1. Studying abroad at one's own expense is not limited by academic qualifications and age. Anyone who has the conditions can apply to go abroad to study at a university (junior college, undergraduate course), graduate or pursue further studies at his own expense.
2. Middle school graduates and self-funded college students who apply for studying abroad at their own expense can go through the formalities of studying abroad at their own expense with relevant documents directly to the public security organ where their household registration is located.
3. College students and graduates (with college education or above) at public expense may apply for studying abroad at their own expense after serving in China for a certain number of years or repaying compensation for higher education.
About application categories and requirements:
1. Doctoral students: they are not over 35 years old at the time of application, have a master's degree, are excellent first-year doctoral students, or are excellent recent master's graduates. When applying, you must submit an admission notice from a foreign educational institution.
2. Joint training of doctoral students: applicants should be excellent doctoral students in the first and second grades, and the age at the time of application should not exceed 35. The formal invitation letter issued by foreign educational institutions and the training plan jointly formulated by domestic and foreign tutors should be submitted when applying.
3. Postgraduate: No more than 30 years old at the time of application, and should have a bachelor's degree or an excellent undergraduate graduate. When applying, you must submit an admission notice from a foreign educational institution.
Reference to the above content: Baidu Encyclopedia-National Public School Study Abroad Selection Method