- OPA-C is Orthopaedic Physician's Assistant Certification, awarded by NBCOPA and administered by Professional Testing Corporation, not NCCPA's PA-C.
- The 2026 exam has 200 multiple-choice questions in three hours fifteen minutes, with no scheduled breaks.
- Musculoskeletal Conditions and Treatment of Musculoskeletal Conditions each carry 30%, together dominating the exam.
- The initial exam fee is US$450; certification lasts four years and renews by reexamination or 120 CME hours.
OPA-C Certification at a Glance
- OPA-C Certification at a Glance
- Who Certifies, Who Administers, and Who Doesn't
- Eligibility Pathways and Required Paperwork
- Exam Format and Test-Day Rules
- The Five Exam Domains and Their Weights
- Testing Windows, Fees, and Rescheduling
- The Official 75-Item Practice Product
- Sequencing Your Preparation by Domain
- Four-Year Cycle and Recertification
- Certification Is Not Practice Authorization
- Reading Conflicting Sources Carefully
- Frequently Asked Questions
Key Takeaways
- OPA-C is Orthopaedic Physician's Assistant Certification, awarded by NBCOPA and administered by Professional Testing Corporation, not NCCPA's PA-C.
- The 2026 exam has 200 multiple-choice questions in three hours fifteen minutes, with no scheduled breaks.
- Musculoskeletal Conditions and Treatment of Musculoskeletal Conditions each carry 30%, together dominating the exam.
- The initial exam fee is US$450; certification lasts four years and renews by reexamination or 120 CME hours.
- Next published window after the 2026 cycle: February 20-March 6, 2027, with a January 20, 2027 application deadline.
The OPA-C credential is the Orthopaedic Physician's Assistant Certification, awarded in the 2026 candidate handbook as Orthopedic Physician Assistant-Certified. It is a specialty credential built around one question: can this clinician function competently in an orthopedic practice alongside a board-certified orthopedic surgeon? If you are still orienting yourself, our explainers on what OPA-C certification is and what OPA-C stands for cover the basics. This guide goes deeper into how the credential actually works: who runs it, who qualifies, what the exam looks like, and what the dates and fees mean in practice.
Because several unrelated credentials share similar letters, precision matters. This article refers only to the orthopaedic physician assistant credential administered through NBCOPA. It is not the NCCPA's PA-C, not an orthopaedic surgery CAQ, and not the OA-C credential for orthopaedic assistants. Confusing these is a common and costly mistake when researching eligibility or study materials.
Who Certifies, Who Administers, and Who Doesn't
Three organizations appear in OPA-C conversations, and each plays a different role:
- NBCOPA (National Board for Certification of Orthopaedic Physician's Assistants, also written NBCOA) is the certifying authority. It sets the eligibility rules, defines the credential, and manages maintenance of certification.
- Professional Testing Corporation (PTC) administers the examination. Applications, scheduling logistics, and score reporting run through PTC.
- Prometric delivers the exam at computer-based test centers during published testing windows.
The most reliable identity and currency check is PTC's NBCOPA sponsor page, which indexes the current handbook. When a forum post, an old PDF, or a third-party site disagrees with the dated candidate handbook, the handbook wins.
Eligibility Pathways and Required Paperwork
Candidates must be legal U.S. residents both at the time of application and at the time of testing. Beyond that, there are three education routes into the exam:
- Program completion: You completed an orthopedic physician assistant program, a primary-care PA program, or an NP program.
- Master's-level orthopedic assisting: You completed a master's-level orthopedic-assisting program.
- Allied health plus experience: You completed a related allied-health program and have five years of orthopedic work experience that includes surgical assisting, history and physical assessment, and immobilization under a board-certified orthopedic surgeon.
Every pathway requires evidence of program completion and a signed verification from the supervising board-certified orthopedic surgeon. Two years of college science coursework is recommended but not mandatory. For a deeper walk-through of qualifying scenarios, see our OPA-C requirements guide.
Exam Format and Test-Day Rules
The 2026 certification examination is a computer-based test of 200 multiple-choice objective questions with three hours fifteen minutes of testing time. That works out to a bit under a minute per question, so pacing is a real skill rather than an afterthought.
| Feature | 2026 Handbook Detail |
|---|---|
| Question count | 200 multiple-choice objective questions |
| Testing time | 3 hours 15 minutes |
| Delivery | Prometric computer-based test centers |
| Reference materials | Closed-book; no unauthorized references or electronics, including during breaks |
| Breaks | None scheduled; permitted breaks do not pause the timer |
| Identification | Valid government photo ID matching your registration |
| Confidentiality | Agreement required before testing |
| Accommodations | Requests due at least eight weeks before the testing window |
Two practical implications stand out. First, because breaks do not stop the clock, a bathroom trip costs you exam time, so practice sitting through long sessions. Second, the accommodation deadline arrives well before the application deadline, so candidates who need accommodations should start that process early rather than waiting until they register.
Results are reported by PTC as pass/fail along with content-area and total scores, roughly four weeks after the testing window closes. No public numeric passing threshold or verified current-cohort pass rate was found in the 2026 sources, so be wary of any site quoting a specific cut score or percentage. Our pages on the OPA-C passing score and OPA-C pass rate explain what can and cannot be said responsibly.
The Five Exam Domains and Their Weights
The five domains below are the official formal exam domains, with published weights totaling 100%. They are exam objectives, not a course syllabus, so they tell you what will be tested rather than how to learn it. For a longer treatment, read the complete guide to all five OPA-C content areas.
Domain 1: Anatomy and Physiology (15%)
The foundation. Questions assume you can reason from structure to function, which is what makes later clinical items answerable.
- Bone, joint, muscle, tendon, ligament, and nerve anatomy by region
- Neurovascular relationships that matter for injury patterns and surgical approaches
- Bone healing, cartilage, and connective tissue physiology
Domain 2: Musculoskeletal Conditions (30%)
Tied for the largest domain. Expect recognition and understanding of the conditions seen in an orthopedic practice.
- Fractures, dislocations, and soft-tissue injuries across the upper and lower extremity and spine
- Degenerative, inflammatory, infectious, and congenital or developmental conditions
- Pediatric versus adult presentations and typical complications
Domain 3: Orthopedic History and Physical Examination (15%)
This domain tests the clinical reasoning that precedes imaging and treatment.
- Focused orthopedic history-taking and symptom characterization
- Joint-by-joint physical examination, special tests, and neurovascular assessment
- Connecting examination findings to likely diagnoses
Domain 4: Imaging and Laboratory Studies (10%)
The smallest domain, but a practical one, since interpreting studies appropriately is routine orthopedic work.
- Selecting and interpreting radiographs and advanced imaging for common problems
- Laboratory findings relevant to infection, inflammatory disease, and preoperative evaluation
Domain 5: Treatment of Musculoskeletal Conditions (30%)
Tied for the largest domain, and the one closest to daily practice for surgical assistants and clinic PAs.
- Immobilization, casting, splinting, and bracing principles
- Operative and nonoperative management, perioperative care, and surgical assisting
- Medications, injections, rehabilitation, and complication management
Key Takeaway
Domains 2 and 5 together account for 60% of the exam. A candidate who is strong on conditions and treatment but only average on imaging can still be well positioned, while the reverse is far riskier. Weight your hours accordingly, without ignoring any content area, since PTC reports content-area scores.
Testing Windows, Fees, and Rescheduling
OPA-C testing happens in published windows, each with its own application deadline. The 2026 pairs are:
| Application Deadline | Testing Window |
|---|---|
| January 2 | February 7-21 |
| May 13 | June 13-27 |
| September 9 | October 10-24 |
As of October 15, 2026, the final 2026 window is already in progress and its application deadline has passed. The next published window falls in 2027: February 20-March 6, with a January 20, 2027 application deadline. Our OPA-C exam dates page tracks scheduling details.
Fee Mechanics
- Initial certification examination: US$450.
- Recertification by examination: US$350, which includes testing-center fees and a US$75 non-refundable administrative component.
- Rescheduling within the same window: US$50 if done 29 to 5 days before your appointment.
- One-time transfer to a new testing period: US$215.
The Official 75-Item Practice Product
The issuer offers an optional practice product with 75 items for US$75. It is useful for familiarizing yourself with item style, but its limits are worth understanding before you buy:
- It is not the 200-question certification exam, and it covers far fewer items.
- It does not provide an individual answer key, answer rationales, or item-level correctness review.
- Its score report is not a validated predictor of certification-exam performance.
Because it will not explain why an answer is right, it works best as a format check rather than a learning tool. Pair it with explanation-rich practice from elsewhere, such as the question sets at our main practice test site. Keep in mind that the older issuer page states that no official study guide exists and that a particular commercial guide is not approved. Independent study resources, including ours, are not issuer-endorsed, and you should treat them as supplements to the handbook's stated objectives.
Sequencing Your Preparation by Domain
Generic study advice is easy to find; the more useful question is how to order the five domains. One reasonable approach for a twelve-week runway builds from foundations toward the heavily weighted clinical content. For full study resources, see the OPA-C study guide.
Anatomy and Physiology (15%)
- Regional anatomy and neurovascular relationships first, since every later domain leans on them
- Bone healing and connective tissue physiology
Musculoskeletal Conditions (30%)
- Give this the longest block; it is tied for the largest weight
- Work region by region: shoulder, elbow, hand, spine, hip, knee, foot and ankle, plus pediatric conditions
History/Physical Exam and Imaging/Labs (25% combined)
- Pair examination findings with the imaging you would order to confirm them
- Review lab patterns for infection, inflammatory disease, and preoperative workup
Treatment of Musculoskeletal Conditions (30%)
- Immobilization, surgical assisting, perioperative care, and complication management
- Link each treatment back to the condition it addresses from weeks 3-6
Full-Length Timing Practice
- Simulate 200 questions in three hours fifteen minutes with no scheduled break
- Review misses by domain, since content-area scores are reported
Finding the right intensity depends on your background. A candidate who graduated from an orthopedic PA program recently will face a different gap than an allied-health professional returning to formal study after years in the operating room. Our overview of how hard the OPA-C exam is can help you gauge where you stand.
Four-Year Cycle and Recertification
OPA-C certification lasts four years. To renew, you choose one of two routes:
- Reexamination: sit the current certification exam again (US$350 by examination).
- Continuing medical education: submit 120 CME hours, at least 50% orthopaedic-related and at least 40 Category I hours.
CME submission is due October 31 of the renewal year, with a US$100 late fee. Disregard older materials citing an October 1 deadline; the current NBCOPA/NBCOA Maintaining Certification page governs.
| CME Processing Fee Basis | Per Credit | 120-Credit Base Total |
|---|---|---|
| Eligible NAOT/approved OPA-organization member | US$2 | US$240 |
| Non-member | US$5 | US$600 |
The listed member TCOPA/NAOT PayPal checkout adds US$10, bringing the member total to US$250. The gap between member and non-member totals is large enough that organizational membership may pay for itself on renewal alone, depending on your situation.
Certification Is Not Practice Authorization
This matters for career planning. Orthopedic surgeons, surgical groups, and hospitals that employ orthopedic physician assistants may each have their own credentialing expectations layered on top of the certification. Before investing in the exam, talk to your supervising surgeon or prospective employer about what they require. If you are weighing the commitment, our analyses of whether the OPA-C is worth it, the OPA-C salary picture, and OPA-C jobs look at the career side.
Reading Conflicting Sources Carefully
If you research OPA-C online, you will find sources that disagree. The older NBCOPA Board Certification page describes up to 250 questions, four hours, a different testing vendor, as-needed scheduling, and a different set of domain weights. This article follows the dated 2026 Candidate Handbook instead, which specifies 200 questions, 195 minutes, and the 15/30/15/10/30 weighting shown above.
A separate 2027 handbook, revised September 9, 2026, also lists 200 questions, 195 minutes, and the same weights, but it governs future-year testing and is not substituted here for the 2026 edition. If you are testing in 2027, check the 2027 handbook for any changes to dates and ancillary fees. The general rule: always match your source to the handbook edition covering your testing year, and treat undated third-party summaries with caution.
Frequently Asked Questions
No. PA-C is awarded through NCCPA. OPA-C is the Orthopaedic Physician's Assistant Certification from NBCOPA, administered by Professional Testing Corporation. They are separate credentials with separate eligibility rules and exams.
The 2026 handbook specifies 200 multiple-choice objective questions in three hours fifteen minutes. There are no scheduled breaks, and any permitted break does not pause the timer.
Musculoskeletal Conditions and Treatment of Musculoskeletal Conditions are tied at 30% each. Anatomy and Physiology and Orthopedic History and Physical Examination are 15% each, and Imaging and Laboratory Studies is 10%.
No public numeric passing threshold was verified in the retrieved 2026 sources. PTC reports pass/fail plus content-area and total scores about four weeks after the testing window closes, so be skeptical of any site quoting a specific cut score.
Only on the allied-health pathway. Graduates of orthopedic PA, primary-care PA, NP, or master's-level orthopedic-assisting programs qualify through their education. All pathways still need program-completion evidence and the supervising orthopedic surgeon's signed verification.