- What the OPA-C Credential Actually Is
- Who Certifies It: NBCOPA, PTC, and Prometric
- The Exam Itself: Format and Testing Rules
- The Five Content Domains and What They Weight
- Who Can Sit for It
- Fees, Windows, and Deadlines
- After You Pass: Four-Year Cycle and Practice Authority
- Where the Credential Is Used
- Preparing With the Weights in Mind
- Frequently Asked Questions
- OPA-C stands for Orthopaedic Physician's Assistant Certification, awarded by NBCOPA as Orthopedic Physician Assistant-Certified.
- The 2026 exam has 200 multiple-choice questions and 3 hours 15 minutes of testing time.
- Musculoskeletal Conditions and Treatment of Musculoskeletal Conditions each carry 30% of the exam.
- The initial exam fee is US$450; certification lasts four years and renews by reexamination or 120 CME hours.
What the OPA-C Credential Actually Is
OPA-C is the credential for orthopaedic physician's assistants: clinicians who work alongside orthopaedic surgeons in clinics, operating rooms, and hospital settings. In the 2026 candidate handbook, the title awarded is Orthopedic Physician Assistant-Certified. Passing the examination earns you the right to use the OPA-C designation after your name.
The credential is a specialty certification built around orthopaedic practice: taking a musculoskeletal history, performing a focused physical examination, interpreting imaging, assisting in surgery, and managing immobilization and nonoperative care. It is not a general primary-care PA credential, and it is not a surgical-subspecialty certification for physicians. If you want the shorter definitional versions of this topic, see our explainers on what OPA-C is and what OPA-C stands for.
Who Certifies It: NBCOPA, PTC, and Prometric
Three organizations touch the process, and candidates often blur them together:
- NBCOPA (National Board for Certification of Orthopaedic Physician's Assistants, also referenced as NBCOA) is the certifying authority. It sets the standards, awards the credential, and governs maintenance of certification.
- Professional Testing Corporation (PTC) administers the examination: applications, scheduling, score reporting.
- Prometric delivers the computer-based exam at its testing centers during published testing windows.
You may also run into the name ASOPA (the American Society of Orthopaedic Professionals / orthopaedic PA association lineage). That is a separate professional association, not the certifier. PTC states that ASOA has dissolved while NBCOPA certification continues. Treat membership organizations and the certifying board as distinct entities when you read older web pages.
The Exam Itself: Format and Testing Rules
The selected 2026 candidate handbook describes a 200-item, multiple-choice, objective examination with three hours and fifteen minutes of testing time. Questions are objective, so expect clinical-scenario stems and best-answer selection rather than essays or practicals.
| Feature | 2026 Handbook Detail |
|---|---|
| Number of questions | 200 multiple-choice items |
| Testing time | 3 hours 15 minutes |
| Delivery | Computer-based, Prometric test centers, published windows |
| Reference materials | Closed-book; no unauthorized references or electronics |
| Identification | Valid government photo ID matching your application name |
| Breaks | No scheduled breaks; permitted breaks do not pause the timer |
| Results | Pass/fail plus content-area and total scores, about four weeks after the window closes |
The no-scheduled-breaks rule matters for pacing. With 200 items in 195 minutes, you have under a minute per question on average, and any restroom break burns exam time. You also sign a confidentiality agreement, and the handbook's restrictions on references and electronics apply during the exam and during breaks.
On scoring, the retrieved 2026 materials do not publish a numeric passing threshold or a current cohort pass rate. We cover what is and isn't known in our articles on the OPA-C passing score and the OPA-C pass rate; be wary of any source quoting a precise cut score or percentage without citing NBCOPA or PTC.
The Five Content Domains and What They Weight
The exam blueprint has five formal content domains, with published weights that total 100%. These are exam objectives, not course topics, so think of them as categories of clinical competence the exam samples from.
| Domain | Weight |
|---|---|
| Anatomy and Physiology | 15% |
| Musculoskeletal Conditions | 30% |
| Orthopedic History and Physical Examination | 15% |
| Imaging and Laboratory Studies | 10% |
| Treatment of Musculoskeletal Conditions | 30% |
Musculoskeletal Conditions (30%)
Tied for the largest share. Candidates must recognize the presentation, natural history, and classification of conditions across the orthopaedic spectrum.
- Fractures and dislocations across the upper extremity, lower extremity, and spine
- Degenerative, inflammatory, and overuse conditions of joints, tendons, and ligaments
- Pediatric and adult conditions, including trauma and elective pathology
Treatment of Musculoskeletal Conditions (30%)
The other 30% block. This domain asks what you do once the diagnosis is made.
- Operative versus nonoperative management decisions
- Immobilization, casting, splinting, and bracing
- Perioperative care, surgical assisting concepts, and postoperative management
- Pharmacologic and rehabilitative approaches to musculoskeletal care
Anatomy and Physiology (15%)
The structural foundation: bone, joint, muscle, nerve, and vascular anatomy as it applies to injury patterns and surgical approaches, plus the physiology of bone healing and soft-tissue repair.
Orthopedic History and Physical Examination (15%)
Focused history taking and joint-by-joint examination: inspection, palpation, range of motion, strength and neurovascular testing, and recognizing which special tests point toward which diagnosis.
Imaging and Laboratory Studies (10%)
The smallest domain, but it supports the others: selecting and interpreting radiographs and advanced imaging, and understanding laboratory findings relevant to musculoskeletal disease and surgical readiness.
A related caution: the 2027 candidate handbook, revised September 9, 2026, shifts some weights (15/30/15/10/30 versus the older board page's 15/30/10/10/35). The weights above are from the selected 2026 handbook. For a deeper breakdown of each area, read our complete guide to the five OPA-C content areas.
Who Can Sit for It
Eligibility requires legal U.S. residency at the time of application and at the time of testing, plus one of three education pathways:
- Program completion: graduation from an orthopedic physician assistant program, a primary-care PA program, or an NP program.
- Master's-level orthopedic-assisting program: completion of a master's-level program in orthopedic assisting.
- Allied-health plus experience: completion of a related allied-health program plus five years of orthopedic work that includes surgical assisting, history and physical assessment, and immobilization under a board-certified orthopedic surgeon.
The five-year work requirement applies only to the third route, not to every pathway. All pathways require evidence of program completion and the signed verification of a supervising board-certified orthopedic surgeon. Two years of college science is recommended but not mandatory. Full details are in our OPA-C requirements guide.
Key Takeaway
Line up your surgeon verification and program-completion documents early. They are the most common practical bottleneck, because they depend on other people's schedules rather than your own study progress.
Fees, Windows, and Deadlines
Fee structure
| Item | Amount (US$) |
|---|---|
| Initial certification exam | $450 |
| Recertification by examination (includes testing-center fees and a $75 non-refundable administrative component) | $350 |
| Rescheduling within the same window (29 to 5 days before appointment) | $50 |
| One-time transfer to a new testing period | $215 |
| Optional official practice product (75 items) | $75 |
The reschedule and transfer charges are separate transactions, not routine parts of the initial-exam fee. For the full picture, see our OPA-C certification cost breakdown.
2026 testing windows
| 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 in progress and its application deadline has passed. The next published window is February 20-March 6, 2027, with an application deadline of January 20, 2027. Accommodation requests must be submitted at least eight weeks before the testing window opens. Check current scheduling details in our OPA-C exam dates guide.
After You Pass: Four-Year Cycle and Practice Authority
Certification lasts four years. To maintain it, you either retake the current examination or submit 120 CME hours, with at least 50% orthopaedic-related and at least 40 Category I hours. CME documentation is due October 31 of the renewal year, with a US$100 late fee. Older TCOPA material referencing an October 1 deadline should be disregarded; follow NBCOPA's Maintaining Certification page.
Processing fees are currently US$2 per credit for eligible NAOT or approved OPA-organization members and US$5 per credit for non-members. For a 120-credit submission, that works out to a base of US$240 for members or US$600 for non-members. The member TCOPA/NAOT PayPal checkout adds US$10, for a total of US$250.
Where the Credential Is Used
The credential is aimed at settings where orthopaedic surgeons need skilled first assistants and clinic-based extenders. Typical employers include:
- Private orthopaedic surgery practices and multi-surgeon groups
- Hospital and health-system orthopaedic departments
- Ambulatory surgery centers focused on musculoskeletal procedures
- Trauma services and specialty clinics, including sports medicine and spine
Job titles and duties vary by employer, and an orthopaedic surgeon's supervision and signature are baked into the eligibility pathway itself. Whether the credential changes your compensation or hiring prospects depends heavily on region and employer. We examine this qualitatively in our OPA-C jobs overview, salary guide, and analysis of whether the certification is worth it.
Preparing With the Weights in Mind
One point about the preparation landscape: the older issuer page states that no official study guide exists, and that one commercial guide is not approved by the board. Independent books and question banks may help you, but they are not issuer-endorsed, so cross-check content against the handbook's domain list.
The 30/30 split between conditions and treatment suggests a clear sequencing logic. Here is one way to allocate a roughly six-week runway:
Foundations: Anatomy and Physical Exam (30% combined)
- Review regional anatomy tied to fracture patterns and surgical approaches
- Drill joint-by-joint examination and special tests
The 60% core: Conditions and Treatment
- Pair each condition with its operative and nonoperative management
- Practice immobilization and perioperative scenarios
Imaging and Labs (10%)
- Link imaging choices to the conditions you've already studied
Timed practice
- Simulate the 200-question, 195-minute format with no breaks
For a fuller plan, see our OPA-C study guide, the one-page cheat sheet, and our assessment of how hard the exam is. When you're ready for timed practice questions, head to the main practice test site.
Key Takeaway
Because 60% of the exam is conditions and treatment, a candidate who is strong in those two domains but thin on imaging has more margin for error than the reverse. Prioritize accordingly, without skipping any domain entirely.
Frequently Asked Questions
OPA-C stands for Orthopaedic Physician's Assistant Certification, awarded in the 2026 handbook as Orthopedic Physician Assistant-Certified by the National Board for Certification of Orthopaedic Physician's Assistants (NBCOPA). It is distinct from the NCCPA's PA-C and from the OA-C.
The 2026 candidate handbook describes 200 multiple-choice objective questions with 3 hours 15 minutes of testing time. Older web pages citing up to 250 questions and four hours are superseded by the 2026 handbook.
The initial exam fee is US$450. Recertification by examination is US$350. Rescheduling within the same window costs US$50, and a one-time transfer to a new testing period costs US$215. See the full cost breakdown for details.
No. The credential does not by itself establish state-specific practice authorization or institutional privileges. Candidates are directed to verify those requirements separately with their state and employer.
Certification lasts four years. You renew by passing the current exam again or by submitting 120 CME hours, at least 50% orthopaedic-related and at least 40 Category I, with documentation due October 31 of the renewal year. A US$100 late fee applies after that date.