For Step 2 CK, the rules are the same as the USMLE step 1 examination. Students will have to choose a three-month eligibility period and appear for the USMLE exam dates in those months. As per USMLE regulations, students cannot choose the first fortnight of January or major public holidays as their USMLE dates for eligibility.
The eligibility period for USMLE Step 2 CS examination is 12 months as students will have to go to the USA to take the said examination.