Chinanews, Beijing, December 6 – According to the General Administration of Quality Supervision, Inspection and Quarantine, since December 1, 2007, all returning Chinese who have stayed abroad for a year or longer will have to take AIDS check before they are allowed to enter the Customs, or they must promise to take the check in certified hospitals within one month of their return.Those who will stay abroad for a year and those who work on international liners are also required to take similar tests. Foreigners who wish to stay in China have to accept such test, too.