First, the time that J1 and J2 can stay abroad depends on the 219 form, so the duration of the two visas is the same; J1 must report to the school within 3 days of the start date of the 219 form, and J2 is free.
2. J-1 visa is a kind of non-immigrant visa, which is issued to all kinds of foreigners who participate in the "exchange visitor program". Its purpose is to promote mutual understanding, promote international cooperation and develop friendly relations between countries. J-1 visa mainly includes the following 12 categories:
1. Student visa: according to the category of the school where the students are located, it is divided into J-1 high school students and J-1 college/university students. J-1 high school students must meet certain age requirements and participate in full-time study.
2. Short-term visiting scholar visa: it is suitable for short-term visiting scholars who engage in the following activities for a certain period of time: teaching; Investigation; Exchange views; Receive training; Demonstrate special skills in research institutions, museums, libraries, higher recognized educational institutions or similar institutions.
3. Trainee visa: to participate in training to improve their professional and non-professional skills or enhance their understanding of technology; In order to better understand the culture and society or to promote the understanding of other countries' cultures through exchanges with relevant people, participate in training.
4. Teacher visa: a teacher who teaches in a foreign public or private primary education institution (subject to official approval); Teachers who teach in foreign public or private secondary education institutions (subject to official recognition).
5. Professor visa: teaching, speaking, studying or exchanging opinions in institutions of higher learning, museums, libraries or other similar institutions recognized by official institutions. Professor J-1 can also guide relevant research without the guarantor's objection.
6. Research Scholar Visa: J-1 personnel who mainly guide, inspect or exchange opinions on research-related issues in research institutions, research departments of companies, museums, libraries, institutions of higher learning recognized by official institutions or other similar institutions. Research scholars can also give lectures or give lectures without objection from the sponsors.
7. Expert visa: it is suitable for people who meet the following conditions: they have a certain professional knowledge or skills; Those who are engaged in investigation, exchange opinions or display their professional knowledge or skills do not belong to the following personnel: professors, research scholars, short-term visiting scholars, and foreign doctors who participate in postgraduate medical study or internship.
8. Doctor visa: foreign medical graduates are allowed to participate in postgraduate medical study or internship, or engage in activities such as investigation, exchange of opinions, teaching and research. However, applicants for such visas, that is, foreign doctors, must meet certain educational and cultural background requirements and pass the tests of specific institutions in the United States.
9. Visa for international visitors: only applicable to a very small number of people. It is suitable for foreigners who are considered to have the potential to become leaders. They are selected to engage in the following activities: participating in study tours, attending seminars and special meetings, exchanging opinions, visiting factories, and traveling.
1. government visitor visa: only for a few people. It is considered to be influential or extremely outstanding and selected by the organization to participate in the following activities: participating in study tours, attending seminars and special meetings, exchanging opinions, visiting factories and traveling.
11. summer camp consultant visa: foreigners who have reached the age of 18 are allowed to serve as consultants in summer camps, supervise the activities of young people who participate in summer camps and learn from them, but they are not allowed to serve as administrators, cooks or provide boring manual labor (such as washing dishes and watching the door) in summer camps.
12. Job-changing lodger visa: Allow its holder to enter the country, take care of children for a limited time and experience family life while attending high school. Participants in the job-changing accommodation program can participate in a branch of the program-the education and insurance program; The program allows the residents who change jobs to reduce the hours of child care each week and better participate in academic study. J-1 workers must meet certain age and education requirements and successfully pass the background investigation. J-1 job-changing lodgers only need to complete the nursing work for a certain period of time in order to take care of their children at home, and they can get paid accordingly.
Third, J2 is the accompanying visa corresponding to J1.