The full name of the civil air defense office is the civil air defense office, and the director level of the civil air defense office: the director of the county and city civil air defense offices is the official department. The official department level refers to the level or specification of government agencies, usually the administrative status stipulated by laws or normative documents. The levels of administrative institutions are: national level, provincial (ministerial) level, department (bureau) level, county (department) level and township (department) level.