If your visa doesn’t cover the whole time that you will be in school in the US, you will have to apply for renewal or extensions. 구직비자. F1 Visa Requirements. The term “visa” refers to the visa stamp in your passport, not your I-20 or DS-2019 form. All international students who wish to study in the United States (except Canadians) require an F-1 student visa – including those from Visa Waiver Program countries who would otherwise qualify for an ESTA.