USMLE requirements: who can take each Step
To take Step 1 or Step 2 CK you must be a student or graduate of an accredited US or Canadian medical school, or of an eligible international school. Step 3 requires passing Step 1 and Step 2 CK and having an MD or DO degree. Students at US schools register through NBME; international graduates register through the FSMB as of 2026, as reported.
Sources: NBME and USMLE; IMG registration change as reported. Eligibility details vary, so confirm your route at usmle.org. Checked October 11, 2026.
| Step | Who can take it | Register through |
|---|---|---|
| Step 1 | Students and graduates of eligible medical schools | NBME (US/Canadian schools); FSMB (IMGs, as reported) |
| Step 2 CK | Same as Step 1; can be taken before or after Step 1 | Same as Step 1 |
| Step 3 | MD or DO graduates who have passed Step 1 and Step 2 CK | FSMB |
Attempts and eligibility periods
- Step 1 and Step 2 CK use three-month eligibility periods; you can extend one for $70.
- USMLE limits the number of attempts per Step; check the current attempt limit on usmle.org before retaking.
- Your medical school may set its own timing rules.
Official source & community discussion
NBME: USMLE (official) →
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