The U.S. Department of State plays the primary role in administering the J-1 exchange visitor program, so the first step in obtaining a J-1 visa is to submit a Form DS-2019, Certificate of Eligibility for Exchange Visitor Status, (formerly known as an IAP-66). This form will be provided by your sponsoring agency. You should work closely with the officials at your sponsoring agency who will be assisting you through this process. An official who is authorized to issue a Form DS-2019 is known as a Responsible Officer (RO) or Alternate Responsible Officer (ARO). Your RO or ARO will explain to you what documents are needed in order to be issued a DS-2019.
After you have obtained a Form DS-2019, you may then apply for a J-1 visa through the U.S. Department of State at a U.S. embassy or consulate. The waiting time for an interview appointment for applicants can vary, so submitting your visa application as early as possible is strongly encouraged (though you may not enter the United States in J1 status more than 30 days before your program begins).