Question TypesMultiple Choice (single best answer), Computer-based Case Simulations (CCS) — Step 3 Day 2 only
FormatLinear (computer-based); Adaptive for CCS
Online ProctoringNot available
ID RequirementsTwo forms of ID required. Primary: valid, unexpired government-issued photo ID (passport strongly recommended internationally). Secondary: any ID with name. Name must match USMLE registration exactly.
RenewalNot required -- USMLE scores do not expire for licensure purposes, though some state medical boards and residency programs may have time limits on Step scores.
PrerequisitesMust pass USMLE Step 1 before registering for Step 2 CK (in most programs)
Retake PolicyMust wait at least 60 days before retaking the same Step exam. Maximum 3 attempts per 12-month period. Maximum 6 total attempts per Step. Full fee required for each retake.