The Certificate of Eligibility for Nonimmigrant J-1 Exchange Visitor Status is the Form DS-2019. This document is issued by the program sponsor (the university, government agency, or other organization sponsoring the visit) through the Student and Exchange Visitor Information System (SEVIS) for presentation at a U.S. consulate abroad to apply for a J-1 Exchange Visitor visa. It must also be presented to an immigration inspector upon entry into the US. You must keep all DS-2019s issued to you.
The initial DS-2019 that you use when you enter the country and stamped by the Department of Homeland Security is an important immigration document. Copy both sides to keep with your records. If you lose your DS-2019, alert the Norwich University International Center.