Information on China's border Check and Security Check On arrival at a Chinese port,aliens shall accept inspection by a frontier defense inspection station,fill out entry(departure)cards and hand them in with their passports to the frontier defense inspectors for examination.Aliens can enter China only after the frontier inspectors have examined their passports and entry(departure)cards,have applied the approval entry seal upon the passports and taken over the entry (departure)cards from them. Exit Inspection Aliens shall leave China within the period of time prescribed on the visa.For exit from China, aliens shall present their valid passports and departure cards to frontier inspector for examination. Aliens who hold residence certificates issued by the Chinese Government and who are not to return, shall turn in the residence certificates.They can leave China only after the frontier inspector have examined their passports and departure cards and applied the approval exit seal upon the passports. Chinese citizens who desire to leave the country shall apply to a competent office for passports.Except specially stipulated, all citizens,either on official business or for private purposes, shall obtain visas from the country or countries they are going to before they are allowed to leave.In case where a country has special regulations regarding the entry,exit and transit of the Chinese,the competent authorities of the Chinese Government will take corresponding measures contingent on the circumstances.6 Information on China’s border Check and Security Check On arrival at a Chinese port, aliens shall acceptinspectionby a frontier defense inspection station, fill out entry (departure) cards and hand them in with their passports to the frontier defense inspectors for examination. Aliens can enter China only after the frontier inspectors have examined their passports and entry (departure) cards, have applied the approval entry seal upon the passports and takenover the entry (departure) cardsfrom them. Exit Inspection Aliens shall leave China within the period of time prescribedon the visa. For exit from China, aliensshall present their valid passports and departure cardsto frontier inspector for examination. Aliens who hold residence certificatesissuedby the Chinese Government and who are not to return, shall turn in the residence certificates.They can leave China only after the frontier inspector have examined their passports and departure cards and applied the approval exitseal upon the passports. Chinese citizens who desire to leave the country shall apply to a competent office for passports. Exceptspecially stipulated, all citizens, either on official business or for private purposes, shall obtain visasfrom the country or countries they are going to before they are allowedto leave.In case where a country has special regulations regarding the entry, exit and transit of the Chinese, the competent authorities of the Chinese Government will take corresponding measures contingent on the circumstances