Take a digital photo. See Digital Image Requirements in References below.
Complete the online DS-160 Nonimmigrant Visa (NIV) application form and print the confirmation page. According to the U.S Embassy, as of April 1, 2010, all non-immigrant visa applicants in Korea must complete the online application; hard-copy applications are no longer accepted.
Schedule an appointment for an interview. You may make an appointment online. (See US Visa Services in Resources below.) Note that a nonrefundable user fee applies for appointment web services. As of August 2010, you may also call to schedule the appointment by using the following numbers: 003-08-131-420 (within Korea) or 866-222-1107 (within the U.S.).
Pay the application fee. Make sure to acquire a receipt from the authorized Shinhan Bank.
Gather all required documents before the interview.
Appear in person for the interview. Take all required documents with you.
Arrange for passport delivery with your new visa once you have been approved.