According to Fatu's website, Haikou Health Certificate is handled at Haikou Center for Disease Control and Prevention, located atNo. Donghu Road 1, Longhua District, Haikou City. There is no household registration restriction for obtaining a health certificate. Anyone who works in Haikou can obtain a health certificate. It should be noted that I can't have breakfast on the day of application, so as not to affect the test results.