Introduction The USMLE Step 2 CK (Clinical Knowledge) exam is a one-day assessment administered by the National Board of Medical Examiners (NBME). It evaluates a medical student's ability to apply clinical science knowledge, skills, and understanding essential for patient care under supervision, with a particular focus on illness prevention and health promotion. Eligibility Criteria for USMLE Step 2 CK The eligibility requirements for the USMLE Step 2 CK are outlined as follows: Candidates must be graduates of a US or Canadian medical school accredited by the Liaison Committee on Medical Education (LCME), or officially enrolled medical students at one of these institutions. Candidates must meet the qualifying standards established by the Educational Commission for Foreign Medical Graduates (ECFMG) and be graduates of or enrolled medical students in a medical school outside the United States and Canada listed in the World Directory of Medical Schools. Candidates must have successfully passed USMLE Step 1. Additionally, international medical students outside the US and Canada must meet the following criteria: Candidates must have current ECFMG sponsorship. To schedule the Step 2 CK exam, candidates must create an account with the NBME. After account creation, they can log in and schedule the exam. It is advisable to regularly check with the NBME for any updates or changes to the eligibility criteria. Registration for USMLE Step 2 CK To register for the USMLE Step 2 CK, candidates should follow these steps: Log in to the NBME account. Select the "Register for an Exam" link. Choose the "Step 2 CK" exam. Review eligibility criteria and exam details. Select a test date and time. Submit the registration fee. Upon successful registration, candidates will receive a scheduling permit, which must be presented at the test center on the exam day. Application for USMLE Step 2 CK To apply for the USMLE Step 2 CK, candidates must create an account with the NBME and follow these steps: Log in to the NBME account. Select the "Apply for an Exam" link. Choose the "Step 2 CK" exam. Review eligibility criteria and exam details. Complete the application form. Submit the application fee. For international medical students outside the US and Canada, additional documents such as a copy of the ECFMG certificate and sponsorship letter are required. Candidates can submit their application and accompanying materials online or by mail to the specified address.