An ISSO advisor will be available for travel signatures. Come with your passport (check your visa page in advance to see when it expires), most recent I-20 / DS-2019, print-out of most recent I-94 arrival/departure record. A travel signature is relevant only to F-1 students or J-1 students (and their dependents) who are planning to travel abroad and return to the U.S. in F or J status. You must have an unexpired travel signature on the date you re-enter the U.S. Learn more about Travel Signatures — https://isso.columbia.edu/content/travel-signatures-and-passport-renewal