©2026 by the American Board for Certification in Orthotics, Prosthetics & Pedorthics, Inc. All rights reserved.
No part of this document may be produced in any form without written permission of the American Board for Certification in Orthotics, Prosthetics & Pedorthics, Inc.
July 2026

Let’s take a look at how you can use the Test Content Outlines for study prep. The outlines identify the broad areas of knowledge that are tested on the certification exams. The outlines are valuable to you because they break down the various sections of the test. Use them to focus your study as you prepare for the exams. The outlines are derived from the Practice Analysis’ data on the percentage of time practitioners report performing tasks in each area of practice–called a Practice Domain. The ABC exams are designed to approximately mirror those percentages.
| Combined O&P | |
|---|---|
| Domain 1 – Patient Evaluation | 34% |
| Domain 2 – Formulation of the Treatment Plan | 25% |
| Domain 3 – Implementation of the Treatment Plan | 25% |
| Domain 4 – Continuation of the Treatment Plan | 10% |
| Domain 5 – Practice Management | 6% |
| Orthotics | Prosthetics | Combined | |
|---|---|---|---|
| Domain 1 – Patient Evaluation | 33% | 31% | 32% |
| Domain 2 – Formulation of the Treatment Plan | 21% | 20% | 21% |
| Domain 3 – Implementation of the Treatment Plan | 25% | 32% | 28% |
| Domain 4 – Continuation of the Treatment Plan | 21% | 17% | 19% |
| Orthotics | Prosthetics | Combined | |||
|---|---|---|---|---|---|
| Lower Extremity | 50% | Transtibial | 50% | Transtibial | 25% |
| Spinal | 17% | Transfemoral / KD | 33% | Lower Extremity | 25% |
| Scoliosis | 17% | Partial Foot or Symes or Upper Extremity | 17% | Transfemoral / KD | 12.5% |
| Upper Extremity or Cranial | 17% | Spinal | 12.5% | ||
| Scoliosis | 12.5% | ||||
| Partial Foot or Symes or Upper Extremity | 12.5% |
| Orthotics | Prosthetics | Combined | |||
|---|---|---|---|---|---|
| AFO Management | 36% | Transtibial Prosthetic Management | 35% | Transtibial | 19% |
| Lower Extremity Management | 34% | Transfemoral Prosthetic Management | 31% | AFO Troubleshooting | 17% |
| Spinal and Scoliosis Management | 30% | Prosthetic Troubleshooting | 34% | Lower Extremity | 17% |
| Spinal | 21% | Prosthetic Troubleshooting | 17% | ||
| Scoliosis | 9% | Transfemoral | 16% | ||
| Spinal | 14% |