A J1 visa is a form of US study and exchange visa. It allows you to stay in the US for a limited time while participating in an exchange visitor programme. To be eligible for a J1 visa, you must first apply for an exchange programme through an assigned sponsor in the United States. You can apply for a J1 visa only after you have been accepted into a programme.
A J-1 visa allows you to stay for two or three years. However, the length of time you are permitted to stay in the United States on a J-1 visa varies based on the programme for which you applied.
For example, if you are a university student, your visa is valid for the duration of your studies, whereas a short-term scholar is only allowed to stay for six months. After their visa ends, all J-1 visa holders are usually allowed a 30-day grace period to plan their return trip home.