SAR permanent residents who are not Chinese citizens (including stateless persons) are not eligible for SAR passports. Persons who hold a non-Chinese citizenship must obtain passports from foreign diplomatic missions which represents their countries of citizenship. For those who are stateless, each SAR may issue its own form of certificates of identity, e.g. Document of Identity, in lieu of national passports to the persons concerned. Chinese citizens who are non-permanent residents of two SARs are also ineligible for SAR passports but may obtain CIs just like stateless persons.