The Comprehensive Osteopathic Medical Examination (COMLEX) is a series of medical examinations that tests your basic medical and clinical knowledge. It tests similar content to the USMLE. However, COMLEX also tests your knowledge on osteopathic manual treatment (OMT).

COMLEX Level I and II is required by all DO students to graduate. COMLEX Level III is required by DOs in order to practice medicine as a physician. Generally, AOA-accredited residency programs only require COMLEX examinations for eligibility. However, Canadian citizens who wish to return to Canada to practice medicine must complete an ACGME residency to have their training recognized. We therefore encourage that Canadian citizens complete both the USMLE and COMLEX exam series.

COMLEX Level I is taken at the end of year 2.

COMLEX Level II is taken at the end of year 3.

COMLEX Level III is taken during your PGY 1 year.


Please visit the Schools and Representatives page for school-specific information

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