1. When there is no major epidemic reported in China or abroad, inbound and outbound personnel are not obligated to fill out an "Entry-Exit Quarantine and Health Declaration Card". However, inbound and outbound personnel exhibiting symptoms of fever, nausea, cough, breathing difficulty, diarrhea, contagious disease or psychiatric disorders or who may be carrying microorganisms, human tissues, biological products, blood or its products shall verbally declare their status to a quarantine officer at the passenger inspection lane and subject themselves to inspection and quarantine. (Excerpt from 2008 No. 62 Notice on Streamlining Health Declaration Procedures for Inbound and Outbound Passengers at Border Crossings Nationwide, issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China)

2. When there is a major epidemic reported in China or abroad, compulsory inspection and quarantine measures announced by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China with regard to inbound and outbound personnel shall apply, and inbound and outbound personnel shall truthfully fill out the "Entry-Exit Quarantine and Health Declaration Card", enter or exit through the dedicated lane for inspection and quarantine, and have their luggage scanned. (Excerpt from 2008 No. 62 Notice on Streamlining Health Declaration Procedures for Inbound and Outbound Passengers at Border Crossings Nationwide, issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China)

Source: english.gov.cn