The Immigration Department (Chinese: 入境事務處, known as 人民入境事務處 before the 1997 transfer of sovereignty) of the Government of Hong Kong is responsible for immigration control of Hong Kong. After the People's Republic of China assumed sovereignty of the territory in July 1997, Hong Kong's immigration system remained largely unchanged from its British predecessor model. Residents from mainland China do not have the right of abode in Hong Kong, nor can they enter the territory freely, both before and after 1997. There are different regulations that apply to residents of Macau, another Special Administrative Region of China. In addition, visa-free entry acceptance regulations into Hong Kong for passport holders of some 170 countries remain unchanged before and after 1997.