PA-COS Exam Dates 2026: Testing Windows, Deadlines & Scheduling

How PA-COS Scheduling Actually Works

Candidates searching for "PA-COS exam dates 2026" often expect a rigid calendar with a handful of application deadlines and fixed test days, the way some certifications operate. The Certified Physician Assistant - Orthopaedic Surgery pathway is different. The credential is the Certificate of Added Qualifications in Orthopaedic Surgery (CAQ-OS), issued by the National Commission on Certification of Physician Assistants (NCCPA) and held alongside your PA-C. It is not a separate initial PA certification, and the scheduling logic reflects that: you work inside a multi-year qualification window rather than racing a single annual deadline.

Testing is delivered at Pearson VUE test centers. In practice, that means your real "exam date" is the appointment you book once you are registered and eligible, subject to seat availability at your chosen center. Because specific appointment availability varies by location and season, the most reliable way to plan is to understand the fixed rules (the six-year window, the 90-day attestation deadline, the fee structure) and then build your own calendar around them. For the current mechanics, always confirm details on the NCCPA specialty certificates page before you commit money or time off work.

The Six-Year Clock: Your Real Deadline

The single most important date concept for this credential is the six-year completion period. Once you begin the process, you are allowed six years to complete the initial requirements. That window matters for three reasons.

• It sets the rolling lookback for experience. The required specialty experience is 4,000 hours in the preceding six years, so your hours are measured against the same six-year horizon.
• It sets the CME lookback. The required specialty Category I CME is 75 credits in six years, including 25 in the preceding two years. The recent-two-year component means you cannot simply bank all of your CME early and then pause.
• It caps your retake runway. Another examination attempt within that period costs $250, so the clock is also the boundary on how long you have to recover from a first miss.

Because the experience and CME lookbacks are rolling, a late-in-window test date can quietly erode your eligibility. If your 4,000 hours were mostly accumulated early in the six-year span, some of that experience may age out of the lookback. This is a strong argument for testing once your hours and CME are comfortably within range rather than treating the full six years as a leisurely schedule. For a fuller breakdown of how these thresholds fit together, see our guide to PA-COS requirements, eligibility, and prerequisites.

What Must Be Done Before You Book

Booking a Pearson VUE appointment is the easy part. The harder part is confirming you actually meet the prerequisites, because scheduling an exam you are not yet eligible for wastes both money and momentum. Before you pick a date, verify each of the following.

Note the license detail in particular: every license you hold must be unrestricted, not just the one you practice under. Candidates who maintain a secondary state license sometimes overlook this. Audit all of your licenses, not only your primary one, before you register.

Registration Steps and Fee Mechanics

The fee structure shapes how you time things financially as well as chronologically. The total is $350, made up of a $100 program registration and a $250 examination fee. The program registration is the entry point into the six-year window, while the examination fee covers an attempt. Because another attempt within the window is $250, a failed first try does not force you to repay the registration, but it does cost you the exam fee again.

NCCPA also sells a separate practice examination for $50 with 60 questions, 60 minutes, and 180-day access. That 180-day access window is itself a scheduling tool: buy it when you are roughly in the final stretch of preparation, not at the very beginning, so the access period overlaps the part of your plan where you most need a format check. Be aware that this practice exam does not provide item-by-item explanations and does not predict whether you will pass. NCCPA's free sample-question critiques, by contrast, do include explanations, so use those for learning and the paid practice exam for pacing and format familiarity.

Test Day Timing: What the Two Hours Look Like

Knowing the shape of the appointment helps you choose a sensible time slot. The initial exam contains 120 multiple-choice questions split into two blocks of 60 questions, each timed at 60 minutes. That is two hours of testing. Separately, there is a 15-minute tutorial before you begin and a 15-minute break between blocks. Plan for a total center visit longer than two hours once you include check-in and security procedures.

1. Tutorial (15 minutes): Not part of your testing time, so you do not need to rush it.
2. Block 1 (60 questions, 60 minutes): You have roughly one minute per question.
3. Break (15 minutes): Use it. Eat, hydrate, and reset.
4. Block 2 (60 questions, 60 minutes): Same pacing, with fresh attention required.

One structural detail affects how you should rehearse: review is limited to the active block. Once you finish a block or move past it, you do not get to go back and revise answers from the earlier one. That means flagging and revisiting only works within the block you are currently in. Schedule at a time of day when you perform well, since both blocks demand sustained concentration with no ability to relitigate earlier answers. For a sense of how this format feels against other exams, read our analysis of how hard the PA-COS exam is.

The 90-Day Attestation Window After Your Score Report

This is the date rule most likely to trip up otherwise well-prepared candidates. The attestation of procedures and patient-case experience is due within 90 days of the score report. A specialty physician, lead/senior PA, or physician/PA postgraduate program director who is familiar with your work must attest to your relevant procedures and patient-case experience, using NCCPA's Orthopaedic Surgery Procedures/Patient Case Attestation form.

The practical problem is not the form itself but the availability of the person signing it. Orthopaedic surgeons and lead PAs have heavy operating-room and clinic schedules, and a signature that takes weeks to obtain can consume a large share of your 90 days. Do not wait for your score report to start this conversation.

• Identify your attester before you register, and confirm they are willing and eligible.
• Make sure they are genuinely familiar with your procedure and case experience, since they are attesting to it.
• Download the current attestation form from NCCPA so your attester knows what is being asked.
• Calendar the 90-day deadline the day your score report arrives, and set an earlier internal deadline for yourself.

Retake Timing Within the Six-Year Period

Because the retake fee is $250 for another attempt within the six-year period, the strategic question is how soon to sit again after a miss. There is no benefit to rushing back before you have diagnosed what went wrong, and there is a real cost to waiting so long that your experience hours or recent CME slip out of the lookback.

If you do need a second attempt, resist the urge to simply reread everything. Instead, use the weighted structure of the blueprint to target your gaps. Fractures/Dislocations (25%) and Soft-Tissue Injuries and Disorders (25%) together account for half of the exam, and Joint Disorders adds another 20%. A candidate who is shaky in just one of those three has a large exposure. For a deeper discussion of passing thresholds and what a score really means, see our explanation of the PA-COS passing score and the available pass rate information.

Working Backward From Your Test Date

Once you have chosen a target appointment, the most effective approach is to schedule your preparation backward, giving the heaviest-weighted content the most calendar time and the earliest slots. The weights below come from NCCPA's Content Blueprint for the Orthopaedic Surgery CAQ Examination, which the issuer states is based on the 2023 PA Practice Analysis.

The blueprint also classifies questions by overlapping Task Categories, which are not additional additive domains. These include Formulating Most Likely Diagnosis (25%), Treatment/Intervention (25%), History Taking and Performing Physical Examination (20%), and Ordering and Interpreting Diagnostic and Laboratory Studies (20%). That tells you the exam leans heavily on clinical reasoning: deciding the diagnosis and the next step, not just recalling facts. Our complete guide to all 9 PA-COS content areas covers each domain in depth.

This sequence is a suggestion, not a mandate, and you should compress or stretch it to your own baseline. For a fuller approach to preparation, see our PA-COS study guide.

Ten-Year Validity and Maintenance Dates

Dates do not end once you earn the CAQ. The credential is valid for ten years. To maintain it, you must keep your PA-C and unrestricted licensure current, earn 125 specialty Category I CME credits during the cycle, and pass a maintenance examination. A ten-year cycle feels distant, but the CME requirement is large enough that spreading it across the decade is far easier than cramming it into the final stretch.

There is also a maintenance-only online option that is open-reference, with 120 questions, five minutes per question, and an approximately six-week completion window. Do not confuse this with the initial exam. The initial examination is a proctored Pearson VUE test with two 60-question, 60-minute blocks and limited block-level review; the open-reference online format applies to maintenance, not to your first qualification. Candidates who conflate the two sometimes underprepare for the closed-format initial exam.

Looking at the bigger picture, many candidates weigh these ongoing obligations when deciding whether the credential suits their career. Our ROI analysis of the PA-COS certification and salary guide discuss how orthopaedic PAs think about that tradeoff. You can also test your readiness with a full-length PA-COS practice test before committing to a date.

Frequently Asked Questions

For more on what the credential is and how it fits your career, you can also explore what PA-COS is and the broader PA-COS exam dates overview.