Article 20 The exit and entry administration authority of the public security organ may verify the purpose of application through such means as interview, telephone inquiry and on-the-spot investigation, and the applicant as well as the entity or individual that has provided the letter of invitation or certification documents shall cooperate.
Article 21 In one of the following circumstances, the exit and entry administration authority of the public security organ shall not approve the application for extension, change or reissuance of a visa or residence permit, or the application for a stay permit, submitted by a foreigner:
(1) The applicant fails to provide material supporting his or her application in accordance with relevant provisions;
(2) The applicant has knowingly falsified information in the application process;
(3) The applicant is not eligible for staying or residing in China due to violation of relevant Chinese laws or administrative regulations; or
(4) Other circumstances where it is not appropriate to approve the applicant's application for extension, change or reissuance of a visa or residence permit, or for issuance of a stay permit.
Article 22 Where a foreigner holding a residence permit for study intends to engage in off-campus work-study or internship, he or she shall, upon the approval of the school, apply to the exit and entry administration authority of the public security organ to have such information as the location and duration of the work-study program or internship placement specified in his or her residence permit.
A foreigner holding a residence permit for study shall not engage in any off-campus work-study or internship unless the information prescribed in the preceding paragraph is specified in his or her residence permit.
Article 23 A foreigner who does not hold a valid passport or other international travel documents due to loss, damage, destruction, theft, robbery or other reasons and cannot get the said passport or documents reissued by the relevant institution of his own country stationed in China may apply for exit formalities to the exit and entry administration authority of the public security organ of the local people's government at or above the county level in the place of his or her stay or residence.
Article 24 A foreigner whose area of stay is specified in his exit and entry documents or a foreigner who is approved temporary entry into China with restrictions on area of stay by the exit and entry border inspection authority shall stay in the specified or restricted area.
Article 25 In one of the following circumstances, a foreigner shall be deemed to be residing in China illegally:
(1) The applicant's stay or residence exceeds the duration specified in his or her visa, stay permit or residence permit;
(2) The applicant overstays the visa-free period and fails to obtain a stay permit or residence permit;
(3) The activities of the applicant go beyond the restricted area of stay or residence; or
(4) Other circumstances where foreigners reside illegally.
Article 26 Upon discovery of one of the following circumstances, the entity that employs a foreigner or admits a foreign student shall, in a timely manner, report to the exit and entry administration authority of the public security organ of the local people's government at or above the county level:
(1) A foreigner employed resigns or changes employment location;
(2) A foreign student admitted has graduated, completed his or her course(s) or study, has quit school, or has left the school ungraduated;
(3) A foreigner employed or a foreign student admitted violates the provisions on administration of exit and entry; or
(4) A foreigner employed or a foreign student admitted dies, disappears or other serious circumstances arise.