General elective courses start from the second week, 17 week exam, online general courses start from the third week, 16 week exam, and online open classes start from the third week, 17 week exam.

According to the requirements of the Ministry of Education, the National Open University implements the credit system. The minimum study period for two-year junior college and undergraduate majors is two and a half years. Student status is retained for 8 years from the date of admission, which is the longest retention time among all kinds of adult colleges and universities. The so-called student status retention is 8 years, that is, students complete all courses within 8 years from the date of admission. Even if there is an interruption during several years of study, you can still graduate normally as long as you continue to study and complete all courses.