- What an OT-SC Actually Is
- Who Issues It and Who Should Not Confuse It
- The Gate: Prerequisites and Verification
- What the Exam Looks Like
- The Four Exam Domains
- Registration Mechanics and Costs
- Testing Windows and Retake Rules
- Original Practice Questions
- Keeping the Credential: OTC, CEUs and Renewal
- Where OT-SC Holders Work
- Sequencing Your Prep Around the Domain Weights
- Frequently Asked Questions
- OT-SC is Orthopaedic Technologist-Surgery Certified, issued by NBCOT, and it only exists on top of a current OTC.
- The exam is 150 four-option multiple-choice questions in 3 hours, with a published passing cut score of 108.
- Intra-Operative Management carries 52% of the exam, more than the other three domains combined.
- Fees total USD 550 for new applicants: USD 450 exam plus a USD 100 nonrefundable application fee.
What an OT-SC Actually Is
OT-SC stands for Orthopaedic Technologist-Surgery Certified. It is an advanced certification for orthopaedic technologists who work in the operating room, and it is issued by the National Board for Certification of Orthopaedic Technologists, Inc. (NBCOT). It is not an entry-level credential and it is not stand-alone. You cannot hold it without also holding, and continuously maintaining, the Orthopaedic Technologist Certified (OTC) credential.
Think of OTC as the broad foundation covering orthopaedic technology in general, and OT-SC as the formal recognition that you have additional, documented surgical experience and have passed an exam focused on perioperative orthopaedic practice. If you want the shorter definitional versions of this topic, see our pages on what OT-SC is and what OT-SC stands for, and for the broader credential overview see OT-SC certification.
Who Issues It and Who Should Not Confuse It
NBCOT, the National Board for Certification of Orthopaedic Technologists, is the certifying body. It is the orthopaedic issuer, distinct from any occupational-therapy certifying board that happens to share similar initials. Candidates sometimes search for the wrong organization, so confirm that you are on nbcot.net and reading the OT-SC Examination page and the current candidate handbook.
Testing is delivered through SMT/Prometric with IsoQuality Testing (IQT) at U.S. testing centers. That means you sit the exam at a proctored center, not at home, and the center rules are strict about identification and personal items, which we cover below.
The Gate: Prerequisites and Verification
The OT-SC has real eligibility requirements, and they are the part of the process that most often delays candidates. You need:
- A current OTC certification, with evidence of current OTC status.
- At least one year of orthopaedic surgical experience.
- Notarized verification from both the attending musculoskeletal physician and the operating-room supervisor attesting to that experience.
Because two separate signers must complete notarized verification, start that paperwork early. A surgeon with a packed operating schedule and a supervisor who covers multiple rooms are not always quick to sign, and notarization adds another step. Our OT-SC requirements guide walks through eligibility in more detail.
What the Exam Looks Like
The OT-SC examination is built from 150 four-option multiple-choice questions, written in American English. You have 3 hours of examination time, and the tutorial does not count against that clock. Approved breaks do use examination time, so a break is not free.
NBCOT publishes a passing cut score of 108 on a 150-question form, established through Angoff standard setting, in which subject-matter experts judge how a minimally qualified candidate would perform on each item. This is a raw cut score on a 150-question form. It is not the scaled-700 system used by the OTC, and it is not tied to the OTC's larger item total, so do not carry numbers over from OTC preparation. For a closer look, read our OT-SC passing score breakdown.
Test-Day Rules
- The exam is closed-book. No testing aids, scratch paper, or writing instruments are allowed.
- Bring a physical government-issued photo ID and printed admission documentation. Digital substitutes are not accepted.
- Plan your breaks deliberately, since they consume examination time.
Because there is no scratch paper, anything you would normally work out on paper, such as sequencing a step list or comparing two options, has to be done in your head. Practice that way.
The Four Exam Domains
The official weighted objectives come from page 8 of the 2026 OT-SC Certification Examination Application Instruction Book (revised November 2025). These are exam objectives, not a prescribed curriculum, but they tell you where the points are. For a deeper treatment, see our complete guide to all four OT-SC content areas.
| Domain | Weight |
|---|---|
| Domain 1: Pre-Operative Management | 12% |
| Domain 2: Intra-Operative Management | 52% |
| Domain 3: Post-Operative Management | 25% |
| Domain 4: Regulatory and Ethical Responsibility | 11% |
Domain 2: Intra-Operative Management (52%)
This is the heart of the exam. More than half of your score rides on what happens in the operating room, so expect scenario-style questions about the procedure itself and your role in supporting it.
- Instrumentation, implants, and equipment handling during orthopaedic procedures
- Positioning, traction, and patient-safety considerations at the table
- Sterile technique and maintaining the sterile field
- Assisting the surgical team and anticipating the next step
Domain 1: Pre-Operative Management (12%)
The smallest of the clinical domains, but it feeds directly into intra-operative success. Questions here tend to test readiness and preparation.
- Reviewing the case, planned procedure, and required equipment
- Room and supply preparation before the patient arrives
- Verifying that items needed for the case are present and ready
Domain 3: Post-Operative Management (25%)
A substantial quarter of the exam. It covers what happens once the procedure is complete.
- Applying and checking dressings, immobilization, and supportive devices
- Patient handling and transfer after surgery
- Instruction and follow-through related to recovery
Domain 4: Regulatory and Ethical Responsibility (11%)
Smaller in weight but frequently underestimated. These are often the most straightforward points on the exam if you know the standards.
- Professional conduct and scope of practice
- Patient rights, privacy, and documentation
- Safety and compliance responsibilities in the surgical environment
Registration Mechanics and Costs
For a new applicant, the baseline cost is USD 550: a USD 450 examination fee plus a USD 100 nonrefundable application fee. Several extras can apply on top:
- A USD 100 late registration fee if you miss the regular deadline.
- A 3% surcharge on credit-card payments.
- Separate rescheduling and cancellation charges.
Credit cards are not accepted for the application fee, so plan another payment method for that portion.
Who Skips the Application Fee
The application fee, not the examination fee, is the part that can be waived in specific cases. The handbook exempts current holders who are recertifying by exam without a lapse, and candidates retesting within six months of the initial application, from the application charge. The current general examination page also grants an application-fee waiver for active-duty U.S. military candidates. None of these is a general waiver of the examination fee.
For the full cost picture, including what to budget beyond the fees, see our OT-SC certification cost breakdown.
Testing Windows and Retake Rules
Regular testing windows are offered in February, April, June, September and November. The general examination page allows active-duty military candidates to test throughout the year. Our OT-SC exam dates and deadlines page covers scheduling in more depth.
- There is no same-month retest.
- After three consecutive failures, you must wait six calendar months from your last attempt.
Given that five windows exist, working backward from your target window to set the paperwork deadline is wise, since the notarized verifications are the slowest piece.
Original Practice Questions
These are original questions written to illustrate the style, not recalled exam items. Answers follow each one.
Question 1 (Intra-Operative)
During a procedure, a sterile drape is accidentally touched by a non-sterile object. What is the most appropriate action?
- A. Continue, since the contact was brief
- B. Cover the area with a sterile towel only if it is visible
- C. Notify the team and correct the break in sterility before proceeding
- D. Wait until the end of the case to report it
Answer: C. A suspected break in sterility should be communicated and corrected immediately, not minimized or deferred.
Question 2 (Post-Operative)
After applying a circumferential cast to a recently operated limb, which finding should prompt immediate escalation?
- A. Mild warmth from the curing material
- B. Increasing pain not relieved by elevation along with numbness distal to the cast
- C. A small amount of dried padding visible at the edge
- D. Slight swelling that resolves with elevation
Answer: B. Worsening pain with distal numbness can signal neurovascular compromise and requires prompt escalation.
Question 3 (Regulatory and Ethical)
A colleague asks you to share details about a patient's case with someone who is not involved in the patient's care. What should you do?
- A. Share general details only
- B. Decline, because the person has no need to know the information
- C. Share it if the colleague vouches for them
- D. Share it if no identifying name is used
Answer: B. Patient information is shared only with those involved in care who have a legitimate need to know.
Notice the pattern: questions usually describe a realistic situation and ask for the best action. Our exam difficulty guide discusses why scenario judgment, rather than rote recall, is where candidates struggle most. You can also drill similar items on the main practice test site.
Keeping the Credential: OTC, CEUs and Renewal
Because OT-SC cannot stand alone, maintaining it means maintaining OTC without interruption. Several details trip people up:
- The initial OT-SC expiration aligns with your existing OTC expiration. It is not automatically six years from the day you passed the OT-SC exam. Later cycles run six years.
- Combined OTC/OT-SC renewal by continuing education requires 120 total approved CEUs, not 120 per credential.
- For a full cycle, at least 20 Category 1 and 20 Category 1A surgical credits are required, with the remaining 80 in approved categories.
- For the initial cycle, the Category 1A requirement is prorated to 3, 6, 9, 12, 15 or 20 credits for one through six years remaining, respectively.
- Submit renewal CEUs by October 1 of the expiration year to avoid the USD 100 late fee.
Reexamination is an alternative route to renewal, but passing the OT-SC exam alone does not automatically renew your OTC. Review the official Continuing Education Guidelines and the recertification page on nbcot.net for the current rules.
Where OT-SC Holders Work
OT-SC holders work where orthopaedic surgery is performed, which means the operating room and the settings built around it. Typical employers include hospitals with orthopaedic surgical services, ambulatory surgery centers, and orthopaedic practices that run their own procedural suites. Roles are generally tied to supporting surgical teams in the operating room.
On the question of pay, there is no credential-specific premium that can be promised, and compensation varies with employer, region, and role. If you are weighing the investment, read the OT-SC salary guide, the worth-it analysis, and our overview of OT-SC jobs before deciding.
Sequencing Your Prep Around the Domain Weights
This is an editorial suggestion, not an official curriculum. The simplest way to use the weights is to give the biggest domain the most time and the earliest start. For a fuller plan, see our OT-SC study guide and the one-page cheat sheet.
Intra-Operative Management (52%)
- Start here because it is worth more than half the exam
- Review instrumentation, implants, positioning, and sterile technique
- Practice scenario questions with no scratch paper
Post-Operative Management (25%)
- Cover immobilization, dressings, and recovery handling
- Focus on recognizing complications that require escalation
Pre-Operative and Regulatory (23% combined)
- Pair case preparation with professional and ethical standards
- These are efficient points once the larger domains are solid
Timed review
- Run full 150-question practice sets within 3 hours
- Revisit weak areas, weighting Domain 2 gaps first
Key Takeaway
Do not spread your time evenly across the four domains. With Intra-Operative Management at 52%, a gap there costs far more than a gap in Pre-Operative or Regulatory content. Fix the largest domain first.
NBCOT does not endorse commercial preparation products, so evaluate any resource, including ours, against the official handbook. For context on how candidates have fared, our pass rate article discusses the data. The Report to the Profession 2025 recorded 14 passes among 15 OT-SC candidates, rounded by the issuer to 93%, but that is a very small historical cohort and not a forecast for any future year.
Frequently Asked Questions
It stands for Orthopaedic Technologist-Surgery Certified, a certification issued by the National Board for Certification of Orthopaedic Technologists (NBCOT) for technologists with documented orthopaedic surgical experience. See also our page on what OT-SC means.
No. OT-SC is not a stand-alone credential. You need a current OTC and must keep it current continuously to maintain OT-SC.
The exam has 150 four-option multiple-choice questions over 3 hours, and NBCOT publishes a passing cut score of 108 on a 150-question form.
A new applicant pays USD 450 for the exam and USD 100 for the nonrefundable application fee, totaling USD 550, before any late fees, card surcharges, or rescheduling charges.
Intra-Operative Management, which carries 52% of the exam. Build your study plan around it, then move to Post-Operative Management at 25%.
For a final overview of the credential's basics, you can also review what OT-SC certification is and the OT-SC training page, and when you are ready to test your readiness, head to the practice test site.