Official COMLEX links: every NBOME page you need
Links first checked October 12, 2026 and rechecked October 21, 2026. We are not affiliated with the NBOME.
The National Board of Osteopathic Medical Examiners (NBOME) runs COMLEX-USA. These official COMLEX links are its pages for registering, testing windows and score release, eligibility, scores and percentiles, fees, practice self-assessments and the 2026-27 format changes, including Level 3’s move to a one-day exam on January 13, 2027.
The official pages
| What you need | Where |
|---|---|
| COMLEX-USA overview | NBOME: COMLEX-USA |
| Exam format for each level | Examination Format |
| Registration and cancellation rules | Registration & Scheduling |
| Eligibility and attempts | Eligibility |
| Testing windows and score release | Testing windows & score release |
| Score percentiles | Percentile Score Converter |
| Fees ($745 for Level 1 and Level 2-CE) | NBOME FAQ |
| Level 3, including the one-day format | COMLEX-USA Level 3 |
| Practice self-assessments | COMSAE |
| 2026-27 changes | Exam enhancements |
| Full rules | Bulletin of Information 2025-2026 (PDF) |
All pages run by the NBOME, checked October 21, 2026.
How to use these official COMLEX links
- Before registering: check eligibility with your college and the registration rules; cancelling late forfeits $400 of the Level 1 or 2-CE fee, or $500 for Level 3.
- Before studying: download the blueprint and try the free sample questions.
- Before Level 3: read the Level 3 page on the January 13, 2027 change to a one-day exam.
- After the exam: use the score release page and the percentile converter.
Common questions about official COMLEX sources
Where are the official COMLEX exam rules?
On the NBOME’s examination format page and in its Bulletin of Information.
Where are COMLEX fees listed?
In the NBOME’s FAQ: $745 each for Level 1 and Level 2-CE.
Where are COMLEX score release dates?
On the NBOME’s testing windows and score release dates page.
Where can I buy official practice exams?
On the NBOME’s COMSAE page; an NBOME purchase page lists $60 per form.