score against the NBRC's cut score for that form, not a fixed percentage. Because linear-on-the-fly assembly generates a unique-but-equivalent set of items per candidate, the NBRC statistically adjusts the cut score to keep difficulty comparable across different test forms. For a deeper look at exactly how that threshold works, see the RRT-ACCS Passing Score guide.
A Domain-Weighted Study Timeline
Generic study techniques - spaced repetition, active recall, timed drills - only matter here if you apply them against the actual domain weighting. Below is a sample allocation that mirrors the 80/70 scored-item split rather than treating both domains equally.
Respiratory Critical Care Deep Dive
- Drill ventilator waveform scenarios and rescue airway decision trees
- Run timed question sets isolated to Domain 1 topics
- Review any RRT-level ventilation gaps before layering on ICU complexity
General Critical Care Immersion
- Work through hemodynamic monitoring and shock-state case studies
- Practice cross-system reasoning (renal, cardiac, nutritional overlap with respiratory status)
- Mix in interprofessional-communication scenario questions
Full-Length Mixed Practice
- Take full 170-item timed simulations to build stamina for the 240-minute window
- Review missed items by domain to see whether Respiratory or General Critical Care is your weak spot
- Finish with a light-review week rather than cramming new material
If you want a condensed, single-page reference to run through in the final days before your appointment, bookmark the RRT-ACCS Cheat Sheet 2026. And for structured practice questions organized by domain, the practice tests on our main site are built specifically around this two-domain outline.
Attempt Rules, Retakes, and the 180-Day Wait
The NBRC allows two initial attempts without any mandatory waiting period between them - useful if your first attempt reveals gaps you can quickly close. However, any attempt beyond those first two requires waiting at least 180 days before you can sit for the exam again. That's a long enough gap that a failed third attempt effectively costs you half a year of eligibility to work toward the credential, so it pays to treat your second attempt as seriously as your first.
Reapplicants pay the $250 reapplication fee each time they retake the exam (the AARC discount only applies to the first application). If you're weighing whether the investment - and the risk of a retake fee - is worth it for your career trajectory, the Is the RRT-ACCS Certification Worth It guide covers the ROI angle in detail, and the RRT-ACCS Pass Rate 2026 guide breaks down how first-time versus repeat candidates have historically performed.
Key Takeaway
Use your two initial attempts strategically - if you fail the first, diagnose exactly which domain cost you points before scheduling the second, since there's no waiting period to force a reset in preparation.
After You Pass: Keeping the Credential Current
The RRT-ACCS credential is valid for five years. To maintain it, the NBRC's Credential Maintenance Program offers a few paths: complete periodic assessments and/or accepted continuing education, pass the applicable highest-level examination again during the final year of your cycle, or earn another NBRC credential. The assessment-based route awards 0, 15, or 30 CE credits depending on how you perform, and the CE-based path runs $25 per year, or $125 across the full five-year cycle if paid annually.
Planning your registration timeline - including when to apply relative to testing windows - is covered separately in the RRT-ACCS Exam Dates 2026 guide, which is worth reviewing once you've locked in your eligibility.
Who Hires RRT-ACCS Credential Holders
Because this credential specifically validates adult critical care competency layered on top of the base RRT license, it tends to matter most to employers running high-acuity ICUs, trauma centers, and academic medical centers where respiratory therapists take on expanded roles - leading ventilator rounds, participating in rapid response and code teams, and collaborating directly with intensivists on complex vent and hemodynamic management. Some employers use it as a differentiator for charge-therapist or clinical-specialist roles rather than a baseline hiring requirement, so its practical weight can vary by institution and region. If you're evaluating how this shows up in job postings and compensation conversations, the RRT-ACCS Jobs guide and the RRT-ACCS Salary Guide 2026 are useful next reads. For a plainer explanation of what the letters mean and how the credential fits into an RT's career path, see What Is RRT-ACCS? and RRT-ACCS Meaning.
Frequently Asked Questions
The exam has 170 multiple-choice questions - 150 scored and 20 unscored pretest items - administered in a 240-minute testing window at a PSI test center.
Respiratory Critical Care, since it carries 80 scored items compared to 70 for General Critical Care under the August 2026 Detailed Content Outline. It's the larger domain and deserves the larger share of your prep time.
New applicants pay $300, or $260 if you're an eligible AARC member redeeming the one-time $40 first-application discount correctly. Reapplicants (retaking the exam) pay $250.
No. You must hold the RRT credential for at least one year before you're eligible to apply for the RRT-ACCS exam.
No. The testing platform provides an on-screen calculator, and personal calculators are prohibited. The test is closed-book, and note that breaks do not pause the 240-minute clock.
Whichever path you take through this material, treat the two-domain structure - Respiratory Critical Care and General Critical Care - as your organizing framework for every study session between now and exam day. For structured, domain-aligned practice questions to test your readiness, explore the tools available on our practice test platform.