Huaiyuan Public Security Bureau. Most of the places where household registration is processed are the public security bureaus. The nearest public security bureau to Ningxia University Huaiyuan Campus is the Huaiyuan Public Security Bureau. Ningxia University, referred to as "Ningda", is located in Yinchuan City, the capital of the Ningxia Hui Autonomous Region. It is a university jointly established by the Ministry of Education of the People's Republic of China and the People's Government of the Ningxia Hui Autonomous Region.