Embassies and consulates will issue visas no more than 120 days before your program of study begins. You must submit the visa application (DS-160) and pay the fee before you can schedule your interview. If you have received an I-20 from the Intensive English Language Program, you will apply for an F-1 student visa for Academic or Language Students.
Visa Application Link: https://ceac.state.gov/genniv/