The Mainland Travel Permit for Taiwan Residents, also known as Taiwan Compatriot Permit, is a type of travel document issued by Government of the People's Republic of China (PRC) to the Republic of China nationals (ROC) who hold household registration in Taiwan. The document is issued by the Ministry of Public Security (MPS). Since the identity documents issued by the government of the Republic of China are not recognized in the PRC, the permit serves as both the main travel document and identity document for Taiwanese people in the PRC territory and is used in all occasions in lieu of the Taiwan passport.