The AOBPM Aerospace Medicine certification exam has a remotely proctored written component of 200 multiple-choice questions in four hours and a roughly 45-minute oral component. Passing requires a scaled score of 500 on a 200-to-800 scale. This guide covers eligibility, fees, the official category weights, scoring, and a study plan matched to those weights, plus what it takes to keep the certification active.
What this certification is and who awards it
The American Osteopathic Board of Preventive Medicine (AOBPM) administers primary board certification in Aerospace Medicine. Passing all exam components leads to a recommendation for osteopathic board certification through the AOA.
The AOBPM administers primary certification exams, subspecialty certification exams, and Osteopathic Continuous Certification requirements. Aerospace Medicine is one of its primary certification specialties.
Once you pass every component of the exam, the AOBPM recommends osteopathic board certification to the American Osteopathic Association (AOA). You receive an approval letter by email, and your certificate arrives by mail within 90 days.
Official sources used: Primary Certification in Aerospace Medicine - American Osteopathic Board of Preventive Medicine — Certification Process and Osteopathic Continuous Certification
Eligibility requirements before you apply
Eligibility combines your medical school background, a two-year ACGME residency pattern, a public health degree or equivalent, an unrestricted U.S. license, and adherence to the AOA Code of Ethics.
Every criterion below comes from the certifying board's own certification exam page. Review the list early, because the residency and degree requirements take the longest to document.
- Graduation from a COCA-accredited college of osteopathic medicine or an LCME-accredited medical school in the U.S. or Canada.
- International medical graduates are also eligible if they hold a valid ECFMG certificate without expired examination dates.
- Satisfactory completion of a two-year ACGME residency: one year of Aerospace Medicine and one transitional year.
- A Master of Public Health, or an equivalent post-graduate degree, with course content covering biostatistics, epidemiology, health services management, and environmental health.
- An unrestricted license to practice in a U.S. state or territory.
- Adherence to the AOA Code of Ethics.
Official sources used: Certification Exam - American Osteopathic Board of Preventive Medicine — Eligibility, Fees, Dates, Content Outline, and Scoring
Exam format: one written and one oral component
Both components are administered remotely. The written exam is 200 multiple-choice questions in four hours; the oral exam lasts about 45 minutes and asks you to answer and explain.
The written portion is remotely proctored and gives you four hours for 200 multiple-choice questions. Of these, 100 cover core topics in the first two hours and 100 cover the specialty area in the second two.
The oral examination is also remotely proctored and lasts approximately 45 minutes. You will be required to answer and explain areas covering Aerospace Medicine, environmental topics, and clinical topics, weighted equally at 33% each. Because you must explain your reasoning aloud, spoken-answer practice belongs in your preparation rather than being an optional extra.
Official sources used: Certification Exam - American Osteopathic Board of Preventive Medicine — Eligibility, Fees, Dates, Content Outline, and Scoring
Official content categories and weights
The board publishes six content categories for primary certification, with Clinical Aerospace Medicine the largest at 45%.
The published outline for the Aerospace Medicine certification exam lists the categories and percentages below. Clinical Aerospace Medicine dominates at 45%, followed by Civil Regulation at 20% and Biomechanics at 15%. The retrieved outline gives categories and percentages only, so build your detailed topic list directly from the board's current exam content outline rather than from secondary summaries.
| Content category | Percent of the exam |
|---|---|
| Clinical Aerospace Medicine | 45% |
| Civil Regulation | 20% |
| Biomechanics | 15% |
| Specialized Areas | 10% |
| Environment of Flight | 7% |
| History | 3% |
Official sources used: Certification Exam - American Osteopathic Board of Preventive Medicine — Eligibility, Fees, Dates, Content Outline, and Scoring
Fees and the AOCOPM scholarship
The initial written and oral components together cost $1,600, and an AOCOPM scholarship may be available.
A fee of $1,600 is required for the initial written and oral components of the examination, stated as $800 for the written examination and $800 for the oral examination. Budget for both components together, since the requirement is expressed as a single total.
The American Osteopathic College of Occupational and Preventive Medicine (AOCOPM) offers scholarships to candidates who are enrolled in and pass AOBPM initial certification exams, and Aerospace Medicine is one of the eligible exams. Check AOCOPM's own materials for scholarship amounts and how to apply.
Official sources used: Certification Exam - American Osteopathic Board of Preventive Medicine — Eligibility, Fees, Dates, Content Outline, and Scoring
Exam dates and registration window
The Aerospace Medicine exam is offered every fall, and registration opens about six months before the administration.
Registration for both the written and oral exams opens approximately six months prior to the exam administration. Confirm the current year's exact dates and deadlines on the board's exam dates page rather than assuming the calendar repeats unchanged.
Official sources used: Certification Exam - American Osteopathic Board of Preventive Medicine — Eligibility, Fees, Dates, Content Outline, and Scoring
Scoring and how results are reported
Scores are scaled from 200 to 800, and 500 or higher is required to pass. Content-area results are reported separately and do not change your overall score.
The AOA reports results using standardized scaled scores, which make results comparable across different forms of the exam. The scale runs from 200 to 800, a scaled score of 500 or higher is required to pass, and 500 represents the minimum level of knowledge and skill established by the AOA certifying boards.
Your overall score is based on the total number of items answered correctly, regardless of content area. When possible, you also receive a breakdown by content area to help you identify strengths and gaps, but those content-area scores are calculated separately and are not weighted into your overall result.
Official sources used: Certification Exam - American Osteopathic Board of Preventive Medicine — Eligibility, Fees, Dates, Content Outline, and Scoring
Planning study time around the published weights
Let the official percentages drive your hour allocation, practice the written exam against a per-question clock, and rehearse spoken explanations for the oral.
The published weights are the most defensible guide to allocating study time: Clinical Aerospace Medicine at 45% deserves the largest share, while History at 3% needs only a light pass. That allocation is an editorial suggestion rather than a board requirement, but it ties your calendar to how the exam is actually weighted.
Pacing matters on the written component: four hours across 200 questions works out to 72 seconds per question, so include timed practice blocks instead of only untimed reading. For the oral component, practice answering out loud and explaining your reasoning, because the format explicitly requires you to answer and explain.
Practice exercise
Assume you have 40 hours of total preparation time and want your hours to match the official category weights. (a) How many hours should go to Clinical Aerospace Medicine? (b) On exam day, how much time will you have per written question?
Show answer
(a) 18 hours. (b) 1.2 minutes, or 72 seconds, per question.
The stated assumptions are a 40-hour plan allocated in proportion to the official percentages, and the published written-exam format. Clinical Aerospace Medicine is 45% of the outline, and 0.45 x 40 = 18 hours. The written exam gives four hours (240 minutes) for 200 questions, and 240 / 200 = 1.2 minutes, which equals 72 seconds per question.
Official sources used: Certification Exam - American Osteopathic Board of Preventive Medicine — Eligibility, Fees, Dates, Content Outline, and Scoring
Keeping the certification active
Primary certification stays active for two years from issue, provided you meet Osteopathic Continuous Certification requirements, including enrollment in the Longitudinal Assessment during your expiration year.
Your primary certification in Aerospace Medicine remains active for two years following the date of issue, provided you successfully complete Osteopathic Continuous Certification requirements. During the year your certificate expires, you must enroll in the Longitudinal Assessment for the reverification date of your certificate.
Ongoing requirements include maintaining active licensure, participating in lifelong learning and continuing medical education, completing the cognitive assessment, and completing the practice performance assessment.
Official sources used: Primary Certification in Aerospace Medicine - American Osteopathic Board of Preventive Medicine — Certification Process and Osteopathic Continuous Certification
Your next steps and official sources
Confirm eligibility, budget for the fee, watch for the registration window, and build a weighted study schedule; recheck the board's pages for current-year details.
This guide reflects the board's Aerospace Medicine certification pages as checked on 18 September 2026, and it does not carry a dated exam edition. The official pages remain the authority for current deadlines, content detail, and any policy changes.
- Check each eligibility criterion against the board's certification exam page before paying any fee.
- Note the $1,600 total fee and check whether an AOCOPM scholarship applies to you.
- Watch for registration, which opens about six months before the fall administration.
- Build a study schedule weighted to the official categories, with timed written practice and spoken oral rehearsal.
- Recheck the board's exam content outline and dates pages for current-year specifics.
Official sources used: Primary Certification in Aerospace Medicine - American Osteopathic Board of Preventive Medicine — Certification Process and Osteopathic Continuous Certification; Certification Exam - American Osteopathic Board of Preventive Medicine — Eligibility, Fees, Dates, Content Outline, and Scoring
Official sources used
Facts checked against official sources: