Currently, local government in the People's Republic of China is structured in a hierarchy on four different levels. With the village being the grassroots (usually a hundred or so families), and not considered part of the hierarchy, local government advances through the township, county, prefecture or municipality, and the province as the geographical area of jurisdiction increases. Each level in the hierarchy is responsible for overseeing the work carried out by lower levels on the administrative strata. At each level are two important officials. A figure that represents the Communist Party of China, colloquially termed the Party chief or the Party Secretary, acts as the policy maker. This figure is appointed by their superiors. The head of the local People's Government, is, in theory, elected by the people. Usually called a governor, mayor, or magistrate, depending on the level, this figure acts to carry out the policies and most ceremonial duties. The distinction has evolved into a system where the Party Secretary is always in precedence above the leader of the People's Government.